LinkIt 2523 HDK V11 User's Guide Link It Users

LinkIt_2523_HDK_Users_Guide

User Manual:

Open the PDF directly: View PDF .
Page Count: 88

1. Introduction
2. Get Started with the HDK
- 2.1. Installing the LinkIt 2523 HDK drivers on Microsoft Windows
- 2.2. Downloading the project image using the LinkIt 2523 HDK as a removable storage
3. Hardware Description
4. Hardware Configuration
5. Schematics (V11)
6. Layout (V11)
7. LinkIt 2523 HDK’s BOM (V11)
8. Appendix A: Acronyms and Abbreviations

LinkIt 2523 HDK v11 User's Guide

Version: 1.1

Release date: 4 November 2016

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s). MediaTek cannot grant you

permission for any material that is owned by third parties. You may only use or reproduce this document if you have agreed to and been

bound by the applicable license agreement with MediaTek (“License Agreement”) and been granted explicit permission within the License

Agreement (“Permitted User”). If you are not a Permitted User, please cease any access or use of this document immediately. Any

unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited. THIS DOCUMENT IS PROVIDED ON AN

“AS-IS” BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES OF ANY KIND AND SHALL IN NO EVENT BE LIABLE FOR ANY

CLAIMS RELATING TO OR ARISING OUT OF THIS DOCUMENT OR ANY USE OR INABILITY TO USE THEREOF. Specifications contained herein are

subject to change without notice.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Document Revision History

Revision Date Description

1.0 2 September 2016 Initial release. This document is for LinkIt 2523 HDK v11.

1.1 4 November 2016 • Updated introduction to include top and bottom views of the

LinkIt 2523 HDK v11.

• Updated the section for Bluetooth and Bluetooth Low Energy.

• Updated the schematic and the BOM list.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Table of contents

1. Introduction ........................................................................................................................................ 1

2. Get Started with the HDK .................................................................................................................... 3

2.1. Installing the LinkIt 2523 HDK drivers on Microsoft Windows ........................................................... 3

2.2. Downloading the project image using the LinkIt 2523 HDK as a removable storage ......................... 6

3. Hardware Description ......................................................................................................................... 7

4. Hardware Configuration .................................................................................................................... 10

4.1. Microcontroller unit ......................................................................................................................... 10

4.2. Power ................................................................................................................................................ 10

4.3. Jumpers ............................................................................................................................................ 16

4.4. LEDs .................................................................................................................................................. 18

4.5. Buttons ............................................................................................................................................. 20

4.6. GPIO .................................................................................................................................................. 21

4.7. LCM ................................................................................................................................................... 22

4.8. Audio ................................................................................................................................................ 25

4.9. Speech .............................................................................................................................................. 25

4.10. MSDC ................................................................................................................................................ 25

4.11. Camera ............................................................................................................................................. 27

4.12. USB ................................................................................................................................................... 29

4.13. GNSS (LinkIt 2523G only) .................................................................................................................. 30

4.14. Bluetooth and Bluetooth Low Energy............................................................................................... 30

4.15. Debugging ......................................................................................................................................... 32

4.16. Connectors ........................................................................................................................................ 34

5. Schematics (V11) ............................................................................................................................... 49

6. Layout (V11)...................................................................................................................................... 71

7. LinkIt 2523 HDK’s BOM (V11) ............................................................................................................ 75

8. Appendix A: Acronyms and Abbreviations ......................................................................................... 82

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Lists of tables and figures

Table 1. Power input jumpers ............................................................................................................................... 10

Table 2. GPIO voltage level customization with jumper and pin (illustrated) settings ......................................... 11

Table 3. Enabling the active GPS antenna on HDK with jumper pin settings (illustrated) .................................... 13

Table 4. PSRAM power source selection jumpers ................................................................................................. 14

Table 5. Serial flash I/O power source selection jumper ...................................................................................... 15

Table 6. Analog I/O power source selection jumper ............................................................................................. 15

Table 7. LinkIt 2523 HDK jumper index ................................................................................................................. 16

Table 8. The LED indicators ................................................................................................................................... 18

Table 9. Buttons and corresponding keypad functionality ................................................................................... 20

Table 10. LinkIt 2523 board’s eFuse jumper pin settings (illustrated) .................................................................. 22

Table 11. LinkIt 2523 board’s RTC jumper pin settings ......................................................................................... 22

Table 12. LCM backlight source selection settings (illustrated) ............................................................................ 23

Table 13. LinkIt 2523 HDK display peripheral jumper pin settings (illustrated) .................................................... 24

Table 14. Jumper settings (illustrated) for storage options .................................................................................. 25

Table 15. Jumper pin settings (illustrated) for camera and sensor daughterboards ............................................ 28

Table 16. Jumper pin settings (illustrated) for Bluetooth ..................................................................................... 31

Table 17. Resistor selections ................................................................................................................................. 33

Table 18. Battery connector CON2101 (see Figure 18) ......................................................................................... 34

Table 19. Micro-SD tray ........................................................................................................................................ 35

Table 20. OMTP Audio jack connector .................................................................................................................. 35

Table 21. LCM serial display daughterboard connector ....................................................................................... 36

Table 22. Serial camera daughterboard connector CON6201 .............................................................................. 37

Table 23. Sensor daughterboard connector CON6301 ......................................................................................... 38

Table 24.The HDK’s high speed USB 2.0 connector .............................................................................................. 39

Table 25. CMSIS-DAP USB full speed connector ................................................................................................... 40

Table 26. MK20 JTAG connector pin definition ..................................................................................................... 41

Table 27. eMMC/micro SD jumpers ...................................................................................................................... 41

Table 28. JTAG connector CON9002 ..................................................................................................................... 41

Table 29. GPIO pin functionalities ......................................................................................................................... 43

Table 30. LinkIt 2523 HDK bill of materials ........................................................................................................... 75

Table 31. Acronyms and abbreviations ................................................................................................................. 82

Figure 1. Top view of the LinkIt 2523 HDK v11 ....................................................................................................... 1

Figure 2. Bottom view of the LinkIt 2523 HDK v11 ................................................................................................. 2

Figure 3. USB connectors on the LinkIt 2523 development board ......................................................................... 3

Figure 4. Device COM port for debugging on your PC ............................................................................................ 4

Figure 5. Device COM port for logging on your PC ................................................................................................. 5

Figure 6. A typical USB to UART converter.............................................................................................................. 5

Figure 7. LinkIt 2523 HDK connected as removable disk storage ........................................................................... 6

Figure 8. LinkIt 2523 HDK’s top view....................................................................................................................... 8

Figure 9. LinkIt 2523 HDK’s bottom view ................................................................................................................ 9

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 10. The positions of jumpers J1105, J1110 to J1112. J1114, resistors R4101, R1113, GPDAC test point TP1101

and micro SD cardholder ...................................................................................................................................... 12

Figure 11. The jumper positions for J5201 and J5202, J1106, J1108, J1109 ......................................................... 14

Figure 12. LED positions for LED2001, LED2003 and LED6601 ............................................................................. 19

Figure 13. LED positions for LED9201, LED9206 and LED9209 ............................................................................. 20

Figure 14. The positions of buttons, strap pin resistors, jumpers J1102 to J1104 ................................................ 21

Figure 15. LCM display module and backlight jumper locations .......................................................................... 23

Figure 16. Jumpers J1001 to J1006 for storage options ........................................................................................ 27

Figure 17. Jumper pin locations of J1007 to J1012, J1015 .................................................................................... 28

Figure 18. Positions of J1101 and Bluetooth antenna path selection from J5001 to J5004, U1101, CON2101 and

resistor R5005 ....................................................................................................................................................... 31

Figure 19. The positions of UART and I2C pin header for debugging facilitation ................................................. 34

Figure 20. Micro-SD card holder CON4101 ........................................................................................................... 35

Figure 21. Serial LCM daughterboard’s connector and I2C pull-up resistors (R1002, R1003) ............................. 36

Figure 22. Serial camera daughterboard CON6201 .............................................................................................. 37

Figure 23. The position of the camera daughterboard pin headers ..................................................................... 37

Figure 24. High-speed USB2.0 connector ............................................................................................................. 39

Figure 25. CMSIS-DAP USB 1.1 full speed connector ............................................................................................ 39

Figure 26. MK20 JTAG connector, sensor daughterboard connector and PSRAM power switch J1113 .............. 40

Figure 27. JTAG connector CON9002 pin definition ............................................................................................. 42

Figure 28. LinkIt 2523 HDK extension connectors ................................................................................................ 43

Figure 29. Block diagram ....................................................................................................................................... 50

Figure 30. I2C ID .................................................................................................................................................... 51

Figure 31. PMU_SPEC ............................................................................................................................................ 52

Figure 32. BB MT2523G BB ................................................................................................................................... 53

Figure 33. BB_MT2523G_ABB ............................................................................................................................... 54

Figure 34. POWER_COMMON_LDO ...................................................................................................................... 55

Figure 35. POWER_Charging ................................................................................................................................. 56

Figure 36. MEMORY_eMMC ................................................................................................................................. 57

Figure 37. MEMORY_SD Card ............................................................................................................................... 58

Figure 38. CONNECTIVITY_BT_MT2523G .............................................................................................................. 59

Figure 39. CONNECTIVITY_GPS_MT2523G ........................................................................................................... 60

Figure 40. PERI_Audio_IO ..................................................................................................................................... 61

Figure 41. PERI_LCD_Capacitive touch panel ........................................................................................................ 62

Figure 42. PERI_CAMERA ...................................................................................................................................... 63

Figure 43. PERI_SENSOR_DTB_IO ......................................................................................................................... 64

Figure 44. PERI_USB .............................................................................................................................................. 65

Figure 45. PERI_KEY .............................................................................................................................................. 66

Figure 46. PERI_SWD ............................................................................................................................................. 67

Figure 47. DEBUG_IO ............................................................................................................................................ 68

Figure 48. POWER INDICATOR .............................................................................................................................. 69

Figure 49. LCM ...................................................................................................................................................... 70

Figure 50. LinkIt 2523 HDK layout (Layer 1) .......................................................................................................... 71

Figure 51. LinkIt 2523 HDK layout (Layer 2) .......................................................................................................... 72

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 52. LinkIt 2523 HDK layout (Layer 3) .......................................................................................................... 73

Figure 53. LinkIt 2523 HDK layout (Layer 4) .......................................................................................................... 74

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

1. Introduction

MediaTek LinkIt™ 2523 hardware development kit (HDK) by SAC is a fully functional development platform for

RTOS for IoT and Wearable applications powered by MediaTek MT2523G, an ARM Cortex-M4 core-based

microcontroller unit (MCU). The HDK has rich connectivity features and interfaces such as SPI, I2S, PCM, UART,

ADC, PWM, JTAG and clock out generators.

The LinkIt 2523 HDK enables application development, prototyping and evaluation using sensors, Bluetooth,

Bluetooth low energy, GNSS, audio (speech, headset and speaker), MIPI, serial, camera serial interface, keypad,

battery management, micro SD and eMMC portable storage support and high speed USB 2.0. The LinkIt 2523 HDK

also has built-in antenna that is able to receive Bluetooth (compatibility with up to 4.0 and higher versions), and

GNSS (GPS, GLONASS and BeiDou) signals. In addition, the USB to serial wire debug (SWD) converter and JTAG

feature provides convenient development and debugging.

The LinkIt 2523 HDK supports OpenSDA to provide more streamlined development to debug and flash the binary

code.

This user’s guide covers MT2523G and MT2523D integrated chipsets. The functions and pin assignments from both

chipsets are identical, except the MT2523D doesn’t support GNSS communication.

The user manual guides you through the following.

• Describing the hardware features of the LinkIt 2523 HDK.

• Configuring the LinkIt 2523 HDK with specific pin and jumper assignments.

• Providing the hardware schematics for more detailed configuration and reference design.

• Listing bill of materials (BOM) for the LinkIt 2523 HDK.

Front and back views of the LinkIt 2523 HDK version 11 are presented in Figure 1 and Figure 2, respectively.

Figure 1. Top view of the LinkIt 2523 HDK v11

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 2. Bottom view of the LinkIt 2523 HDK v11

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

2. Get Started with the HDK

This section provides details on how to configure the HDK and install the required peripheral drivers for the full

operation of the development platform.

Before commencing the application development, set the jumpers for the camera daughterboard, as shown in

Figure 3.

Figure 3. USB connectors on the LinkIt 2523 development board

The 2523 USB can be used for powering up the board and downloading the binary with LinkIt 2523 Flash Tool.

The MK20 USB can be used for debugging with GDB and downloading the binary using Keil IDE. To learn more

about 2523 USB COM port driver, see section 2.3, “Installing the USB driver” of MT2523 Flash Tool Users Guide.

2.1. Installing the LinkIt 2523 HDK drivers on Microsoft Windows

Install mbed serial port driver to use the USB serial port on Windows OS for debugging:

1) Download and install the Windows serial port driver from here.

2) Connect the board to the computer through 2523 USB and the MK20 USB.

3) Open Windows Control Panel, click System and:

• On Windows 7 and 8, click Device Manager.

• On Windows XP, click the Hardware tab and then Device Manager.

4) In Device Manager, navigate to Ports (COM & LPT) (see Figure 4).

Jumpers for the Camera

Daughterboard

2523 USB

MK20 USB

System

Power

3 2 1

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

A new COM device should appear under Ports (COM & LPT), as shown in Figure 4. Note the COMx port

number of the mbed Serial Port. Use this port to send and receive data to and from the LinkIt 2523 HDK.

Figure 4. Device COM port for debugging on your PC

To install a USB to UART driver, such as prolific USB to UART converter:

1) Connect a USB to UART cable to PC, such as USB to Serial/UART Bridge Controller (Integrated crystal/OTP).

A new unknown device will be detected on Microsoft Windows system, if the device driver wasn’t setup

before.

2) Download and install the USB to UART cable driver from Prolific. After the driver is installed, unknown

device will be changed to Prolific USB-to-Serial Comm Port.

3) Open Windows Control Panel, click System.

• On Windows 7 and 8, click Device Manager.

• On Windows XP, click the Hardware tab and then Device Manager.

4) In Device Manager, navigate to Ports (COM & LPT) (see Figure 5). A new COM device should appear.

Note the COMx port number of the Prolific USB-to-Serial Comm Port. The COM port can now be used

to receive system logs through the UART interface on the LinkIt 2523 HDK.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 5. Device COM port for logging on your PC

A typical USB to UART converter is shown in Figure 6. The USB connector should be connected to the PC. The jump

wires (count of four) should be connected to the UART interface on the LinkIt 2523 HDK. Connect the black wire to

the GND, the white wire to the RX and the green wire to the TX and no need to connect the red wire. Once the

converter is connected, the system logs will display on the serial monitor tool, such as Tera Terminal. Figure 19

shows the UART port connector location.

Figure 6. A typical USB to UART converter

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

2.2. Downloading the project image using the LinkIt 2523 HDK as a

removable storage

To update the FreeRTOS image only (example project image: iot_sdk_demo.bin) use the LinkIt 2523 HDK as a

removable disk drive according to the following steps:

1) Connect the LinkIt 2523 HDK to your PC with a micro-USB cable to the MK20 USB connector.

2) Navigate to Computer on your PC to check if a new mass storage named MT2523 is available

under Devices with Removable Storage, as shown in Figure 7.

Figure 7. LinkIt 2523 HDK connected as removable disk storage

3) Open the MT2523 removable storage, then drag and drop the project image, such as

iot_sdk_demo.bin, from the original image folder to update the image on the HDK’s flash.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

3. Hardware Description

LinkIt 2523 HDK provides connections between the system on chip (SOC) and the peripherals, such as micro SD

card, eMMC, MIPI LCM, serial LCM, touch panel, serial camera, sensor daughterboard, GNSS, Bluetooth, audio

speech and high speed USB 2.0.

The top and bottom layout views (Figure 8 and Figure 9, respectively) show the positions of the peripherals on the

development board. Some of the peripheral interfaces are mutually exclusive. The eMMC and the micro SD, for

example, cannot be used at the same time, as the corresponding pins can only be assigned to one function at a

time.

The LinkIt 2523 HDK provides the following features for application development.

• ARM Cortex-M4 core-based MT2523G microcontroller.

• Internal 160kB SRAM and 4MB PSRAM.

• Internal 4MB serial flash.

• Rich interfaces.

• Three I2Cs.

• Four master SPIs and a slave SPI.

• One master I2S and one slave I2S.

• One PCM interface that supports master.

• Four sets of UARTs. The first set of UART is directly configured through pin headers, the other three sets

are software configurable.

• Five 12-bit ADCs.

• Six PWMs by alternative voltage level.

• Two SDMMCs.

• JTAG debugging support.

• Five sets of clock outputs.

• Peripherals.

• One serial camera interface supporting up to 3-bit mode image capture.

• Two display modes supporting serial interface and MIPI with the resolution of up to 320*320 pixels.

• Keypad supported to simulate buttons, such as volume up or down, backward and enter.

• Onboard speaker, onboard analog microphone and audio jack appliance.

• User-friendly customization.

• Supports Bluetooth (2.4GHz) and GNSS onboard antenna connectivity and an SMA connector for

dedicated antenna connectivity.

• Supports 2-wire SWD interface for debugging purposes.

• Headers for convenient and accurate current measurement.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 8. LinkIt 2523 HDK’s top view

BT SMA

(SMA 5002)

R9023

Analog

Microphone

(MIC6001)

GNSS/BT SMA

(SMA 5001)

Analog Jack

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 9. LinkIt 2523 HDK’s bottom view

For more details on the HDK schematics see chapter 5, “Schematics”.

GNSS RTC

Battery

R9017 to R9021

2523 JTAG (CON9002)

Connector

Speaker with

Housing

R4005

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4. Hardware Configuration

4.1. Microcontroller unit

The LinkIt 2523 HDK is powered by MediaTek MT2523G SOC, designed for IoT applications and equipped with

flexible pin assignments for custom applications.

MT2523G SOC is an ARM Cortex-M4 core-based architecture with built-in Bluetooth and Bluetooth Low Energy

connectivity support, GNSS, audio interface, internal PSRAM and flash storage. The LinkIt 2523 HDK provides

peripheral support for the I2C, SPI, UART, ADC, PWM, clock generator, audio and SDMMC interfaces.

LinkIt 2523 platform featured applications include but are not limited to industrial applications and automation,

medical signal processing applications, such as sports physiological signal recording, long term medical data

recording, home automation applications, tracking and safety applications using GNSS.

4.2. Power

This section describes the power source options for the LinkIt 2523 HDK. The HDK can operate powered by USB or

a battery. To charge the battery, the USB cable has to be connected. The board can enter to sleep mode using the

PSRAM memory. The sleep mode can be enabled or disabled by the software.

The LinkIt 2523 HDK also enables GPIO voltage setting configuration based on the supported components. It also

can supply power to the storage, such as micro SD or eMMC. The HDK supports an active GNSS antenna that

requires a power input, see section 4.2.4, “Powering on an active GPS antenna”.

4.2.1. Powering up with the USB

Connect a micro USB cable directly to 2523 USB or MK20 USB (see Figure 3) to supply power to the HDK. Set the

jumper J2001 (system power) to pin 1 and pin 2, to charge the battery using a USB connector. To boot up the

system without a battery, apply the jumper settings, as shown in Table 1. The jumper J2001 (system power)

location is marked in Figure 3, it’s assigned for the power rail source. The main power traces through jumper J2001

to the system.

For the battery criteria of LinkIt 2523 HDK, the capacity between 30mAh to 500mAh is recommended; charging

voltage from USB connector with tolerance between 4.15V to 7V is acceptable. The LinkIt 2523 HDK also supports

powering on the battery with power key, where the system power jumper setting is the same as to charge the

battery.

Table 1. Power input jumpers

Power path switch Set the jumper J2001 pins to assign the power source from 2523 USB connector

or MK20 USB connector, as shown below.

Set the jumper J2001 pins to get the power source from battery connector

CON2101 (see Figure 18), as shown below.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4.2.2. Power source for digital I/O

LinkIt 2523 HDK supplies power to devices with different voltage support. GPIO voltage level customization is

shown in Table 2. Jumper and resistor positions are specified in Figure 10 and Figure 11.

Table 2. GPIO voltage level customization with jumper and pin (illustrated) settings

Power rail

DVDD_VIO_A voltage

Set the jumper J1106 pins with 0Ω resistor to assign the power rail DVDD_VIO_A

to VIO28, as shown below.

Set the jumper J1106 pins with 0Ω resistor to assign the power rail DVDD_VIO_A

to VIO18, as shown below.

Power rail

DVDD_VIO_C voltage

Set the jumper J1108 pins with 0Ω resistor to assign the power rail

DVDD_VIO_C

to VIO28, as shown below.

Set the jumper J1108 pins with 0Ω resistor to assign the power rail

DVDD_VIO_C

to VIO18, as shown below.

Power rail

DVDD_GPO voltage

Set the jumper J1109 pins with 0Ω resistor to assign the power rail DVDD_GPO to

VIO28, as shown below.

Set the jumper J1109 pins with 0Ω resistor to assign the power rail DVDD_GPO to

VIO18, as shown below.

Power rail

DVDD18_VIO18

voltage selection

Set the jumper J1110 pins with 0Ω resistor to assign the power

rail DVDD18_VIO18 to VIO28, as shown below.

Set the jumper J1110 pins with 0Ω resistor to assign the power

rail DVDD18_VIO18 to VIO18, as shown below.

Power rail Set the jumper J1111 pins with 0Ω resistor to assign the power rail

DVDD_VMC

VIO28, as shown below.

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

DVDD_VMC voltage

Set the jumper J1111 pins with 0Ω resistor to assign the power rail

DVDD_VMC

VIO18, as shown below.

Remove the jumper J1111 with 0Ω resistor to select the power rail DVDD_VMC

connected with VMC while the 0Ω resistor R1113 is mounted. Mount the 0Ω

resistors R1113 and R4101, to use micro SD storage.

Figure 10. The positions of jumpers J1105, J1110 to J1112. J1114, resistors R4101, R1113, GPDAC test point

TP1101 and micro SD cardholder

J1112

Micro SD

Cardholder

1 2 3

R4101 J1105

J1114

J1111

R1113

J1110

1 2 3

TP1101

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4.2.3. Powering on the eMMC or micro SD

The LinkIt 2523 HDK supports eMMC and micro SD card for storage. The HDK operates with either eMMC or micro

SD card (see Figure 10) enabled but not both at the same time.

4.2.4. Powering on an active GPS antenna

The active GPS antenna on LinkIt 2523 HDK can be either software controlled or hardware activated. Table 3

provides details on how to determine if the antenna is activated by direct power supply or by software control.

Adjust the jumpers J5201 and J5202 to change the settings. The jumper locations are shown in Figure 10 and

Figure 11.

Table 3. Enabling the active GPS antenna on HDK with jumper pin settings (illustrated)

Low noise amplifier

activation control

(should be synchronized

with J5202)

Set the jumper J5201 pins with 0Ω resistor to enable the active GPS

antenna using the power rail, as shown below.

Set the jumper J5201 pins with 0Ω resistor to enable the active GPS

antenna controlled by software settings, as shown below.

Active antenna power

supply (should be

synchronized with J5201)

Set the jumper J5202 pins with 0Ω resistor to supply power and enable

the active GPS antenna using the power rail, as shown below.

Set the jumper J5202 pins with 0Ω resistor to supply power and enable

the active GPS antenna controlled by software settings, as shown below.

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 11. The jumper positions for J5201 and J5202, J1106, J1108, J1109

4.2.5. The LCM backlight power source ISINK

The current sink for LCM backlight is the pin named ISINK. The current and voltage settings are configurable.

If the current sink is active, LED9209 is powered on to indicate the backlight is enabled. More details can be found

in Table 8, Figure 12 and Figure 13.

4.2.6. PSRAM power source

The PSRAM power source can be set to either always powered on or could be controlled by user-defined settings.

Table 4 provides the jumper settings for each of the methods. The jumpers J1105 (see Figure 10) and J1113 (see

Figure 26) can be adjusted for PSRAM power source.

Table 4. PSRAM power source selection jumpers

PSRAM power supply J1105

(Should be synchronized

with J1113)

Connect the jumper J1105 pins with 0Ω resistor to set the power source

from VSWXM, as shown below.

J1108 J1106 J5201

J5202

J1109

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Connect the jumper J1105 pins with 0Ω resistor to set the power source

from VIO18, as shown below.

PSRAM power supply J1113

(Should be synchronized

with J1105)

Connect the jumper J1113 pins to set the power source from VIO18, as

shown below.

Connect the jumper J1113 pins to set the power source from VSWXM, as

shown below.

4.2.7. Serial flash I/O power source

Table 5 provides two different settings to power up the serial flash.

Table 5. Serial flash I/O power source selection jumper

Serial flash I/O

power supply J1112

Connect the jumper J1112 (see Figure 10) pins with 0Ω resistor to set the power

source from VIO18, as shown below.

Connect the jumper J1112 (see Figure 10) pins with 0Ω resistor to set the power

source from VSF, as shown below.

4.2.8. Analog I/O power selection

Table 6 provides two different settings to power up the analog I/O.

Table 6. Analog I/O power source selection jumper

Analog I/O power

supply J1114

Connect the jumper J1114 (see Figure 10) pins with 0Ω resistor to set the power

source from VA28, as shown below.

Connect the jumper J1114 pins with 0Ω resistor to set the power source from

VIO28, as shown below.

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4.3. Jumpers

The HDK offers flexible jumper settings for customization. Table 7 summarizes the functions associated with

different jumpers.

Table 7. LinkIt 2523 HDK jumper index

Jumpers Purpose Features Type

J1001

J1002

J1003

J1004

J1005

J1006

Storage options

• eMMC

• Micro SD

GPIO selection, see

section 4.10, “MSDC”.

J1007

J1008

J1009

J1010

J1011

J1012

J1015

Daughterboard options

of camera or sensor

• Sensor daughterboard

• Camera daughterboard

GPIO selection, see

section 4.11, “Camera”.

J1101 Selection of external

buck LDO by ROM

control or system boot

• Enable by VIO28

• Enable by EXT_PWREN

Power selection, see

section 4.14, “Bluetooth

and Bluetooth Low

Energy”.

J1102

MT2523 D-die eFuse

options

• Enable by VIO28

• Disable by GND

GPIO selection, see

section 4.6.1, “MT2523

digital die eFuse”.

J1103 32.768kHz XTAL support

(Should be synchronized

with J1104)

• Mount the 32.768kHz XTAL

for power saving operations

• Unmount the 32.768kHz

XTAL for cost reduction

GPIO selection, see

section 4.6.2, “RTC

source ”.

J1104 32.768kHz XTAL support

(Should be synchronized

with J1103)

• Mount the 32.768kHz XTAL

needed by VIO18

• Unmount the 32.768kHz

XTAL by VA18

GPIO selection, see

section 4.6.2, “RTC

source ”.

J1105

Power path for PSRAM

power source (SMT

type)

• VIO18 for PSRAM power

source

• VSWXM for PSRAM power

source

Power selection, see

section 4.2.6, “PSRAM

power source”.

J1106 Power path selection for

DVDD_VIO_A cluster

power source

• VIO18 for DVDD_VIO_A

cluster I/O voltage 1.8V

• VIO28

for DVDD_VIO_A cluster

I/O voltage 2.8V

Power selection, see

section 4.2.2, “Power

source for digital I/O”.

J1108

Power path selection for

DVDD_VIO_C cluster

power source

• VIO18 for DVDD_VIO_C

cluster I/O voltage 1.8V

• VIO28 for DVDD_VIO_C

cluster I/O voltage 2.8V

Power selection, see

section 4.2.2, “Power

source for digital I/O”.

J1109 Power path selection for •

VIO18 for DVDD_GPO cluster Power selection, see

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Jumpers Purpose Features Type

DVDD_GPO cluster

power source

I/O voltage 1.8V

• VIO28 for DVDD_GPO cluster

I/O voltage 2.8V

section 4.2.2, “Power

source for digital I/O”.

J1110 Power path selection for

DVDD18_VIO18 cluster

power source

• VIO18 for DVDD18_VIO18

cluster I/O voltage 1.8V

• VIO28 for DVDD18_VIO18

cluster I/O voltage 2.8V

Power selection, see

section 4.2.2, “Power

source for digital I/O”.

J1111 Power path selection for

DVDD_VMC cluster

power source

• VIO18 for DVDD_VMC cluster

IO voltage 1.8V

• VIO28 for DVDD_VMC cluster

IO voltage 2.8V

Power selection, see

section 4.2.2, “Power

source for digital I/O”.

J1112 Power path selection for

serial flash power source

• VSF for internal serial flash

power source

• VIO18 for internal serial

flash power source

Power selection, see

section 4.2.7, “Serial

flash I/O power source”.

J1113

Power path for PSRAM

power source (Jumper

type)

• VIO18 for PSRAM power

source

• VSWXM for PSRAM power

source

Power selection, see

section 4.2.6, “PSRAM

power source selection

jumpers”.

J1114 Power path for analog

I/O power source

• VIO28 for analog IO power

source

• VA28 for analog IO power

source

Power selection, see

section 4.2.8, “Analog

I/O power selection”.

J2001 Power path selection • VBAT for buck power supply

to system directly

• VBAT_CONN for battery

power supply to system,

also including battery

charging

GPIO selection, see

section 4.2.1, “Powering

up with the USB”.

J5001 External clock 26MHz

signal input support

• Enable using VIO28

• Disable using GND

GPIO selection, see

section 4.14, “Bluetooth

and Bluetooth Low

Energy”.

J5002 Bluetooth mode or BLE

mode selection

• VBT for Bluetooth mode

and BLE modes

• VIO18 for BLE mode only.

Power selection, see

section 4.14, “Bluetooth

and Bluetooth Low

Energy”.

J5003 RF signal path selection

by onboard antenna or

SMA connector

• Select onboard antenna by

connecting pin 1 and pin 2.

• Select SMA connector

antenna by connecting pin 2

and pin 3.

GPIO selection, see

section 4.14, “Bluetooth

and Bluetooth Low

Energy”.

J5004 Bluetooth mode

selection or external

buck cost reduction

• VBT for both of Bluetooth

mode and BLE mode

• VIO18 for external buck

LDO cost reduction

Power selection, see

section 4.14, “Bluetooth

and Bluetooth Low

Energy”.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Jumpers Purpose Features Type

J5201 Active GPS antenna

control

• Controlled by power

rail GPS_VTCXO_SW

• Software control by net TX2

Power selection, see

section 4.2.4, “Powering

on an active GPS

antenna”.

J5202 Active GPS antenna

power source

• Controlled by power

rail GPS_VTCXO_SW

• Software control by

external buck LDO

Power selection, see

section 4.2.4, “Powering

on an active GPS

antenna”.

J6101

J6102

J6103

J6104

J6105

J6106

Display output by serial

jumpers or high speed

connector

• Select serial pin header by

connecting pin 2 and pin 3.

• Select MIPI display LCM

connecting pin 1 and pin 2.

GPIO selection, see

section 4.7, “LCM”.

R9001

R9002

R9007

R9008

Disable JTAG

interface when

R9002 and R9008

are mounted

Switch of JTAG interface

enable/disable on

keypad and camera

clusters

• Select JTAG interface enable

on keypad cluster if R9002

and R9007 are mounted.

• Select JTAG interface on

camera cluster is enabled if

R9001 and R9007 are

mounted.

Strap pin selection, see

section 4.15,

“Debugging”.

4.4. LEDs

The LED indicators (see Figure 12 and Figure 13) on the HDK are listed in Table 8.

Table 8. The LED indicators

USB power source

indicator

LED2001 indicates if the power is supplied to both LinkIt 2523 HDK and CMSIS-

DAP using USB connectors.

Buck power

indicator

LED2003 indicates if the power source is from the USB cable and the buck is

enabled.

CMSIS-DAP power

indicator

LED6601 indicates if the CMSIS-DAP power is on. This LED is not mounted on the

HDK v1.1. It can be soldered, if necessary.

eMMC/micro SD

power indicator

LED9201 indicates if the micro SD or eMMC power rail is enabled.

Core power

indicator

LED9206 indicates if the main power rail for LinkIt 2523 HDK core operates

successfully.

Display current sink

indicator

The only amber indicator LED9209 indicates if the backlight of the display panel is

on.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 12. LED positions for LED2001, LED2003 and LED6601

LED2001 LED6601 LED2003

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 13. LED positions for LED9201, LED9206 and LED9209

4.5. Buttons

The LinkIt 2523 HDK has four buttons that could support keypad functionality. To improve the pin usage on the

development board, the buttons could be designed with double key feature, as shown in Table 9.

The JTAG debug feature is assigned to the same set of pins as the buttons on the HDK. The pins are SW6502,

SW6503, SW6504 and SW6505 and they will be disabled when JTAG feature is enabled using one of the resistors

R9001 and R9007. The pin locations are shown in Figure 14.

To enable button or keypad functions on the HDK:

• Remove 10kΩ resistor from R9001.

• Mount 10kΩ resistor to R9002.

• Set GPIO 18, GPIO 20 and GPIO 22 to keypad function using the Easy PinMux Tool (EPT).

Table 9. Buttons and corresponding keypad functionality

System reset Push Reset to reset the HDK.

Power on Push PWR key to power on the HDK with a battery. There is no need to press this

button, if the system is powered on with a USB cable as it will automatically turn

on.

Volume up SW6502 button is assigned to control the volume up function.

Volume down SW6503 button is assigned to control the volume down function.

Enter SW6504 button is assigned to simulate ENTER key similar to the keypad.

LED9201 LED9209

LED9206

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Back SW6505 button is assigned to simulate BACK key similar to the keypad.

Figure 14. The positions of buttons, strap pin resistors, jumpers J1102 to J1104

4.6. GPIO

LinkIt 2523 GPIOs provide the following internal states: digital high and digital low, input and output. The pin

configuration is stored under project\mt2523_hdk\template\ept_config folder and the Easy PinMux Tool

is under PC_tool_Win folder. To learn more about the software registers and GPIO functionality, refer to the

LinkIt 2523 API Reference Manual.

MT2523 digital die eFuse, MT2523 real-time clock (RTC) source selection and pins assigned for user applications

are GPIO features that could be customized in user-defined applications.

4.6.1. MT2523 digital die eFuse

The MT2523 digital die eFuse function can be enabled to protect the binary image stored on the HDK, as shown

Table 10 and Figure 14.

Left to right

R9009, R9010

R9007, R9008

Left to right

SW6502, SW6503

SW6504, SW6505

Left to right

R9002, R9001

R9005, R9006

Top to bottom

J6102

J6105

J6106

J6103

J6104

J6101

Power Key

Reset

J1102

J1104 J1103

3 2 1

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Table 10. LinkIt 2523 board’s eFuse jumper pin settings (illustrated)

Enable or disable

eFuse

Set the jumper J1102 with 0Ω resistor to GND to disable the eFuse setting on the

HDK, as shown below.

Set the jumper J1102 with 0Ω resistor to power rail VIO28 to enable the eFuse

setting on the HDK, as shown below.

4.6.2. RTC source

The RTC source can be provided using either an internal or an external clock. Connect the jumper J1103 pin 2 and

pin 3 to provide 32.786kHz internal clock signal for BOM cost saving setting. Connect jumper J1103 pin 1 and pin 2

to select the clock source generated by external XTAL or built-in oscillator. Jumper J1104 should be synchronized

with the jumper J1103.

Set the jumper J1104 pins 1 and pin 2 to apply power saving mode, if 32.768kHz XTAL is mounted. Connect jumper

J1104 pins 2 and pin 3 for XTAL cost reduction. Table 11 provides details on how to configure the RTC jumper

settings for the HDK. The pin, jumper and resistor locations can be found in Figure 14.

Table 11. LinkIt 2523 board’s RTC jumper pin settings

Enable or disable

32.768kHz XTAL

Set the jumpers J1103 and J1104 with 0Ω resistors to supply 32.768kHz clock by

XTAL, as shown below.

Set the jumpers J1103 and J1104 with 0Ω resistors to supply 32.768kHz internal

clock, as shown below.

4.6.3. Pins reserved for user-defined applications

The camera and sensor daughterboard pin headers can be configured in user-defined applications. In addition,

LinkIt 2523 HDK provides two sets of two-pin header jumpers for I2C, UART, EINT and GPIO pins that are software

configurable using the EPT (see Figure 19). Pin assignment tables to implement multi-mode selections can be

found in sections 4.16.1, “UART ” and 4.16.2, “I2C ”.

4.7. LCM

The LinkIt 2523 HDK supports two types of display topology: MIPI DSI and serial. The MIPI interface provides a

maximum resolution of display of up to 320*320 pixels and it’s a hyper RGB 1.63 inch AMOLED display. The serial

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

interface is a 240*240 pixel graphical RGB 1.6 inch thin film transistor LCD. The connector CON6102 on the HDK is

reserved for the serial display LCM.

The HDK supports only one display LCM at a time. The capacitive touch screen is enabled on both displays.

The onboard MIPI LCM or CON6102 supports touch panel connected to the I2C interface. The pin definition of the

connectors can be found in Table 13, with the path selection resistor locations shown in Figure 14. Resistors J6101

to J6106 are designed for onboard LCM and serial pin header switching. Table 13 presents jumper settings for

different use case scenarios.

For MIPI LCM display, users should connect the connectors CON501 and CON502 (located behind CON501 on the

back of the board) for touch and display functions; for serial display, the set of CON401 and CON402 should be

used.

Jumpers J401 and J402 enable the current sink, and jumpers J201, J202, J203 are reserved for external current sink

IC to power up the serial display backlight. Only one type of backlight source is needed at a time. All descriptions of

backlight source jumpers and path selections are shown in Table 12.

Figure 15. LCM display module and backlight jumper locations

Table 12. LCM backlight source selection settings (illustrated)

LCM backlight boost

source

Set the jumpers J201, J202 and J203 to activate the external current sink IC for

backlight. Remove the jumpers J401 and J402.

Remove the jumpers J201, J202 and J203 to deactivate current IC and set

jumpers J401 and J402 for backlight source through the current sink path.

CON501

J201

Up: J203

Down: J202

CON402

Left: J402

Right: J401

CON401

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

LCM current sink source Set the jumpers J401, J402 to activate the current sink and remove jumpers

J201, J202 and J203 to disable the external current sink IC.

Remove the jumpers J401, J402 to deactivate the current sink and set jumpers

J201, J202 and J203 to activate the external current sink IC.

Table 13. LinkIt 2523 HDK display peripheral jumper pin settings (illustrated)

LCM display reset Set the jumper J6101 with 0Ω resistor to connect the LCM reset signal to

onboard LCM, as shown below.

Set the jumper J6101 with 0Ω resistor to connect the LCM reset signal to serial

pin header, as shown below.

LCM display chip select Set the jumper J6102 with 0Ω resistor to connect the LCM SCE signal to

onboard LCM, as shown below.

Set the jumper J6102 with 0Ω resistor to connect the LCM SCE signal to

serial pin header, as shown below.

LCM display clock

Set the jumper J6103 with 0Ω resistor to connect the LCM SCK signal to

onboard LCM, as shown below.

Set the jumper J6103 with 0Ω resistor to connect the LCM SCK signal to serial

pin header, as shown below.

LCM display tearing Set the jumper J6104 with 0Ω resistor to connect the LCM PTE signal to

onboard LCM, as shown below.

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Set the jumper J6104 with 0Ω resistor to connect the LCM PTE signal to serial

pin header, as shown below.

LCM display data Set the jumper J6105 with 0Ω resistor to connect the LCM SDA signal to

onboard LCM, as shown below.

Set the jumper J6105 with 0Ω resistor to connect the LCM SDA signal to serial

pin header, as shown below.

LCM display address Set the jumper J6106 with 0Ω resistor to connect the LCM SA0 signal to

onboard LCM, as shown below.

Set the jumper J6106 with 0Ω resistor to connect the LCM SA0 signal to serial

pin header, as shown below.

4.8. Audio

The LinkIt 2523 HDK is equipped with a loud speaker to enable audio playback. To enable the speaker, configure

the GPIO45 as an output using the Easy PinMux Tool. The LinkIt 2523 HDK also supports full duplex to develop

audio receive and speak at the same time for real-time development. The HDK is using the I2S interface with

master and slave with a sampling rate of 48Hz and bit width of up to 16 bits for stereo.

4.9. Speech

There is one analog microphone on the LinkIt 2523 HDK for audio recording. The audio jack also supports the

OMTP standard for recording. The locations of the microphone and audio jack are shown in Figure 8.

4.10. MSDC

The LinkIt 2523 HDK supports any micro SD card of FAT32 format to read and write data. The micro-SD card plug-

in is detected at GPIO10 with various voltage levels. To power on the eMMC, the power rail should be connected

to the power rail VMC, which means DVDD33_VMC should be connected to VMC using R1113.

The eMMC feature is shared with micro SD card by configuring the pin jumper settings, see Table 14 and Figure 16.

Table 14. Jumper settings (illustrated) for storage options

Storage data line 0

Set the jumper J1001 pins to assign the storage data line 0 to micro SD, as shown

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

below.

Set the jumper J1001 pins to assign the storage data line 0 to eMMC, as shown

below.

Storage data line 1

Set the jumper J1002 pins to assign the storage data line 1 to micro SD, as shown

below.

Set the jumper J1002 pins to assign the storage data line 1 to eMMC, as shown

below.

Storage data line 2 Set the jumper J1003 pins to assign the storage data line 2 to micro SD, as shown

below.

Set the jumper J1003 pins to assign the storage data line 2 to eMMC, as shown

below.

Storage data line 3 Set the jumper J1004 pins to assign the storage data line 3 to micro SD, as shown

below.

Set the jumper J1004 pins to assign the storage data line 3 to eMMC, as shown

below.

Storage clock line

Set the jumper J1005 pins to assign the storage clock line to micro SD, as shown

below.

Set the jumper J1005 pins to assign the storage clock line to eMMC, as shown

below.

Storage command

Set the jumper J1006 pins to assign the storage command line to micro SD, as

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

line shown below.

Set the jumper J1006 pins to assign the storage command line to eMMC, as shown

below.

Figure 16. Jumpers J1001 to J1006 for storage options

4.11. Camera

Connect the camera daughterboard (see Figure 23) to the camera connector to enable the camera. The sensor

daughterboard features are shared with camera using a jumper (see Table 15 and Figure 17). The LinkIt 2523 HDK

supports serial interface cameras.

Top to Bottom

J1001

J1002

J1003

J1004

J1005

J1006

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 17. Jumper pin locations of J1007 to J1012, J1015

Table 15. Jumper pin settings (illustrated) for camera and sensor daughterboards

Top to Bottom

J1010

J1008

J1007

J1011

J1015

J1012

J1009

3 2 1

Camera power down or

sensor daughterboard chip

select

Set the jumper J1007 to connect the sensor daughterboard using SPI chip

select, as shown below.

Set the jumper J1007 to connect camera daughterboard using camera

power down, as shown below.

Camera reset or sensor

board power down

Set the jumper J1008 to connect the sensor daughterboard using the GPIO,

as shown below.

Set the jumper J1008 to connect the camera daughterboard using the

camera reset, as shown below.

Camera data line 1 or

sensor daughterboard

data output

Set the jumper J1009 to connect the sensor daughterboard using the SPI

data output, as shown below.

Set the jumper J1009 to connect the camera daughterboard using data line

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4.12.

LinkI

2523

HDK

has

two

USB

conn

ector

s, 25

USB

see

secti

4.16.

10,

“USB

2.0

high

spee

conn

ector”

and

USB

see

secti

4.16.

11,

“CM

SIS-

DAP

USB

1.1

full

spee

conn

ector

”, as shown in Figure 3. The 2523 USB connector is used to flash the board with the LinkIt 2523 Flash Tool.

The MK20 USB is for CMSIS-DAP USB and serial port communication and setting up the board as a mass storage

device. The CMSIS-DAP is the debugging user interface for embedded devices. The mass storage is for flashing the

LinkIt 2523 using the SWD interface. The user can drag and drop the LinkIt 2523 binary file and the FreeRTOS

1, as shown below.

Camera data line 0 or

sensor daughterboard

clock

Set the jumper J1010 to connect the sensor daughterboard using the SPI

clock, as shown below.

Set the jumper J1010 to connect the camera daughterboard using data line

0, as shown below.

Camera pixel clock input

or sensor daughterboard

data input

Set the jumper J1011 to connect the sensor daughterboard using the SPI

data input, as shown below.

Set the jumper J1011 to the camera daughterboard using pixel clock input,

as shown below.

Camera pixel clock output

or sensor daughterboard

reset

Set the jumper J1012 to connect the sensor daughterboard connection

using the GPIO, as shown below.

Set the jumper J1012 to connect the camera daughterboard using the

camera pixel clock output or data line 0, as shown below.

Camera pixel clock output

/ camera data line 2

Set the jumper J1015 to connect the camera daughterboard using the

camera pixel clock output, as shown below.

Set the jumper J1015 to connect the camera daughterboard using the

camera data line 2, as shown below.

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

binary file to the HDK operating as a mass storage device to flash the image directly. The serial port also supports

UART2 connectivity on the LinkIt 2523 HDK.

The maximum charging current is 1.5A at 5V DC for the LinkIt 2523 HDK’s internal charger. The USB power source

is passing through the jumper J2001 on the HDK.

4.13. GNSS (LinkIt 2523G only)

The LinkIt 2523G HDK is equipped with multi-GNSS chip with a built-in multiband onboard antenna with an

operating range of 1.5GHz-2.4GHz. Set the jumper J5003 to receive Bluetooth, Bluetooth Low Energy and GNSS

signal by an onboard antenna or SMA connector. It’s convenient to use the onboard antenna for direct line of sight

signals, where the environment conditions are clear for satellite visibility and location estimation. It’s

recommended to use the passive onboard antenna for the satellite signals with signal-noise-ratio (SNR) greater

than 40dB. If users would like to validate the satellite performance, please connect external antenna to the

GNSS/BT SMA header shown in Figure 8.

The HDK supports GPS, GLONASS, BeiDou, Galileo, QZSS and SBAS standards with optimized power consumption

and extended battery life. Onboard antenna and SMA connector path settings are described in section 4.14,

“Bluetooth and Bluetooth Low Energy”.

4.14. Bluetooth and Bluetooth Low Energy

The LinkIt 2523 HDK supports Bluetooth 4.2 for Bluetooth core specification updates to provide an improved speed

and reliable data transfer. The transfer speed is up to 2.5 times faster and the protocol stack size is smaller.

Bluetooth 4.2 also consumes less power. It’s backward compatible with Bluetooth 4.0 and 4.1 and has adopted

Bluetooth core versions starting from 1.1 with Bluetooth BR/EDR.

There are three options to power up the HDK with Bluetooth, Bluetooth LE and external buck power supply. The

data transfer is through an onboard antenna or an external antenna with an SMA connector. The SMA connector

SMA5002 could be connected with an external antenna cable for Bluetooth and Bluetooth LE signal strength

validation.

Some of the jumpers are designed to switch between the RF signal and Bluetooth mode. Details on switching

between the modes are presented in Table 16 with the jumpers shown in Figure 18.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 18. Positions of J1101 and Bluetooth antenna path selection from J5001 to J5004, U1101, CON2101 and

resistor R5005

Table 16. Jumper pin settings (illustrated) for Bluetooth

Bluetooth external

buck activated

Connect the jumper J1101 pin 1 and pin 2 to set the external buck U1101

enabled by power rail VIO28, as shown below.

Connect the jumper J1101 pin 1 and pin 2 to set the external buck U1101

enabled by ROM, as shown below.

Bluetooth external Connect the jumper J5001 pins with 0Ω resistor to set the Bluetooth clock to

the clock signal generated by 26MHz XTAL, as shown below.

BAT CON (CON2101)

Connector

U1101 J1101

J5001

1 2 3 1

Left: J5004

Right: J5002

J5003

3 2 1

R5005

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

clock source

Connect the jumper J5001 pins with 0Ω resistor to set the Bluetooth clock to

an external clock source, as shown below.

Bluetooth power input Connect the jumper J5002 pins with 0Ω resistor to set the Bluetooth main

power source to VBT, as shown below.

Connect the jumper J5002 pins with 0Ω resistor to set the Bluetooth main

power source to VIO18, as shown below.

Bluetooth antenna

path

Connect the jumper J5003 pins with 0Ω resistor to select the antenna signal

uplink and downlink paths on an onboard antenna, as shown below.

Connect the jumper J5003 pins with 0Ω resistor to select the antenna signal

uplink and downlink path using SMA connector, as shown below.

Bluetooth I/O power

input

Connect the jumper J5004 pins with 0Ω resistor to set the Bluetooth I/O power

source to VBT, as shown below.

Connect the jumper J5004 pins with 0Ω resistor to set the Bluetooth I/O power

source to VIO18, as shown below.

Mount the 0Ω resistor R5005 and disconnect the jumper J5004 with 0Ω

resistor to set the Bluetooth main power source to external buck LDO for low

power consumption.

4.15. Debugging

To enable debugging on the LinkIt 2523 HDK, activate the JTAG interface using Easy PinMux Tool. Switch from the

camera operation mode to debugging mode using JTAG interface by replacing the output pins in a range from GPIO

24 to GPIO 28 in Easy PinMux Tool from camera function to JTAG interface. The debugging log can be captured

1 2 3

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

through the same jumpers, if the JTAG interface is activated. To capture logs by JTAG formal pin assignment

connector, mount 0Ω resistors on footprint R9016, R9017, R9018, R9019, R9020, R9021 and R9023, then the

connector CON9002 will be ready for JTAG signal transmission.

Resistors from R9001, R9002, R9007 and R9008 are the strap pins to adjust the feature settings, such as JTAG

debug interface output cluster, as shown in Table 17. LinkIt 2523 HDK also provides the I2C and UART pin headers

to receive system log or connect to external components directly, as shown in Figure 19. Both Figure 14 and Figure

19 provide the detailed locations of the pins.

Table 17. Resistor selections

JTAG function

activated

Mount 10kΩ resistors R9002 and R9008 to deactivate the JTAG signals.

Mount 10kΩ resistors R9001 and R9007 to activate the JTAG signals through the

GPIO pins in a range from GPIO 24 to GPIO 28 to interface the camera pin

headers.

Mount 10kΩ resistors R9001 and R9008 to activate the JTAG signals through the

GPIO of keypad cluster. Apply this setting to activate the MK20 JTAG connector.

Left to Right

I2C pins –SCL0, SDA0

UART pins –UTXD0, URXD0

GND pins –GND, GND

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 19. The positions of UART and I2C pin header for debugging facilitation

4.16. Connectors

The LinkIt 2523 HDK supports connectors to capture a signal, plug-in an external component, update an image and

more. This section provides details and pin definitions for the connectors.

4.16.1. UART pin header

The UART pin header is reserved for user applications that can be configured for different modes, such as UART,

GPIO and EINT (see Figure 19).

4.16.2. I2C pin header

The I2C pin header is reserved for user applications that can be configured for different modes, such as GPIO and

I2C (see Figure 19).

Note, the pull-up resistors are needed for the I2C interface to provide the sufficient driving power to the I2C clock

and data lines. The two pull-up resistors R1003 and R1002 are already installed for the I2C interface, as shown in

Figure 21.

4.16.3. Battery connector CON2102

The pin configuration of the battery connector CON2101 is shown in Table 18.

Table 18. Battery connector CON2101 (see Figure 18)

Pin number Description Pin number Description

1 VBAT 2 VBAT

3 NC 4 NTC

GND

4.16.4. Push-Push micro SD tray CON4101

The push-push micro SD tray is able to read micro SD card directly to conveniently provide data from the storage.

Connector details are shown in Table 19. The connector location is shown in Figure 10 and the schematic view is in

Figure 20.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 20. Micro-SD card holder CON4101

Table 19. Micro-SD tray

Pin number Description Pin number Description

Data 2

Data 3

3 CMD 4 VDD

5 CLK 6 GND

Data 0

Data 1

9 GND 10 GND

GND

13 GND 14 GND

Card detect

4.16.5. RTC battery connector BAT5201

The coin battery connector is located at the bottom of the LinkIt 2523 HDK. The RTC saves the satellite information

even when the system is powered off, see Figure 9.

4.16.6. OMTP standard audio connector CON6001

Audio jack pin assignment follows the OMTP standard and supports audio playback and microphone features. It

enables to record speech and playback using the Audio Jack (see Figure 8), as described in Table 20.

Table 20. OMTP Audio jack connector

Pin number Description Pin number Description

1 GND 2 MIC

Headset left

Headset right

5 Headset plug-in detection 6 NC

4.16.7. Serial display connector CON6102

CON6102 connector is mounted for external serial interface LCM daughterboard, as shown in Figure 21 and

described in Table 21. You can only operate one LCM display at a time, make sure to change the signal path by

resistors J6101 to J6106.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 21. Serial LCM daughterboard’s connector and I2C pull-up resistors (R1002, R1003)

Table 21. LCM serial display daughterboard connector

Pin number Description Pin number Description

LCM backlight current sink

VIO18

LCM backlight PWM

VIO28

5 LPTE 6 VIO28

LSDA

I2C_SCL

9 LSA0 10 I2C_SDA

LSCK

GND

13 LSCE_B 14 Touch panel EINT

15 LSRSTB 16 Touch panel reset pin

VBAT

GND

19 VBAT 20 GND

Serial LCM

(CON6102)

Up: R1002

Down: R1003

LCM Display Path Selection

J6101 to J6106

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

4.16.8. Camera daughterboard connector CON6201

Connect the camera daughterboard to connector CON6201 (see Figure 22 and Figure 23) to capture images. The

direction of camera module is to the left, which means the camera module on daughterboard should be toward

USB connectors. The pin assignments can be customized for user-defined applications (see Table 22), if no camera

daughterboard is available.

Figure 22. Serial camera daughterboard CON6201

Figure 23. The position of the camera daughterboard pin headers

Table 22. Serial camera daughterboard connector CON6201

number

GPI

O #

Power

domai

Descri

ption

Flexible

mode1

Flexible

mode2

Flexible

mode3

Flexible

mode4

Flexible

mode5

Flexible

mode6

Flexible

mode8

Flexible

mode9

1 VBAT VBAT

2 24 DVDD_

VIO_A

CMRS

GPIO LSRSTB CLKO EINT GPCOU

NTER

JTDI MC1_D

3 VCAMA VCAM

4 25 DVDD_

VIO_A

CMPD

GPIO LSCK1 DAICLK MA_SPI

2_CS

MA_SPI

3_CS

JTMS MC1_D

SLV_SPI

0_CS

5 GND

DVDD_

CMCS

GPIO

LPTE

CMCSD

EINT

CON6201

1 2

13 14

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

number

GPI

O #

Power

domai

Descri

ption

Flexible

mode1

Flexible

mode2

Flexible

mode3

Flexible

mode4

Flexible

mode5

Flexible

mode6

Flexible

mode8

Flexible

mode9

VIO_A

7 37 DVDD_

VIO_A

I2C_S

DA0

GPIO I2C_SDA

8 28 DVDD_

VIO_A

CMMC

GPIO LSA0DA

DAISYN

MA_SPI

2_MISO

MA_SPI

3_MISO

JTDO MC1_D

SLV_SPI

0_MISO

9 36 DVDD_

VIO_A

I2C_SC

GPIO I2C_SCL

10 29 DVDD_

VIO_A

CMCS

GPIO LPTE CMCSK EINT

11 GND

12 27 DVDD_

VIO_A

CMCS

GPIO LSDA1 DAIPCM

OUT

MA_SPI

2_MOSI

MA_SPI

3_MOSI

JTRSTB MC1_CK SLV_SPI

0_MOSI

13 GND

14 26 DVDD_

VIO_A

CMCS

GPIO LSCE_B1 DAIPCM

MA_SPI

2_SCK

MA_SPI

3_SCK

JTCK MC1_C

SLV_SPI

0_SCK

4.16.9. Sensor daughterboard connector CON6301

Connect the sensor daughterboard to CON6301. The pin assignments can be customized in user-defined

applications, if sensor daughterboard is unplugged, as described in Table 23 and Figure 26.

Table 23. Sensor daughterboard connector CON6301

number

GPI

O #

Power

domain

Descript

ion

Flexibl

mode

Flexible

mode2

Flexible

mode3

Flexible

mode4

Flexible

mode5

Flexible

mode6

Flexible

mode8

Flexible

mode9

1 VBAT VBAT

VA28

3 VIO28 VIO28

VIO18

5 GND

GND

7 37 DVDD_

VIO_A

I2C_SDA

GPIO EINT MC1_D

8 28 DVDD_

VIO_A

MA_SPI

3_MISO

CMMC

GPIO LSA0DA

DAISYN

MA_SPI

2_MISO

JTDO MC1_D

SLV_SPI

0_MISO

9 36 DVDD_

VIO_A

I2C_SCL

GPIO EINT MC1_D

10 27 DVDD_

VIO_A

MA_SPI

3_MOSI

CMCS

GPIO LSDA1 DAIPCM

OUT

MA_SPI

2_MOSI

JTRSTB MC1_CK SLV_SPI

0_MOSI

11 GND

12 26 DVDD_

VIO_A

MA_SPI

3_SCK

CMCS

GPIO LSCE_B1 DAIPCM

MA_SPI

2_SCK

JTCK MC1_C

SLV_SPI

0_SCK

13 48 DVDD_

GPO

MA_SPI

3_CS1

GPO

14 25 DVDD_

VIO_A

MA_SPI

3_CS0

CMPD

GPIO LSCK1 DAICLK MA_SPI

2_CS

JTMS MC1_D

SLV_SPI

0_CS

15 4 DVDD_

VIO_A

EINT GPIO URXD1 MC1_CK MA_SPI

0_CS

SLA_ED

IDO

GND

17 5 DVDD_

VIO_A

EINT GPIO UTXD1 MC1_C

MA_SPI

0_SCK

SLA_ED

IDI

18 7 DVDD_

VIO_A

EINT GPIO UTXD2 MC1_D

MA_SPI

0_MISO

SLA_ED

ICK

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

number

GPI

O #

Power

domain

Descript

ion

Flexibl

mode

Flexible

mode2

Flexible

mode3

Flexible

mode4

Flexible

mode5

Flexible

mode6

Flexible

mode8

Flexible

mode9

19 6 DVDD_

VIO_A

EINT GPIO URXD2 MC1_D

MA_SPI

0_MOSI

SLA_ED

IWS

20 29 DVDD_

VIO_A

EINT CMCS

GPIO LPTE CMCSD

MC1_D

BT_RGPI

21 13 DVDD_

VIO_C

SEN_32

K_BB

GPIO EINT CLKO MA_EDI

MA_SPI

1_MOSI

PWM2 SLA_EDI

22 24 DVDD_

VIO_A

GPIO EINT MC1_D

SLA_EDI

UTXD2 BT_BUC

K_EN_H

MA_SPI

0_MISO

GND

24 GND

4.16.10. USB 2.0 high speed connector

The 2523 USB connector (see Figure 3 and Figure 24) follows USB 2.0 high-speed standard to communicate with

other compatible devices. It’s used for charging and system power supply. The 5V power rail is also connected

with MK20 USB. The connector pins are described in Table 24.

Figure 24. High-speed USB2.0 connector

Table 24.The HDK’s high speed USB 2.0 connector

Pin number Description Pin number Description

VUSB_BB

D-

3 D+ 4 NC

GND

4.16.11. CMSIS-DAP USB 1.1 full speed connector

Apply the MK20 USB connector (see Figure 25 and Figure 26) to update the binary on the HDK using CMSIS-DAP

without other tools. The HDK operates as a removable mass storage, if the MK20 USB is used for connecting the

device to the PC.

Figure 25. CMSIS-DAP USB 1.1 full speed connector

The connector pin details are described in Table 25.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Table 25. CMSIS-DAP USB full speed connector

Pin number Description Pin number Description

1 VUSB_DAP 2 D-

D+

GND

4.16.12. MK20 JTAG connector

MK20 JTAG connector is used to provide a factory update of the MK20 bootloader (see Figure 26 and

Table 26). No further modification can be applied.

Figure 26. MK20 JTAG connector, sensor daughterboard connector and PSRAM power switch J1113

The connector pin details are described in

MK20 JTAG

J1113

1 2 3

Sensor

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Table 26.

Table 26. MK20 JTAG connector pin definition

Pin number Description Pin number Description

VIO28

SDA_JTAG_TRST

GND

5 SDA_JTAG_TDI 6 GND

SDA_JTAG_TMS

GND

SDA_JTAG_TCLK

GND

13 SDA_JTAG_TDO 14 GND

15 - 16 GND

GND

19 - 20 GND

4.16.13. eMMC / micro SD holder jumpers

There are six jumpers (J1001 to J1006) (see Figure 16) dedicated for eMMC or micro SD card, as shown in Table 27.

If the assigned jumpers are idle, they can be customized for other applications. Use only the middle pin of those

jumpers. The pins are sorted from up to down starting from 1 to 6.

Table 27. eMMC/micro SD jumpers

order

from

upside

GPI

O #

Descr

iption

Flexible

mode0

Flexible

mode1

Flexible

mode2

Flexible

mode3

Flexible

mode4

Flexible

mode5

Flexible

mode6

Flexible

mode9

1 32 MCD

GPIO32 SLV_SPI0

_CS

EINT13 PWM2 DAISYNC MC0_D

MA_SPI

3_B_CS

2 33 MCD

GPIO33 SLV_SPI0

_SCK

EINT14 PWM3 DAIPCMI

MC0_D

MA_SPI

3_B_SC

3 34 MCD

GPIO34 SLV_SPI0

_MOSI

EINT15 PWM4 DAICLK MC0_D

MA_SPI

3_B_M

OSI

4 35 MCD

GPIO35 SLV_SPI0

_MISO

EINT3 PWM5 DAIPCM

OUT

MC0_D

CLKO2 MA_SPI

3_B_MI

5 30 MCCK GPIO30 SCL0 EINT11 PWM0 URXD1 MC0_C

SCL2

6 31 MCC

GPIO31 SDA0 EINT12 PWM1 UTXD1 MC0_C

SDA2

4.16.14. JTAG connector CON9002

The connector CON9002 provides the standard JTAG connection. CON9002 could be enabled using the resistors

R9011 to R9021 and R9023 (see Figure 9 and Figure 8).

Table 28. JTAG connector CON9002

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Pin number Description Pin number Description

DVDD_VIO_A

3 JTRST 4 GND

JTDI

GND

7 JTMS 8 GND

9 JTCK 10 GND

GND

13 JTDO 14 GND

SYSRSTB_IN

GND

17 NC 18 GND

GND

Figure 27. JTAG connector CON9002 pin definition

4.16.15. SMA connectors

There are two SMA headers to connect to the external antennas. The GNSS/BT SMA is used to connect to

GNSS/Bluetooth antenna. The BT SMA could be connected to a Bluetooth antenna. The connectors are shown in

Figure 8. To activate the BT SMA connector, move 0Ω resistor from R5010 to R5011.

4.16.16. External component connectivity support

This section provides the detailed pin layout for sensor and daughterboard connectors and GPIO pins, see Figure

28 and Table 29.

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 28. LinkIt 2523 HDK extension connectors

Table 29. GPIO pin functionalities

Right to Left

J1010

J1008

J1007

J1011

J1015

J1012

J1009

Right to Left

J1001 to J1006

Ref

Left

Right

GND

GPIO24

GPIO14

GPIO29

GPIO6

GPIO7

GPIO5

GND

GPIO4

GPIO25

GPO48

GPIO26

GND

GPIO27

GPIO36

GPIO28

GPIO37

GND

VIO18

VIO28

VA28

VBAT

R1L1

R12L12

Ref

GPIO #

J1001

GPIO32

J1002

GPIO33

J1003

GPIO34

J1004

GPIO35

J1005

GPIO30

J1006

GPIO31

Ref

GPIO #

J1010

GPIO26

J1008

GPIO24

J1007

GPIO25

J1011

GPIO28

J1015

GPIO29

J1012

GPIO29

J1009

GPIO27

CON6102

Sensor

Ref

GPIO #

Ref

ISINK

VIO18

LCM_B

LPWM

VIO28

GPIO43

VIO28

GPIO41

GPIO36

GPIO42

GPIO37

GPIO40

GND

GPIO39

GPIO15

GPIO38

GPO47

VBAT

GND

VBAT

GND

Pin alias Name Direction Description

GPIO4 MC[1]_CK O MSDC clock, output

GPIO[4] I/O General purpose input, output

SLA_EDIDO O Slave I2S data output

EINT[3] I External interrupt

URXD[1] I UART receive port, input

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

MA_SPI[0]_CS O SPI master chip select

GPIO5 MC[1]_CM0 O MSDC command, output

GPIO[5] I/O General purpose input, output

SLA_EDIDI I Slave I2S data input

EINT[4] I External interrupt

UTXD[1] O UART transmit port, output

MA_SPI[0]_SCK O SPI master clock output

GPIO6 MC[1]_DA0 I/O MSDC data input, output

GPIO[6] I/O General purpose input, output

SLA_EDIWS I Slave I2S frame clock input

EINT[5] I External interrupt

URXD[2] I UART receive port, input

MA_SPI[0]_MOSI O SPI master MOSI

GPIO7 MC[1]_DA1 I/O MSDC data input, output

GPIO[7] I/O General purpose input, output

SLA_EDICK I Slave I2S bit clock input

EINT[6] I External interrupt

UTXD[2] O UART transmit port, output

MA_SPI[0]_MISO I SPI master MISO

BT_BUCK_EN_HW O External buck enable pin, output

GPIO14 EINT[12] I External interrupt

CLKO[4] O Clock output

MA_EDICK O Master I2S bit clock output

GPIO[14] I/O General purpose input, output

PWM[3] O Pulse width modulation in 3.3V

MA_SPI[1]_MISO I SPI master MISO

SLA_EDICK I Slave I2S bit clock output

GPIO24 CMRST O Serial camera reset, output

LSRSTB O Serial display reset, output

CLKO[1] O Clock output

GPIO[24] I/O General purpose input, output

EINT[9] I External interrupt

GPCOUNTER_0 I General interrupt counter, input

JTDI I JTAG data input

MC[1]_DA3 I/O MSDC data input, output

GPIO25 CMPDN O Serial camera power down, output

LSCK1 O Serial display clock, output

DAICLK O Digital audio interface clock, output

GPIO[26] I/O General purpose input, output

MA_SPI[2]_CS O SPI master chip select

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

MA_SPI[3]_CS O SPI master chip select

JTMS O JTAG mode selection, input

MC[1]_DA2 I/O MSDC data input, output

SLV_SPI[0]_CS I SPI slave chip select

GPIO26 CMCSD0 I Camera sensor data 0, input

LSCE_B1 O Serial display chip select, output

DAIPCMIN I Digital audio interface data input

GPIO[26] I/O General purpose input, output

MA_SPI[2]_SCK O SPI master clock output

MA_SPI[3]_SCK O SPI master clock output

JTCK O JTAG clock output

MC[1]_CM0 O MSDC command, output

SLV_SPI[0]_SCK I SPI slave clock input

GPIO27 CMCSD1 I Camera sensor data 1, input

LSDA1 O Serial display data, output

DAIPCMOUT O Digital audio interface data output

GPIO[27] I/O General purpose input, output

MA_SPI[2]_MOSI O SPI master data output

MA_SPI[3]_MOSI O SPI master data output

JTRSTB O JTAG clock reset, output

MC[1]_CK O MSDC clock output

SLV_SPI[0]_MOSI I SPI slave data input

GPIO28 CMMCLK O Camera main clock, output

LSA0DA1 O Serial display address, output

DAISYNC O DAI frame synchronization output

GPIO[28] I/O General purpose input, output

MA_SPI[2]_MISO I SPI master data input

MA_SPI[3]_MISO I SPI master data input

JTDO O JTAG data output

MC[1]_DA0 I/O MSDC data input, output

SLV_SPI[0]_MISO O SPI slave data output

GPIO29 CMCSK I Camera sensor clock, input

LPTE O Serial display tearing signal, output

CMCSD2 I Camera sensor data 2, input

GPIO[29] I/O General purpose input, output

EINT[10] I External interrupt

MC[1]_DA1 I/O MSDC data input, output

GPIO30 SCL[0] O I2C clock output

EINT[11] I External interrupt

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

URXD[1] I UART receive port, input

MC[0]_CK O MSDC clock, output

GPIO[30] I/O General purpose input, output

SCL[2] O I2C clock output

PWM[0] O Pulse width modulation

GPIO31 SDA[0] I/O I2C data input, output

EINT[12] I External interrupt

UTXD[1] O UART transmit port, output

MC[0]_CM0 O MSDC command, output

GPIO[31] I/O General purpose input, output

SDA[2] I/O I2C data input, output

PWM[1] O Pulse width modulation

GPIO32 SLV_SPI[0]_CS I SPI slave chip select

EINT[13] I External interrupt

GPIO[32] I/O General purpose input, output

PWM[2] O Pulse width modulation

DAISYNC O DAI frame synchronization output

MC[0]_DA0 I/O MSDC data input, output

MA_SPI[3]_CS O SPI master chip select

GPIO33 SLV_SPI0_SCK I SPI slave clock input

EINT[14] I External interrupt

GPIO[33] I/O General purpose input, output

PWM[3] O Pulse width modulation

DAIPCMIN I Digital audio interface data input

MC[0]_DA1 I/O MSDC data input, output

MA_SPI[3]_SCK O SPI master clock output

GPIO34 SLV_SPI0_MOSI I SPI slave data input

EINT[15] I External interrupt

GPIO[34] I/O General purpose input, output

PWM[4] O Pulse-width-modulated output

DAICLK O Digital audio interface clock, output

MC[0]_DA2 I/O MSDC data input, output

MA_SPI[3]_MOSI O SPI master data output

GPIO35 SLV_SPI0_MISO O SPI slave data output

EINT[3] I External interrupt

GPIO[35] I/O General purpose input, output

PWM[5] O Pulse-width-modulated output

DAIPCMOUT O Digital audio interface data output

MC[0]_DA3 I/O MSDC data input, output

MA_SPI[3]_MISO I SPI master data input

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

CLKO[2] O Clock output

GPIO36 SCL[0] O I2C clock output

GPIO[36] I/O General purpose input, output

SCL[1] O I2C clock output

GPIO37 SDA[0] I/O I2C data input, output

GPIO[37] I/O General purpose input, output

SDA[1] I/O I2C data input, output

GPIO38 LSRSTB O Serial display reset, output

CMRST O Serial camera reset, output

GPIO[38] I/O General purpose input, output

CLKO[3] O Clock output

SFSWP O Serial Flash write protect

SCL[1] O I2C clock output

GPIO39 LSCE_B0 O Serial display chip select, output

CMCSD0 I Camera sensor data 0, input

GPIO[39] I/O General purpose input, output

CLKO[4] O Clock output

SFSCS0 O Serial Flash chip select 0

SCL[1] O I2C clock output

MA_SPI[2]_CS O SPI master chip select

EINT[4] I External interrupt

GPIO40 LSCK0 O Serial display clock, output

CMPDN O Serial camera power down, output

GPIO[40] I/O General purpose input, output

SFSHOLD O Serial Flash data hold

MA_SPI[2]_SCK O SPI master clock output

GPIO41 LSDA0 O Serial display data, output

CMCSD1 I Camera sensor data 1, input

GPIO[41] I/O General purpose input, output

SFSCK O Serial Flash clock

SDA[1] I/O I2C data input, output

MA_SPI[2]_MOSI O SPI master data output

EINT[4] I External interrupt

GPIO42 LSA0DA0 O Serial display interface address, output

LSCE1_B0 O Serial display chip select, output

GPIO[42] I/O General purpose input, output

CMMCLK O Camera main clock, output

SFSOUT I Serial Flash data output

CLKO[5] O Clock output

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

MA_SPI[2]_MISO I SPI master data input

GPIO43 LPTE O Serial display tearing signal, output

CMCSK I Camera sensor clock, input

GPIO[43] I/O General purpose input, output

CMCSD2 I Camera sensor data 2, input

SFSIN I Serial Flash data input

SDA[1] I/O I2C data input, output

EINT[6] I External interrupt

LinkIt 2523 HDK v11 User's Guide

Page 49 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

5. Schematics (V11)

GPS

LNA DiplexerSAW

Connectivity ANT

Reset

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

01_Block Diagram

199Thursday , March 31, 2016

MK20DX128

Project : MT2523

REF_SCH TOP LEVEL

UART

SWD

AU_VIN1

Analog MIC

Audio Jack

HP_OUT

eMMC

Audio

Speech

Charger

RTC 32K

Battery

UART

SDIO

UART

Debug port

MT2523G

JTAG

USB HS Micro USB

USB HS

HSP_OUT

AU_VIN0

Camera IF

Camera DTB

CAM (Serial)

26M_BB

32K_BB

I2C

LCM+CTP DTB

VB AT

BJT

XTAL

Serial Display serial

interface

I2C

VBUS

I2C

Sensors DTB

I2C

SPI

EINT

PMU

SPI

MIPI

Class-D

SPK Amp.

SPK_OUT

EINT

Micro SD

UART

JTAG

Bluetooth

SDIO

SWD

LinkIt 2523 HDK v11 User's Guide

Page 50 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 29. Block diagram

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

02_I2C_ID_Overview

299Thursday , March 31, 2016

I2C Spec.

400 Kbps

I2C

Rear Camera Rear camera (GC0310) I2C address: 0X21 (Write:0x42, Read:0x43)

Yes.

Function

I2C0

I2C Slave Address (7-bit mode)

400 Kbps

Budgeted Timing

Touch IC Yes. TP (GT9137) I2C address: 0X24 (Write:0x28, Read:0x29)

LinkIt 2523 HDK v11 User's Guide

Page 51 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 30. I2C ID

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

04_PMU_SPEC

499Thursday , March 31, 2016

I_max(mA)

VIO28

VIO18

150

2.8/1.8

2.8

100

150

Analog LDO VA28

VCAMA

230

100

2.8

1.8

3.3

1.8/2.8/3/3.3

2.5

VUSB

VMC

VIBR

1.8

1.86/3.0/3.3

VA18

VSF

200

Digital LDO

1.8 5

Driver ISINK

Digital LDO

0.6~1.3

VDIG18

100

150

200

Vout(V)

Vcore

VBT

1.3/1.5/1.8/2/

2.5/2.8/3/3.3

Buck

1X(96mA;48mA/0.25V)

Vcore 0.6~1.3

LinkIt 2523 HDK v11 User's Guide

Page 52 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 31. PMU_SPEC

Note: 10-1

J1018

HEADER 2X1(W/O JMP)

1 2

CMCSK_CAM

UTXD0

URXD0

MCCK

MCCM0

MCDA0

MCDA1

MCDA2

MCDA3

URXD0 UTXD0SDA0 SCL0

Selection of CAM and sensor DTB

Note: 10-3

Note: 10-4

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

10_BB_MT2523G_BB

10 99Thursday , March 31, 2016

SPK_AMP_PDN

SYS CTL

SCL0

SDA0

U305_EINT_CONN [ 63,93]

U304_EINT_CONN [ 63,93]

U302_EINT_CONN [ 63,93]

U303_EINT_CONN [ 63,93]

Note: 10-5

EAR_EINT [60, 93]

MCINS [41,93]

SEN_32K_BB [ 63]

GPIO_A0 [63,93]

GPIO_A1 [63,93]

GPIO_A2 [63,93]

GPIO_A3 [63,93]

GPIO_A4 [41,93]

GPIO_A5 [60,93]

Note 10-1: Jumper selection for microSD or eMMC;

Schematic design notice of "10_BB_MT2523G_BB" page.

Note 10-3: Jumper selection for Camera or sensor DTB;

Dedicate pins for GPS function are fixed; Note 10-4:

Optional schematic for external flashNote 10-5:

R1004 should be closed to Larkspur ball out position

Note 10-2:

please don't change this design to other appliance.

also flexible pin mux feature for user appliance.

MCDA0

MCDA1

MCDA2

MCDA3

MCCK

MCCM0

J1005

R1002

R / 4.7 / K / 0402

J1006

J1011

J1007

R1003

R / 4.7 / K / 0402

R1006 R / 0 / ohm / 0402 / NC

J1012

J1013

HEADER 2X1(W/O JMP)

J1014

HEADER 2X1(W/O JMP)

J1001

R1004

R / 5.1 / K / 0402 / 1%

J1008

TP1001

J1002

R1010

R / 1.8 / K / 0402 / 1%

R0402

J1009

J1003

J1016

R / 0 / ohm / 0402-3P(1-2)

J1015

J1010

J1004

USB_VRT

LCMMSDC

CAMERA GPIO_B

UARTI2CGPIO_AUSBADC

SYS_CTL

MT2523 BB

GPO

GPIO_C

GND

U1000-1

MT2523G

MCCK

P10

MCCM0

N13

MCDA0

P12

LSCE_B

K13

LSRSTB

K14

LSCK

L13

LSDA

L12

LSA0

L14

LPTE

M15

CMPDN B18

CMRST B17

CMCSD1 A19

CMCSD0 B16

CMMCLK B19

CMCSK A18

GPIO_B2 B13

GPIO_B1 D10

GPIO_B3 E10

GPIO_B4 D9

URXD0 B8

UTXD0 B7

GPIO_A0 C18

USB_DM E3

USB_DP D3

GPIO_A1 B15

SCL0 E14

SDA0 E13

GPIO_B5 C10

GPIO_B0 E11

AUXADCIN_0 N8

GPIO_A2 D15

GPIO_A3 D16

GPIO_A4 C15

GPIO_A5 D17

MCDA1

N12

MCDA2

N11

MCDA3

N10

TESTMODE

SRCLKENAI

TCP

TCN

AVDD28_MIPI

AVSS28_MIPI

USB_VRT E6

TVR T

J4 AUXADCIN_1 M12

AUXADCIN_2 M8

AUXADCIN_3 M11

AUXADCIN_4 L8

TDP

TDN

GPO_0 L10

GPO_1 A6

GPO_2 B20

GPO_3 B6

GPIO_C4 A15

GPIO_C3 B10

GPIO_C2 D13

GPIO_C1 C13

GPIO_C0 D14

GND

F15

GND

J14

GND

H14

GND

G14

GND

F14

GND

J13

GND

H13

GND

G13

GND

F13

GND

J12

GND

J15

GND

H15

GND

G15

GND

H12

GND

G12

GND

F12

GND

H11

GND

G11

GND

F11

GND

K15

DVDD_VIO_A

VSWMP

VIO28

SCL0 [61,62,63]

SDA0 [61,62,63]

TDP[61]

TDN[61]

TCP[61]

TCN[61]

MA_SPI3_B_CS1 [63,90]

MSDC0_CMD [40]

MSDC0_C LK [40]

MSDC0_DAT3 [40]

Selection of

eMMC and micro SD

MSDC0_DAT2 [40]

MSDC0_DAT1 [40]

MSDC0_DAT0 [40]

EXT_PWREN [11]

LCM_BLPWM [ 61,90]

USB_DM [64]

USB_DP [64]

SWD_CLK_TGTMCU [66]

SWD_DIO_TGTMCU [66]

UART2_RX_MK [66]

UAR T2_TX_MK [66]

GPS_32K_BB [52]

GPS_HRST_B [90]

TP_RST [61]

MCCK_J [41]

MCCM0 _J [41]

MCDA3_J [ 41]

MCDA2_J [ 41]

MCDA1_J [ 41]

MCDA0_J [ 41]

CMMCL K_J[62,90]

CMCSD0_J[62,90]

CMCSD1_J[62,90]

CMRS T_J[62,90]

CMPDN_J[62,90]

MA_SPI3_B_CS0[63]

MA_SPI3_B_SCK[63]

MA_SPI3_B_MOSI[63]

U303_RSTN_CONN[63]

U303_PD_CONN[ 63]

UTXD3_GPS [52]

KROW1 [65]

KCOL2 [65]

CMCSK_J[62]

CMCSD2_J[62]

GPS_EINT [52]

TP_EINT [61]

MA_SPI3_B_MISO[63]

URXD3_GPS [52]

KCOL0 [65,90]

GPS_LDO_EN [52]

SPK_AMP_PDN[60]

LSCE_B_LC M[61]

LSRSTB_LCM[ 61]

LSDA_LC M[ 61]

LSA0_LCM[61]

LPTE_LCM[61]

LSCK_LC M[61,90]

MC_RST [40]

CMCSK

TVR T

CMCSK_CAM

Note: 10-2

LinkIt 2523 HDK v11 User's Guide

Page 53 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 32. BB MT2523G BB

R1116

R / 1 / ohm / 0402

R1117

R / 0 / ohm / 0402

1 2

R1115

R / 0 / ohm / 0402

J1106

R / 0 / ohm / 0402-3P(1-2)

R1114

R / 0 / ohm / 0402

J1111

R / 0 / ohm / 0402-3P(1-2)

J1110

R / 0 / ohm / 0402-3P(1-2)

Note: 11-1

C1139

C / 2.2 / uF / 0402

2 1

R1113

R / 0 / ohm / 0402 / N C

1 2

C1138

C / 1 / uF / 0402

2 1

C1137

C / 1 / uF / 0402

2 1

J1109

R / 0 / ohm / 0402-3P(1-2)

C1140

C / 2.2 / uF / 0402

2 1

VIO28

VIO18

VIO28

J1108

R / 0 / ohm / 0402-3P(1-2)

VIO18

VBAT_LDOS2

VBAT_LDOS1

VBAT IN

VIO18

VIO28

VBAT_VCORE

VBAT_BUCK_CTRL

VBAT

VMC

VIO28

DVDD_VIO_C

DVDD_GPO

DVDD18_VIO18

R1137

R / 0 / ohm / 0603

DVDD_VIO_A

DVDD33_VMC

DVDD18_VSWXM

C1112

C / 1 / uF / 0402

2 1

C1122

C / 1 / uF / 0402

2 1

R1124

R / 0 / ohm / 0402

R1122

R / 0 / ohm / 0402

TP1101

Note 11-4:

Note 11-3: This jumper could be switched for efuse function workable.

C1127 C / 4.7 / uF / 0603

2 1

Selection of 32.768 KHz crystal mounted:

This jumper could be switched for 32.768KHz crystal mounted

Users are able to adjust IO cluster power source by design;

Schematic design notice of "11_BB_MT2523G_ABB" page.

Those capacitors must be closed Larkspur ball out placement

Note 11-1:

Note 11-2:

R1139

R / 0 / ohm / 0402

1 2

Note 11-5: This jumper could be switched for PSRAM power saving

Note 11-6:

Note 11-7:

This test point is used for DCXO calibration

Note 11-8:

without battery.

VRTC: 32.768 KHz crystal is not existed

GND: 32.768 KHz crystal is existed

Total capacitor value at VBAT must larger than 28.4uF for D L

AVSS28_ABB ball L5 and K5 connected first, then connected

R1120

R / 0 / ohm / 0402

1 2

VSWXM: Switch off power supply in suspend mode

VIO18: 32.768KHz crystal existed

VA18: 32.768KHz crystal less

No burning eFUSE case: Pin FSOURCE_D is tied to GND .

Pin FSOURCE_D connected to VEFUSE

Burning eFUSE case is needed:

to C1109 GND side by point directly which without any branch.

Active eMMC should unmount R1113 and mount J1111.

VIO18: Default setting

J1101

DVDD_VIO_B should be connected to 2.8V power only

Note 11-9:

Note: 11-9

C1132C / 1 / uF / 0402

VDIG18

POWER INVBAT IN

AUDIO

LED DRV

PMU LDO

System

Control

MT2523 ABB

RTC

CHARGER

GND

U1000-2

MT2523G

ISINK D1

VIO18 L3

VIBR H1

VCORE_LDO N1

VMC E2

AU_HPL N2

AU_HPR M2

AU_VIN0_P P3

AU_VIN0_N P2

AU_VIN1_P N4

AU_VIN1_N N3

VDDK

AU_MICBIAS0 N5

VSF E1

AVSS28_ABB L5

VIO28 K2

VA18 K3

VBAT_LDOS2

VBAT_LDOS1

VCORE_BUCK P7

VCAMA G1

VBAT_VCORE

VA28 H2

GND_VCORE P9

VUSB33 J1

VSWMP K1

VSWDP L2

VCORE_FB N6

VBAT_BUCK_CTRL

VREF B5

VBATSW F2

VSWXM M1

VBT C3

FSOURCE_A L9

VCDT

BATON

CHRLDO

VDRV

BATSNS

ISENSE

PWRKEY

XIN

N15

XOUT

P15

AVSS28_HP L6

RTC_XOSC32_ENB

N16

AUD_VREF M4

SYSRSTB_IN

ACCDET M5

VDDK

K11

FSOURCE_D M9

AVSS28_ABB K5

AU_HSP K6

AU_HSN K7

AVDD18_DCXO

AVDD18_AUXADC

AVDD33_USB

AVDD_RTC

N14

AVDD28_ABB

DVDD18_VIO18

DVDD_GPO

DVDD_VIO_A

D21

DVDD_VIO_B

DVDD_VIO_C

A16

DVDD_VSF

E15

DVDD33_VMC

P13

AVSS_PMU

AVSS_DCXO

AVSS_VREF B4

AVSS_VREF L4

DVDD18_VSWXM

K12

RESETB_OUT

L11

GND

J10

GND

H10

GND

G10

GND

F10

GND

K10

GPDAC M6

AVSS33_USB

DVDD_VIO_B

M14

VDIG18 N9

VSF_23

VCORE_FB

VCORE

VMC_23

VIO28_LD O

VIO18_LD O

VUSB33_23

VBT_LDO

VCAMA_LDO

VA18_LDO

VBATSW

VA28_LDO

R1104

R / 0 / ohm / 0402

C1114

C / 4.7 / uF / 0603

2 1

C1110

C / 10 / uF / 0603

2 1

R1102

R / 0 / ohm / 0402

C1115

C / 10 / uF / 0603

2 1

R1131 R / 100 / K / 0402

C1113

C / 1 / uF / 0402

2 1

C1105 C / 2.2 / uF / 0402 / NC

2 1

R1133

R / 430 / K / 0402

C1125

C / 1 / uF / 0402

2 1

R1125

R / 0 / ohm / 0402

1 2

R1119

R / 0 / ohm / 0402

C1124

C / 1 / uF / 0402

R1118

R / 0 / ohm / 0402

C1107/C1108 mounted when 32K co-clock with GNSS function

VIO28

VIO18

C1126

C / 1 / uF / 0402

2 1

R1135

R / 0 / ohm / 0402

C1106

C / 1 / uF / 0402

2 1

C1116

C / 10 / uF / 0402

2 1

VDDK

C1130

C / 10 / uF / 0603

2 1

R1121

R / 0 / ohm / 0402

1 2

R1123

R / 0 / ohm / 0402

VIO18_LD O

C1120

C / 2.2 / uF / 0402

2 1

Note: 11-3

VIO28_LD O

X1101

X / 32 / KHz / SC-20S / 7pF

1 2

C1134

C / 100 / nF / 0402

2 1

C1102

C / 1 / uF / 0402

2 1

DVDD_VSF

C1117

C / 2.2 / uF / 0402 / NC

2 1

C1107

C / 10 / pF / 0402

2 1

R1134

R / 360 / K / 0402

C1121

C / 1 / uF / 0402

2 1

L1102

PL / MAKK2016T2R2M

J1103

R / 0 / ohm / 0402-3P(1-2)

C1129

C / 22 / pF / 0402

2 1

C1108

C / 10 / pF / 0402

2 1

J1102

R / 0 / ohm / 0402-3P(1-2)

R1103

R / 0 / ohm / 0402

TP1102

C1128

C / 10 / uF / 0603

2 1

C1118

C / 1 / uF / 0402

2 1

C1133

C / 100 / nF / 0402 / N C

2 1

TP1105

R1126

R / 0 / ohm / 0402

1 2

C1119

C / 2.2 / uF / 0402

2 1

C1123

C / 1 / uF / 0402

2 1

C1103

C / 1 / uF / 0402

2 1

TP1104

TP1103

U1101

U / TPS62560

SW 1

FB 3

Vin

GND

MOD E

THER PAD 7

VR TC

AU_MICBIAS0

VUSB33

VMC

VSF

VA28

VBT

VA18

VIO28

VCAMA

AVDD_BTRF_ext

VBAT

VSWXM

VSWMP

VSWDP

VIO28

VIBR

VSWDP

VSWXM

VSWMP

L1101

PL / MBKK1608T1R0M / SMD1608

VR TC

VCORE

VDIG18

AU_HPR[60]

AU_HPL[60]

CHRLDO[21]

VCDT[21]

VDRV[21]

VBAT_VCORE

VBAT_LDOS1

VBAT_BUCK_CTRL

VBAT_LDOS2

AU_VIN1_N[ 60]

BATON[21]

AU_VIN1_P[60]

DVDD_IO power

source selection

AU_HSN[60]

AU_HSP[60]

AU_VIN0_P[60]

AU_VIN0_N[ 60]

BATSNS[21]

ISENSE[21]

PWRKEY[ 65]

ACCDET[ 60]

EXT_PWREN[ 10]

ISINK [61,92]

XIN

XOUT

RTC_XOSC32_ENB

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

11_BB_MT2523_ABB

11 99Friday , June 24, 2016

DVDD18_VIO18

VIO18_LD O

PMU LDO

VDDK

RESETB_OUT

Note: 11-6

VMC_23

R1101

R / 1 / K / 0402 / NC

R1136

R / 0 / ohm / 0402 / N C

SYSRSTB_IN [66, 90]

VIO18

System reset button

SYSRSTB_IN RESETB_OUT

VUSB33_23

Note: 11-2

Note: 11-1

R1106

R / 0 / ohm / 0402

1 2

R1105

R / 0 / ohm / 0402 / N C

VDDK

VCORE

VCORE_FB

VIO28_LD O

VSF_23

Note: 11-8

VA28_LDO

VA18_LDO

VBT_LDO

VCAMA_LDO

C1136

C / 2.2 / nF / 0402 / X5R

2 1

SYSRSTB_IN

Note: 11-7

U6606

VTCXO / SiT1533AI-H4-D14-32768 / N C

1NC

GND

CLKOUT 3

VRTC

VREF

VR TC

R1112

R / 0 / ohm / 0402

1 2

VR TC

VIO28

DVDD_VIO_A

DVDD_GPO

VUSB33

C1135

C / 100 / nF / 0402

2 1

Note: 11-5

VSWXM

VIO18

J1105

R / 0 / ohm / 0402-3P(1-2) / N C

VIO18

J1113

CON3/SMD/P2.54/C111400/B/ACMELUX

VSWXM

J1112

R / 0 / ohm / 0402-3P(1-2)

VSF

VIO18

J1104

R / 0 / ohm / 0402-3P(1-2)

VA18

VIO28

VA28

VIO18

J1114

R / 0 / ohm / 0402-3P(1-2)

C1109

C / 2.2 / uF / 0402

2 1

C1131

C / 1 / uF / 0402

2 1

Note: 11-4 Note: 11-7

DVDD33_VMC

DVDD_VSF

AVDD18_AUXADC

VA18

AVDD18_DCXO

DVDD18_VSWXM

DVDD_VIO_C

VIO28

Vin = 2.5V ~ 5.5V

Vout = 0.6 x (1+Ra/Rb)

1.32V / 20mA (max)

Ext. Buck for BT AVDD13

CHRLDO

VDRV

ISENSE

VCDT

BATON

BATSNS

VREF

VBATSW

Note: 11-8

TP1106

AVDD18_DCXO

LinkIt 2523 HDK v11 User's Guide

Page 54 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 33. BB_MT2523G_ABB

J2001

VBAT_CONN

R2019 R / 1 / K / 0603

VBAT

Note 20-1: Users must connect CON6401 for total system power supply

DC 5V supply

60mils

Schematic design notice of "20_POWER_COMMON_LDO" page.

60mils

AD_IN_SW

AD_IN_FB

Vout = 0.6 x (1+Ra/Rb) = 3.96V

External LDO are option components

Note 20-2:

60mils

VBUS_SY S

60mils

FD and Hole

Remove R1118, R1119, C1114 change to 10uF when applying external LDO

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

20_POWER_COMMON_LDO

20 99Monday, Oct ober 24, 2016

H2007

STAND

HOLE/PTH/R6D3.5

H2006

STAND

HOLE/PTH/R6D3.5

C2001

C / 1 / uF / 0603 / 50V

H2001

STAND

HOLE/PTH/R6D3.5

C2006

C / 22 / pF / 0402

2 1

LED2003

LED / CL190Y G

H2005

STAND

HOLE/PTH/R6D3.5

R2005

R / 510 / K / 0402

R2006

R / 91 / K / 0402

R2003

R / 1 / K / 0402

H2004

STAND

HOLE/PTH/R6D3.5

R2004

R / 1 / K / 0402 / NC

1 2

R2002

R / 0 / ohm / 0402

12R2018

R / 1.58 / K / 0402

L2001

PL / MEKK2520T1R0M

1 2

U2004

U / TPS62065

SW 2

FB 4

PVIN

AVIN

PGND 1

MOD E

THER PAD

9AGND 3

H2003

STAND

HOLE/PTH/R6D3.5

R2001

R / 2.2 / K / 0402

F2001 2A FUSE

FUSE/DIP/SMD

C2002

C / 1 / uF / 0402

2 1

C2004

C / 10 / uF / 0603

LED2001

LED / CL190Y G

C2005

C / 22 / uF / 0603

2 1

C2003

C / 2.2 / uF / 0402

U2001

U / SS2003M

ANODE

CATHODE 5

CATHODE 1

CATHODE 2

CATHODE 6

U2002

U / SS2003M

ANODE

CATHODE 5

CATHODE 1

CATHODE 2

CATHODE 6

U2003

U / TPD1S514-1

VBUS_CON

EN#

A1 GND B4

GND C1

VBUS_SY S A2

VBUS_SY S A3

VBUS_POWER B1

VBUS_SY S B2

VBUS_CON

GND A4

GND C4

VBUS_CON

H2002

STAND

HOLE/PTH/R6D3.5

AD_IN

VBUS

VUSB_DAP

VUSB_BB

VBUS

LinkIt 2523 HDK v11 User's Guide

Page 55 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 34. POWER_COMMON_LDO

R2109

R / 0 / ohm / 0402

1 2

Differential

NTC

Rsense

4mil

BATTERY

CONNECTOR

4mil

Note: 21-2

Note: 21-1

Note: 21-5

Note: 21-4

Note: 21-3

Note: 21-6

Note 21-1:

Before you select BJT , please take power dissipation into consideration. Note 21-3:

Note 21-4: 60mils from battery connector to MT2523 chip

1. Close to Battery Connector. (Rsense (R2103) <10mm)

Capacitor rating depends on Phone OVP spec.Note 21-2:

Schematic design notice of "21_Power_Charging" page.

Based on your system level design , if better ESD performance is needed

Note 21-5: L style pin header for battery sub board plug in

Note: 21-7

Note 21-7: Thermal protection : battery with NTC

Note 21-6:

NTC

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

21_POWER_Charging

21 99Friday , June 24, 2016

Please place ESD2101 closed by R1137.

on your system, please refer to ESD performance enhance proposal.

Refer to MT6385 design notice.

3. Star connection from R2103 to BAT Connector

-> U2101's C -> R2103 -> VBAT)

2. Main path should be 40mil. (VBUS -> U2101's E,

BATTERY DTB

VCDT rating: 1.268V

60mils

(2) if battery NTC is 47kohm; R2106=61.9K (+/-1%)

(1) if battery NTC is 10kohm; R2106=16.9K (+/-1%)

C2102

C / 22 / uF / 0603

2 1

R2103

R / 0.1 / ohm / 0805 / 1%

R0805

Q2101

Q / PNMT6N1-LB

R2101

R / 1 / K / 0402

1 2

C2101

C / 1 / uF / 0603 / 50V

2 1

R2108

R / 0 / ohm / 0402

1 2

R2105

R / 1.5 / K / 0402

1 2

ESD2101

ESD / AZ5825-01F

ESD2102

ESD / AZ5725-01F

R2104

R / 330 / K / 0402 / 1%

1 2

R2107

NTC / NTCG103JF103FT / 0402

R2106

R / 16.9 / K / 0402 / 1%

1 2

CON2101

R2102

R / 39 / K / 0402 / 1%

1 2

VBUS

VBAT_CONN

VA18

VDRV [11]

VCDT

[11]

ISENSE [11]

BATON [11]

CHRLDO [11]

BATSNS [11]

D2101

D/NZ9F5V6ST5G

LinkIt 2523 HDK v11 User's Guide

Page 56 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 35. POWER_Charging

C4005

C / 4.7 / uF / 0402

2 1

R4010

R / 0 / ohm / 0402

MSDC0_DAT5

MSDC0_DAT6

MSDC0_DAT7

MSDC0_DAT4

153 ball eMMC

R4009

R / 0 / ohm / 0402 / N C

MSDC0_DAT5

MSDC0_DAT4

MSDC0_DAT7

MSDC0_DAT6

VIO18

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

40_Memory_eMMC

40 99Thursday , March 31, 2016

eMMC is an optional componentNote 40-5:

Note: 40-5

Schematic design notice of "40_MEMORY_eMMC" page.

Note 40-1:

C4003 need to be placed near by eMMCNote 40-3:

For eMMC 5.0, connect eMMC's A6 & J5 pin to GND.

Please refer eMMC datasheet for the recommendation of

Note 40-2:

Note: 40-3

Note: 40-1

Note: 40-2

R4004

R / 10 / K / 0402 / NC

C4004

C / 100 / nF / 0402

2 1

R4008

R / 0 / ohm / 0402

U4001

U / 153 eMMC / THGBMBG5D1KBAI L

DAT0

DAT1

DAT2

DAT3

DAT4

DAT5

DAT6

DAT7

VDDI

VSSQ

VCCQ C6

VCC E6

VSS

VCC F5

VSS

H10

VCC J10

RST K5

VSS

VCC K9

VCCQ M4

CMD M5

CLK M6

VSSQ

VCCQ N4

VSSQ

VCCQ P3

VSSQ

VCCQ P5

VSSQ

P6 A1 INDEX / NC D4

VSS

RFU A7

A10

A11

A12

A13

A14

B10

B11

B12

B13

B14

NC C5

NC C7

NC C8

NC C9

NC C10

NC C11

NC C12

NC C13

NC C14

NC D1

NC D2

NC D3

NC D12

NC D13

NC D14

NC E1

NC E2

NC E3

RFU E5

RFU E8

RFU E9

RFU E10

NC E12

NC E13

NC E14

NC F1

NC F2

NC F3

RFU F10

NC F12

NC F13

NC F14

NC G1

NC G2

RFU G3

RFU

G10

NC G12

NC G13

NC G14

DSL H5

H12

H13

H14

NC J1

NC J2

NC J3

VSS

NC J12

NC J13

NC J14

RFU

K6 RFU

K7 RFU

K10

K12

K13

K14

NC L1

NC L2

NC L3

NC L12

NC L13

NC L14

M10

M11

M12

M13

M14

NC N1

NC N3

NC N6

NC N7

NC N8

NC N9

NC N10

NC N11

NC N12

NC N13

NC N14

RFU

P10

P11

P12

P13

P14

R4009 and R4010 co-layout for path selection only on one time

R4007

R / 0 / ohm / 0402

R4005

R / 0 / ohm / 0402 / N C

C4002

C / 4.7 / uF / 0402

C4001

C / 2.2 / uF / 0402

2 1

R4001

R / 10 / K / 0402 / NC

R4006

R / 10 / K / 0402 / NC

C4003

C / 100 / nF / 0402

2 1

R4002

R / 10 / K / 0402 / NC

R4003

R / 10 / K / 0402 / NC

C4006

C / 100 / nF / 0402

2 1

VMC

VIO18

MSDC0_CMD [10]

MC_RST [10]

MSDC0_C LK [10]

MSDC0_DAT1[10]

MSDC0_DAT0[10]

MSDC0_DAT2[10]

MSDC0_DAT3[10]

Note: 40-4

R4005 and R4009 must be removed when micro SD feature activeNote 40-4:

Note: 40-4

VCC/VCCQ/VDDI bypass capacitors values.

For eMMC 4.5, check eMMC's A6 & J5 is no connection (NC).

VIO18

LinkIt 2523 HDK v11 User's Guide

Page 57 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 36. MEMORY_eMMC

VMC

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

41_MEMORY_SD Card

41 99Thursday , March 31, 2016

MSDC interface

Schematic design notice of "41_MEMORY_SD Card" page.

These ESD diodes are optional for better ESD and RF de-sense performance.

Note 41-1:

Note: 41-1 Note: 41-1

Note: 41-2

Note 41-2: R4101 must be removed when eMMC feature active

R4102

R / 10 / K / 0402 / NC

1 2

ESD4101 ESD5451NKM / NC

R4103

R / 10 / K / 0402 / NC

1 2

ESD4102 ESD5451NKM / NC

A K

ESD4103 ESD5451NKM / NC

A K

CON4101

CON / 12 / TA-M017-012-07-811

MICROSD/8P/ SMD/TA-M017-012-07-811

DATA2

CD/DATA3

CMD

VDD

CLK

VSS

DATA0

DATA1

CD 12

SWPIO 9

VCCSWP 10

GND 11

GND 13

GND 14

GND 15

GND 16

GND 17

GND 18

GND 19

ESD4104 ESD5451NKM / NC

A K

ESD4107 ESD5451NKM / NC

A K

R4104

R / 10 / K / 0402 / NC

1 2

ESD4105 ESD5451NKM / NC

A K

ESD4106 ESD5451NKM / NC

C4101

C / 1 / uF / 0402

2 1

ESD4108 ESD5451NKM / NC

A K

R4101

R / 0 / ohm / 0402

ESD4109 ESD5451NKM / NC

A K

VMC

MCINS [10,93]

MCDA1_J[10]

MCDA0_J[10]

MCDA3_J[10]

MCDA2_J[10]

MCCM0 _J[10]

MCCK_J[10]

(The C load of Diodes on trace should be less than 15pF)

LinkIt 2523 HDK v11 User's Guide

Page 58 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 37. MEMORY_SD Card

R5012

R / 0 / ohm / 0402 / N C

R5013

R / 0 / ohm / 0402 / N C

AVDD13_BTRF

R5005

R / 0 / ohm / 0402 / N C

AVDD_BTRF_ext

J5004 connected to VIO18 for external buck LDO cost reduction

Note 50-6: J5002 connected to VBT for dual mode of Bluetooth and BLE modes

Note 50-7: SMA 5001 SMA5002 are optional components

J5005 connected to AVDD_BTRF_ext for power saving

J5002 connected to VIO18 for BLE mode

J5004 connected to VBT for dual mode of Bluetooth and BLE modes

BT_ANT

R5010

R / 0 / ohm / 0402

R5011

R / 0 / ohm / 0402 / N C

BT_ANT

Note: 50-6

Note: 50-7

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

50_CONNECTIVITY_BT_MT2523G

50 99Thursday , March 31, 2016

26MHz crystal

XTA L 2

XTA L 1

XTA L 2

XTA L 1

R5002, C5003 and C5004 are reserved for BT antenna matching tuning

Note 50-1:

Schematic design notice of "50_CONNECTIVITY_BT_MT2523G" page.

Note 50-2: 26MHz crystal must be placed near by Larkspur ball out position

These capacitors should be placed near by ball out position

Note 50-3:

Note: 50-4

Note: 50-5

Note: 50-2

R5007

R / 0 / ohm / 0402

1 2

R5009

R / 0 / ohm / 0402 / N C

C5002

C / 100 / nF / 0402

2 1

TP5002

26M & CLK

BUFFER

MT2523 BT

POWER IN

U1000-3

MT2523G

XTA L 1 A9

XTA L 2 A10

FREF C8

BT_LNA A12

AVDD13_BTRF

A13

EXT_CLK_SEL A11

AVSS_BT

C11

AVSS_BT

B12

AVDD_VBT

A14

AVSS_BT

C12

AVSS_BT

D12

AVSS_BT

E12

DUMMY_NET

A22

DUMMY_NET

P22

DUMMY_NET

SMA5001

SMA-1.66MM

C5006

C / 18 / pF / 0402

R5002

R / 0 / ohm / 0402

C5005

C / 18 / pF / 0402

C5003

C / NC / 0402

R5003

R / 0 / ohm / 0402

TP5001

C5001

C / 2.2 / pF / 0402

2 1

C5004

C / NC / 0402

2 1

ANT5002

ANT sprint

Feed 1

R5006

R / 0 / ohm / 0402

1 2

J5002

R / 0 / ohm / 0402-3P(1-2)

J5001

R / 0 / ohm / 0402-3P(1-2)

L5002

J5004

R / 0 / ohm / 0402-3P(1-2)

C5008

C / NC / 0402

2 1

DIPX5001

DP1608-V1524C A

DIPLEXER/6P/SMD/DP1608

WiFi 1

GND 2

GPS 3

GND

ANT

GND

ANT5001

ANT sprint

Feed 1

J5003

R / 0 / ohm / 0402-3P(1-2)

X5001

X / 26 / MHz / 8Q26000008

Hot2

GND

2HOT 3

NC 4

L5001

1 2

SMA5002

SMA-1.66MM

C5007

C / NC / 0402

VIO18

The impedence of traces about diplexer should be 50 ohmNote 50-5:

Note 50-4: J5001 should keep low for clock is generated by crystal;

VBT

VIO18

VBT

VIO18

CLK_SEL

50 Ohm impedence

GPS_diplexer_input [ 52]

TP5003

C5009

C / 3.6 / pF / 0402 / GJM1555C1H3R6WB01D

2 1

L5003

L / 6.8 / nH / LQG15HS6N 8H02D

J5006 is set for single Bluetooth performance measurement.

Pull high if clock signal is injected from net XTAL1.

AVDD_VBT

Note: 50-1

50 Ohm impedence

LinkIt 2523 HDK v11 User's Guide

Page 59 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 38. CONNECTIVITY_BT_MT2523G

GNSS_VBAT

R5243

R / 0 / ohm / 0402 / N C

Note: 52-18

R5224 R / 0 / ohm / 0603

GNSS_VBAT

VBAT

Note: 52-8

Note: 52-14

External buck 3.3V LDO

Note 52-18:GPS HOT re-start feature

No support:

BAT5201=NC, R5211=NC, R5243=NC, R5234=0ohm

Support:

Support and Power optimization

X5204=NC, C5222=NC, C5221=NC, R5210=120K, R5220=91K

BAT5201=NC, R5211=NC, R5243=0ohm, R5234=NC

X5204=NC, C5222=NC, C5221=NC, R5210=120K, R5220=91K

BAT5201=ML621S, R5211=1K, R5243=NC, R5234=0 ohm

X5204=FC-135, C5222=22pF, C5221=22pF, R5210=NC, R5220=NC

GNSS_VBAT for pin GPS_VRTC_4V3 should be provided between 2.0V to 4.3V.

GPS_VDDIO

Carkit_input

SCK1

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

52_CONNECTIVITY_GPS_MT3333

52 99Monday , May 30, 2016

JDI

JCK

JMS

JRST

GPS_VTLDO_2V8

SCS1

External buck 3.3V LDO

VGPS_MAIN

GPS_VRTC_1V1

JDO

GPS_DCV

GPS_VREF

GPS_VTCXO_SW

GPS_DCV_FB

JRCK

GPS_VTCXO_SW

50 Ohm

VGPS_MAIN

GPS_RTC_XOUT

GPS_RFIN

TCXO

GPS_RTC_XIN

TX2

Schematic design notice of "52_CONNECTIVITY_GPS_MT2523G" page.

Note 52-1:

AVSS43_DCV should be connected to C5218 GND net first,

Note 52-3:

Both of pin AVDD43_VBAT and AVDD43_DCV voltage should be keeped

C5214 is close to G1 ball (AVDD28_TLDO)Note 52-2:

Buck Mode : L5202 = 1uH, R5205 = 0 ohm , R5206 = NC

Note 52-4:

Note 52-5: Recommend to select 3V coin battery for leakage consideration.

Note: 52-1

Note: 52-2

Note: 52-3

Note: 52-4

Note: 52-5

U5204/C5221/C5222 could be removed, R5210 = 0 ohm,

Note 52-6:

Note: 52-6

Note: 52-7

Note 52-7: VTCXO voltage selection

Note 52-8: RF clock selection

Note: 52-9

IO Voltage Selection

Note 52-9:

Host interface selection

Note 52-10:

Note: 52-10

Note: 52-12

Note: 52-11

Note 52-11:C5201 is close to U5201 VCC

50 Ohm

Carkit_input

Note: 52-15

Note: 52-13

RTC XT AL

TCXO layout please refer to MTK TCXO layout rule.

In order to keep good GPS clock stability,Note 52-12:

Note 52-15:

Note 52-14:Main Input Voltage Requirement and External LDOs Selection

output voltage drop-down period.

discharge function and confirm the voltage drop-down curve to keep long

[1] Please choose one voltage source without built-in output high-speed

GPS_VTCXO_SW Note for external active antenna, Note 52-16:

matching value depends on LNA selected

GPS_VTCXO_SW is 1.8V or 2.8V base on TCXO selection.

The voltage drop must can't be lower than 3.1V.

output voltage drop-down period (>1ms from 2.7V to 0.5V).

function, such as Torex XC6210/XC6215/XC6221 series to keep long

[2] Please choose external LDOs without output high-speed discharge

C5203, C5206 and L5201 are reserved for LNA matchingNote 52-13:

Otherwise, please using external power supply.

Please ensure external active antenna is operating at this range.

Please refer the QVL to select LNA componentNote 52-17:

the QVL to select TCXO component

MT2523 support 16.368MHz&26MHz TCXO, please refer

Note: 52-17

Note: 52-16

GPS_DCV_1V8

GPS_CORE1V1

GPS_VTLDO_2V8

C5218

C / 4.7 / uF / 0603

2 1

TP5205

L5203

L / 22 / nH / 0402 / NC

C5216

C / 1 / uF / 0402

R5211 R / 1 / K / 0402 / NC

TP5201

C5224

C / 4.7 / uF / 0603

2 1

R5235

R / 0 / ohm / 0402

TP5207

TP5210

C5214

C / 1 / uF / 0402

2 1

R5241

R / 0 / ohm / 0402

C5237

C / 4.7 / uF / 0603

2 1

TP5215

C5226

C / 1 / uF / 0402

U5205

U / XC6210A332MR

GND

3BYP 4

OUT 5

C5233

C / 0402 / NC

2 1

U5207

U / BGA725L6

GND 1

VCC 2

AO 3

GNDRF

PON

BAT5201 ML621S / NC

R5237

R / 0 / ohm / 0402

R5230

R / 0 / ohm / 0402

R5238R / 0 / ohm / 0402

TP5203

X5204

X / FC-135 32.768KH Z 12. 5pF

IN1 1

IN2 2

C5219

C / 4.7 / uF / 0603

2 1

C5236

C / 18 / pF / 0402

L5202

L / 1 / uH / 0806

L/IND/SMD/LQM2MPN1R0NG0

R5207

R / 10 / K / 0402 / NC

C5229

C / 18 / pF / 0402

C5221

C / 22 / pF / 0402

R5210 R / 120 / K / 0402 / N C

C5227

C / 22 / pF / 0402

J5202

R / 0 / ohm / 0402-3P(1-2)

R5206

R / 0 / ohm / 0402 / N C

R5236

R / 0 / ohm / 0402

12R5203 R / 10 / K / 0402 / N C

C5209

C / 4.7 / nF / 0402

R5209

R / 10 / K / 0402 / NC

C5211 C / 1 / uF / 0402

L5204

L / 5.6 / nH / 0402

TP5214

R5219

R / 0 / ohm / 0402

C5210 C / 1 / uF / 0402

U5203

U / XC6210A332MR

GND

3BYP 4

OUT 5

J5201

R / 0 / ohm / 0402-3P(1-2)

TP5206

C5213 C / 4.7 / nF / 0402

C5232

C / 0402 / NC

2 1

TP5204 NC

C5235

C / 0402 / NC

2 1

TP5216

C5234

C / 0402 / NC

2 1

C5207

C / 1 / nF / 0402

R5218

R / 0 / ohm / 0402 / N C

R5217

R / 0 / ohm / 0402 / N C

C5222

C / 22 / pF / 0402

TP5213

C5203

C5238

C / 4.7 / uF / 0603

2 1

VGPS_MAIN

R5216

R / 0 / ohm / 0402

C5212 C / 2.2 / uF / 0402

TP5211

R5240

R / 0 / ohm / 0402

R5226

R / 0 / ohm / 0402

R5205

R / 0 / ohm / 0402

C5201

C / 1 / uF / 0402

2 1

GPS_DCV_1V8

R5208

R / 10 / K / 0402

R5225

R / 0 / ohm / 0402

U5206

U / EPOCOS_B8313

OUT 4

R5220 R / 91 / K / 0402 / N C

R5228

R / 0 / ohm / 0402

R5204 R / 10 / K / 0402 / N C

R5232

R / 0 / ohm / 0402

TP5208

TP5202 NC

R5239

R / 0 / ohm / 0402

C5215

C / 1 / uF / 0402

R5201

R / 0 / ohm / 0402

R5234

R / 0 / ohm / 0402

C5230

C / 0402 / NC

2 1

U5208

U / EPOCOS_B8313

OUT 4

C5208

C / 4.7 / nF / 0402

TP5209

TX2

R5227

R / 0 / ohm / 0402

1 2

C5220

C / 1 / uF / 0402

2 1

MT2523G

U1000-4

MT2523G

GPS_32K_OUT

E17

GPS_AVDD43_RTC

D19

GPS_AVDD11_RTC

F21

GPS_XIN

K21

GPS_XOUT

K22

GPS_TX0

M16

GPS_RX0

M18

GPS_TX1

E16

GPS_RX1

G20

GPS_TX2

J18

GPS_RX2

L18

GPS_SCK1

K17

GPS_SCS1_

P17

GPS_VREF

H22

GPS_AVDD_TCXO_SW

F22

GPS_AVDD 28_TLDO

E22

GPS_AVSS43_MISC

G21

GPS_AVDD 28_CLDO

D22

GPS_AVDD 11_CLDO

B22

GPS_AVSS11_CLDO

C22

GPS_AVDD43_DCV

B21

GPS_AVSS43_DCV

A21

GPS_DCV

C21

GPS_DCV_FB

C20

GPS_HRST_B M21

GPS_XTEST M19

GPS_EINT0 N19

GPS_EINT1 N20

GPS_DVDD11_COR E2 L19

GPS_DVDD11_COR E1 G18

GPS_DVSS28_IO J17

GPS_DVDD28_IO1 H 20

GPS_DVDD28_IO2 P20

GPS_DVDD28_SF J20

GPS_JRCK L17

GPS_JDO P18

GPS_JDI K16

GPS_JCK G19

GPS_JMS N18

GPS_JRST_ N17

GPS_RFIN N22

GPS_AVDD18_RXFE M 22

GPS_T1P L20

GPS_OSC F20

GPS_AVDD18_CM L22

GPS_T1N L21

GPS_AVDD43_VBAT

G22

GPS_FORCE_ON

D20

GPS_DVSS11_CORE J16

GPS_DVSS11_CORE F17

GPS_DVSS11_CORE F16

GPS_DVSS11_CORE F18

GPS_DVSS11_CORE G16

GPS_DVSS11_CORE G17

GPS_DVSS11_CORE H16

GPS_DVSS11_CORE H17

GPS_DVSS11_CORE C19

GPS_AVSS_RF P21

GPS_DVSS28_SF J21

C5223

C / 2.2 / uF / 0402

2 1

L5201

L / 1.2 / nH / 0402

TP5212

C5231

C / 1 / uF / 0402

TCXO5201

TCXO / 26 / MHz

VCC 4

OUT

GND

2NC 1

C5206

C / 1 / pF / 0402

C5217

C / 1 / uF / 0402

2 1

C5225

C / 4.7 / uF / 0603

2 1

GPS_VANT

GNSS_VBAT

GPS_VTCXO_SW

GPS_32K_BB[ 10]

GPS_LDO_EN[10]

GPS_diplexer_input[50]

URXD3_GPS

[10]

UTXD3_GPS

[10]

between 3.1V to 4.3V (VGPS_MAIN)

VGPS_MAIN

then connect to reference GND.

LDO Mode : L5202 = 0 ohm , R5205 = NC , R5206 = 0 ohm

Pin GPS_VRTC_4V3 should be provided between 2.0V to 4.3V.

GPS_VRTC_4V3 should be kept (always alive voltage source).

Or change C5220 to 0 ohm and feed 1.1V (always alive voltage

source) into GPS_VRTC_1V1.

2.8V TCXO: TLDO 2.8V : R5209 = NC

1.8V TCXO: SMPS 1.8V : R5209 = 10K

16.368MHZ TCXO : R5207 = NC , R5208 = NC

26MHZ TCXO : R5207 = NC , R5208 = 10K

2.8V IO : R5201= 0 , R5202 = NC (IO voltage is GPS_VTLDO)

1.8V IO : R5201 = NC , R5202 = 0 (IO voltage is GPS_DCV_1V8)

UART : R5203 = NC , R5204 = NC (I/F : TX0 , RX0)

SPI : R5203 = NC , R5204 = 10K

I2C : R5203 = 10K , R5204 = 10K

GPS_CORE1V1

GPS_DCV_1V8

GPS_EINT

[10] R5242R / 0 / ohm / 0402

GPS_VANT

GPS_VTLDO_2V8

GPS_VTCXO_SW

VGPS_MAIN

TX2

LinkIt 2523 HDK v11 User's Guide

Page 60 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 39. CONNECTIVITY_GPS_MT2523G

Note: 60-2

The gain of class-D amplifier is set to 12dB (4V/V); Note 60-2:

Note: 60-3

AMIC

Note 60-3: ESD diodes are for ehnhacement proposal; also could be cost reduction.

Note: 60-3

C6017 C / 1 / uF / 0402

2 1

C6004

C / 33 / pF / 0402 / N C

R6005 R / 100 / ohm / 0402

ESD6006

ESD5Z5.0T1G

ESD6004ESD5Z5.0T1G

C6021

C / 100 / nF / 0402

C6010

C / 33 / pF / 0402 / N C

BEAD6001

L / BLM15AG100SN1 / 0402

2 1

R6014

R / 0 / ohm / 0402

1 2

R6016

R / 0 / ohm / 0402

C6001 C / 100 / nF / 0402

TP6001

C6006

C / 100 / pF / 0402 / N C

C6009

C / 33 / pF / 0402 / N C

R6008

R / 470 / ohm / 0402

R6015

R / 0 / ohm / 0402

1 2

TP6003

MIC6001

MIC / SPU0410HR5H-PB

FILTER/SMD/SPU0410HR5H-PB

OUT 4

GND

2GND 3

VDD

C6018

C / 100 / nF / 0402

C6003

C / 33 / pF / 0402 / N C

ESD6001

ESD5451N KM / NC

A K

R6019

R / 0 / ohm / 0402

1 2

TP6004

R6004

R / 1 / K / 0402

C6025

C / 22 / uF / 0402

C6007

C / 22 / uF / 0402

C6014

C / 33 / pF / 0402

2 1

C6019

C / 4.7 / uF / 0402 / X5R

R6013

R / 300 / K / 0402 / NC

C6024

C / 33 / pF / 0402

2 1

R6017

R / 0 / ohm / 0402 / N C

1 2

C6015

C / 33 / pF / 0402

2 1

ESD6002

ESD5451N KM / NC

C6005 C / 4.7 / uF / 0603

R6007

R / 470 / K / 0402

1 2

R6010

R / 47 / K / 0402

1 2

R6009

R / 470 / ohm / 0402

U6001

U / TPA2010D1

VDD

IN+

IN-

SHUNTDOWN

PVDD B2

GND A2

GND B3

VO- A3

VO+ C3

XMI C

R6018

R / 0 / ohm / 0402 / N C

1 2

C6012

C / 100 / nF / 0402

2 1

ESD6005ESD5Z5.0T1G

R6020

R / 0 / ohm / 0402

CON6001

JACK_CON/ 5P/EJ -3699M-GP

AUDIOJAC K/5P/ SMD/EJ-3699M-GP

C6013

C / 100 / pF / 0402

2 1

C6011

C / 33 / pF / 0402 / N C

R6006 R / 100 / ohm / 0402

ESD6003ESD5Z5.0T1G

R6011

R / 75 / K / 0402

1 2

C6016 C / 1 / uF / 0402

2 1

R6003

R / 0 / ohm / 0402 / N C

1 2

R6012

R / 75 / K / 0402

R6001

R / 1.5 / K / 0402

C6023

C / 100 / pF / 0402

C6022

C / 33 / pF / 0402

2 1

C6008

C / 33 / pF / 0402 / N C

C6002 C / 100 / nF / 0402

R6002

R / 0 / ohm / 0402 / N C

1 2

C6020

C / 100 / nF / 0402

AU_MICBIAS0

VIO28

AU_MICBIAS0

VBAT

EAR_EINT[10,93]

AU_HPR[11]

AU_HPL[11]

AU_HSP[11]

AU_HSN[11]

SPK_AMP_PDN[ 10]

AU_VIN0_N [11]

AU_VIN0_P [11]

AU_VIN1_N[11]

ACCDET[ 11]

AU_VIN1_P[11]

Speaker is an optional componentNote 60-4:

Note: 60-4

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

60_PERI_Audio_IO

60 99Thursday , March 31, 2016

SPK1

SPK / 2403-260-00071-190-EN

SPEAKER/ SMD/2403-260-00071/WS3330

AU_SPKN

AU_SPKP

AU_SPK_N

AU_SPK_P

Speaker

R6021

R / 0 / ohm / 0402

1 2

R6022

R / 0 / ohm / 0402

1 2

R6023

R / 0 / ohm / 0402

1 2

Schematic design notice of "60_PERI_Audio_IO" page.

Note 60-1:

JACK_GND

Note: 60-1

The GND of headset microphone and Headset earphone

In shielding

XMIC_SLT

XMP3_R_SLT

XMP3_L

XMP3_R

XMI C

XMP3_R

R6024

R / 0 / ohm / 0402

1 2

R6025

R / 0 / ohm / 0402

1 2

XMP3_L

Headset earphone

Headset microphone

default open

XMP3_L_SLT

JACK_GND

EAR_EINT_1

should be connected together first, then connected to main GND.

SHORT6001

SHORT / NC-MMD-L6-4MIL

LinkIt 2523 HDK v11 User's Guide

Page 61 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 40. PERI_Audio_IO

R6101

R / 0 / ohm / 0402 / N C

LCM_BLPWM_J

R6102

R / 0 / ohm / 0402

R6103

R / 0 / ohm / 0402 VI O28

VIO18

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

61_PERI_LCD_CTP

61 99Friday , J une 24, 2016

Note 61-1: High speed connector is an optional component

J6101

R / 0 / ohm / 0402-3P(1-2)

J6102

R / 0 / ohm / 0402-3P(1-2)

CON6102

1 2

5 6

910

1211

1413

15 16

J6103

R / 0 / ohm / 0402-3P(1-2)

LSRSTB_JP

LSRSTB_HS

LSCE_B_H S

LSCE_B_J P

LPTE_JP

LSCK_H S

LSCK_JP

LSDA_H S

LSDA_JP

LPTE_HS

LSA0_HS

LSA0_JP

LCM_BLPWM_J

LPTE_JP

LSDA_JP

LSA0_JP

LSCK_JP

LSCE_B_J P

LSRSTB_JP

J6104

R / 0 / ohm / 0402-3P(1-2)

J6105

R / 0 / ohm / 0402-3P(1-2)

J6106

R / 0 / ohm / 0402-3P(1-2)

VBAT

LCM_BLPWM[10, 90]

LPTE_LCM[10]

LSDA_LC M[ 10]

LSCK_LC M[10,90]

LSRSTB_LCM[ 10]

LSCE_B_LC M[10]

LSA0_LCM[10]

TP_RST [10,61]

ISINK[11,61,92]

TP_EINT [10,61]

SCL0 [10,61,62, 63]

SDA0 [10,61,62, 63]

SCL0 TP_SCL [94]

SDA0 TP_SDA [94]

TP_EINT TP_EINT[94]

LPTE_HS LPTE [94]

LSRSTB_HS LSRSTB [94]

TP_RST TP_RST [94]

ISINK ISINK [94]

LSCK_H S LSCK [94]

LSDA_H S LSDA [94]

LSA0 [94]

LSA0_HS

LSCE_B_H S LSCE_B [94]

LCM_BLPWM_J PWM_EN[94]

LinkIt 2523 HDK v11 User's Guide

Page 62 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 41. PERI_LCD_Capacitive touch panel

CMCSK_J [10]

CMCSD1_J [10,90]

CMCSD0_J [10,90]

CMMC LK_J [10,90]

CMCSD2_J [10]

CMR ST_J [10,90]

CMPDN_J [10,90]

VCAMA VBAT

SDA0[10,61,63]

SCL0[10,61,63]

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

62_PERI_CAMERA

62 99Thursday , March 31, 2016

CON6201

HE7X2 MALE_TOP

DIP7X2/P2.54

+10

+12

+14

LinkIt 2523 HDK v11 User's Guide

Page 63 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 42. PERI_CAMERA

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

63_PERI_SENSOR_DTB

63 99Friday , June 24, 2016

CON6301

1 2

5 6

910

1413

15 16

R6301

R / 0 / ohm / 0402

1 2 R6302

R / 0 / ohm / 0402

1 2

R6303

R / 0 / ohm / 0402

1 2

VBAT

VIO28 VIO18

SDA0[10,61,62] MA_SPI3_B_MISO [ 10]

SCL0[10,61,62] MA_SPI3_B_MOSI [10]

MA_SPI3_B_CS0 [10]

MA_SPI3_B_SCK [10]

U303_EINT_CONN [10,93]

U303_PD_CONN [10]

U303_RSTN_CONN [10]

MA_SPI3_B_CS1[10,90]

U304_EINT_CONN[10,93]

U305_EINT_CONN[10,93]

U302_EINT_CONN[10,93]

SEN_32K_BB[10]

R6304

R / 0 / ohm / 0402

1 2 VA28

LinkIt 2523 HDK v11 User's Guide

Page 64 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 43. PERI_SENSOR_DTB_IO

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

64_PERI_USB

64 99Thursday , March 31, 2016

USB_DP[ 10]

USB_DM[10]

VUSB_BB

CON6401

Proconn_8791-N 005-M1A0

VUSB

D-

D+

GND

5.6

.10

.11

ESD6402

ESD / AZ5825-01F

ESD6401

ESD / AZ5315-02F

D2 1

D1 2

USB

This ESD components are optional for better ESD performance.

Note 64-1:

Schematic design notice of "64_PERI_USB" page.

Note: 64-1

The C load of these diodes must smaller than 3pf and close to USB jack.

LinkIt 2523 HDK v11 User's Guide

Page 65 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 44. PERI_USB

PWRKEY

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

65_PERI_Key

65 99Thursday , March 31, 2016

SW6501

KSW (DJT-1109S-2)

ESD6501

ESD5451N KM / NC

A K

R6502

R / 1 / K / 0402

PWRKEY[11]

ESD6503 ESD / ESD5311NKM /NC

ESD6505 ESD / AZ5325-01F /N C

KEYPAD

SW6502

KSW (DJT-1109S-2)

SW6503

KSW (DJT-1109S-2)

R6501

R / 20 / K / 0402

R6503

R / 20 / K / 0402

SW6504

KSW (DJT-1109S-2)

KCOL0[10, 90]

SW6505

KSW (DJT-1109S-2)

KROW1[10]

KCOL2[ 10]

ESD6502 ESD / ESD5311NKM /NC

ESD6504 ESD / AZ5325-01F /N C

Note 65-1: This ESD diode D6501 must be closed by power button SW6301

Note: 65-1

Schematic design notice of "65_PERI_KEY" page.

J6501

HEADER 2X1(W/O JMP)

LinkIt 2523 HDK v11 User's Guide

Page 66 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 45. PERI_KEY

SW6601

KSW (DJT-1109S-2)

C6606

C / 1 / uF / 0603 / 50V

2 1

R6605

R / 0 / ohm / 0402

VIO28_MK

R6616

R / 0 / ohm / 0402 / N C

R6618

R / 0 / ohm / 0402

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

66_PERI_SWD

66 99Thursday , March 31, 2016

Schematic design notice of "66_PERI_SWD" page.

Replace to bead 330ohm@100MHz 1.5A if power noise impact existedNote 66-1:

Note: 66-1

SDA_JTAG_TCLK

SDA_JTAG_TRST

SDA_JTAG_TDI

SDA_JTAG_TMS

SDA_JTAG_TDO

MK20 JTAG connector

X6601

X / 8 / MHz / ABM3B-8.000MHZ-18-B2-T

GND

2OUT 3

GND 4

RESETB_TGT2V8

For RESETB LVS

LED6601

LED / CL190Y G / N C

TP6610NC 1

TP6604

CON6602

HE10X2 RA HOUSING

+10

+12

+14

+16

+18

+20

VIO28

Q6602

Q / SSM3K15AMFV

2 3

ESD6601 ESD / AZ5825-01F

VIO28_MK

R6615

R / 510 / K / 0402

U6601

U / MK20DX128VFM5

VDDA

VSSA

VBAT

VREGIN

VOUT33

USB0_D M

USB0_D P

EXTAL32

RESET#

VSS1

EPAD

VDD1

XTA L

JTAG_TCLK/SWD_CLK/EZP_CLK/TSI0_CH1/PTA0/UART0_CTS#/UART0_COL#/FTM0_CH5 12

JTAG_TDI/EZP_DI/TSI0_CH2/PTA1/UART0_RX/FTM0_CH6 13

JTAG_TDO/TRACE_SWO/EZP_DO/TSI0_CH3/PTA2/UART0_TX/FTM0_CH7 14

JTAG_TMS/SWD_DIO/TSI0_CH4/PTA3/UART0_RTS#/FTM0_CH0 15

NMI#/EZP_CS#/TSI0_CH5/PTA4/FTM0_CH1 16

EXTAL/PTA18/FTM0_FLT2/FTM_CLKIN 0 17

XTAL/PTA19/FTM1_FLT0/FTM_CLKIN 1/LPTMR0_ALT1 18

ADC0_SE8/TSI0_CH0/PTB0/I2C0_SCL/FTM1_CH0/FTM1_QD_PHA 20

ADC0_SE9/TSI0_CH6/PTB1/I2C0_SDA/FTM1_CH1/FTM1_QD_PHB 21

ADC0_SE15/TSI0_CH14/PTC1/SPI0_PCS3/UART1_RTS#/FTM0_CH0/I2S0_TXD0 22

ADC0_SE4B/CMP1_IN0/TSI0_CH15/PTC2/SPI0_PCS2/UART1_CTS#/FTM0_CH1/I2S0_TX_FS 23

CMP1_IN1/PTC3/SPI0_PCS1/UART1_RX/FTM0_CH2/CLKOUT/I2S0_TX_BCLK 24

PTC4/SPI0_PCS0/UART1_TX/FTM0_CH3/CMP1_OUT 25

PTC5/SPI 0_SCK/LPTMR0_ALT2/I2S0_R XD0/CMP0_OUT 26

CMP0_IN0/PTC6/SPI0_SOUT/PDB0_EXTRG/I2S0_RX_BCLK/I2S0_MCLK 27

CMP0_IN1/PTC7/SPI0_SIN/USB_SOF_OUT/I2S0_RX_FS 28

PTD4/SPI0_PCS1/UART0_RTS#/FTM0_CH4/EWM_IN 29

ADC0_SE6B/PTD5/SPI0_PCS2/UART0_CTS#/UART0_COL#/FTM0_CH5/EWM_OUT# 30

ADC0_SE7b/PTD6/SPI0_PCS3/UART0_RX/FTM0_CH6/FTM0_FLT0 31

PTD7/CMT_IRO/UART0_TX/FTM0_CH7/FTM0_FLT1 32

R6625

R / 0 / ohm / 0603

1 2

R6607

R / 6.6 / K / 0402 / NC

R6603R / 33 / ohm / 0402

TP6606NC 1

R6611

R / 10 / K / 0402

R6617

R / 5.1 / K / 0402

C6601

C / 18 / pF / 0402

2 1

R6609

R / 10 / K / 0402

CON6601

Proconn_8791-N 005-M1A0

VUSB 1

D- 2

D+ 3

ID 4

GND 5

10 .

U6605

U / ATMEL AT45DB161E-SHD2B-T / N C

SCK

2GND 7

SO 8

RST_B

CS_B

VCC 6

WP_B 5

TP6612

R6619

R / 0 / ohm / 0402

R6622

R / 0 / ohm / 0402

R6621 R / 0 / ohm / 0402

Q6603

Q / SSM3K15AMFV

2 3

R6606

R / 5.1 / K / 0402 / NC

ESD6602

ESD / AZ5315-02F

D2 1

D1 2

C6602

C / 18 / pF / 0402

2 1

TP6607

TP6603NC 1

R6620 R / 0 / ohm / 0402

TP6611NC 1

C6607

C / 1 / uF / 0402

2 1

TP6609NC 1

C6605

C / 2.2 / uF / 0603

R6614

R / 0 / ohm / 0402

TP6601

R6623

R / 0 / ohm / 0402

R6602R / 33 / ohm / 0402

U / NXP 74LVC125A

U6604

1OE#

2OE#

53OE# 10

4Y 11

4A 12

4OE# 13

VCC 14

GND

3A 9

3Y 8

GND 15

C6604

C / 1 / uF / 0402

2 1

TP6602NC 1

R / 470 / ohm / 0402 / N C

R6608

R6604

R / 10 / K / 0402

R6610

R / 10 / K / 0402

TP6608NC 1

TP6605NC 1

VIO28_MK VIO28_MK

VIO28_MK

VUSB_DAP

VBUS

VUSB_DAP

VIO28_MK

SYSRSTB_IN [11, 90]

UART2_RX_MK [10]

UAR T2_TX_MK [10]

SWD_CLK_TGTMCU [10]

SWD_DIO_TGTMCU [10]

RESETB_TGT2V8

Buffer for SWD input/output

SDA_SWD_OE_B

SDA_SPI0_SIN

SDA_SPI0_CS

SDA_SPI0_RST_B

SDA_SPI0_SCK

SDA_SPI0_SOUT

WP_B

SDA_JTAG_TRST

SPI FLASH MEMORY

SDA_JTAG_TCLK

SDA_SWD_EN

SDA_JTAG_TMS

SDA_JTAG_TDO

SDA_JTAG_TDI

SDA_SPI0_CS

SDA_SPI0_RST_B

SDA_SPI0_SIN

SDA_SPI0_SOUT

SDA_SPI0_SCK

SDA_SWD_OE_B

SDA_SPI0_SOUT

SDA_SWD_EN

SDA_SPI0_SCK

SDA_SWD_EN

SDA_SPI0_SIN

SWD_DIO_TGTMCU_R

C6608

C / 100 / nF / 0402 / N C

R6624

R / 10 / K / 0402 / NC

WP_B

LinkIt 2523 HDK v11 User's Guide

Page 67 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 46. PERI_SWD

DVDD_VIO_A

CON9002

HE10X2 RA HOUSING

+10

+12

+14

+16

+18

+20

R9016

R / 5.1 / K / 0402 / NC

R9017 R / 0 / ohm / 0402 / NC

1 2

R9018 R / 0 / ohm / 0402 / NC

1 2

R9019 R / 0 / ohm / 0402 / NC

1 2

R9020 R / 0 / ohm / 0402 / NC

1 2

R9021 R / 0 / ohm / 0402 / NC

1 2

CMPDN_J[10,62]

CMRS T_J[ 10,62]

CMCSD1_J[10,62]

CMMCL K_J[ 10,62]

CMCSD0_J[10,62]

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

90_DEBUG_IO

90 99Thursday , March 31, 2016

HW trap

R9003

R / 10 / K / 0402 / NC

R9008

R / 10 / K / 0402

R9004

R / 10 / K / 0402 / NC

R9009

R / 10 / K / 0402 / NC

R9005

R / 10 / K / 0402 / NC

R9010

R / 10 / K / 0402 / NC

R9006

R / 10 / K / 0402 / NC

R9001

R / 10 / K / 0402

R9002

R / 10 / K / 0402 / NC

R9007

R / 10 / K / 0402 / NC

DVDD18_VIO18 VI O28

DVDD_GPO

DVDD18_VIO18

KCOL0[ 10,65]

DVDD_GPO

LCM_BLPWM[10,61]

GPS_HRST_B[10]

LSCK_LC M[10, 61]

MA_SPI3_B_CS1[10,63]

MCU JTAG Trapping

The sequence is (GPS_HRST_B, LCM_BLPWM)

Low: Normal mode, High: Test mode

Low: 1.86V, High: 3V

Keep low for image download, keep high for normal boot.

(Low, Low): no JTAG; (Low, High): JTAG at keypad; (High, High): JTAG at CAM

Note 90-1:

Net KCOL0 is the trap pin of USB download.

Note 90-3: This trap pin is used to adjust serial flash voltage.

One of JTAG trap pin, selection combination with note 90-2

Note 90-2:

Schematic design notice of "90_Debug_IO" page.

This trap pin is used to adjust system into system level test or not.Note 90-4:

Note: 90-1

Note: 90-4Note: 90-2

Note: 90-3

R9023 R / 0 / ohm / 0402 / NC

1 2

SYSRSTB_IN[ 11,66]

LinkIt 2523 HDK v11 User's Guide

Page 68 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 47. DEBUG_IO

Title

Size

Date: Sheet of

MediaTek HDK MT2523G

92_POWER INDICATOR

92 99Thursday , March 31, 2016

R / 0 / ohm / 0603

R9211

Q / SSM3K37MFV

Q9201

2 3

LED9201

LED / CL190Y G

LED9209

LED / LAL296-P1R2-Z

Q / SSM3K15AMFV

Q9206

2 3

R9201

R / 1.58 / K / 0402

R9206

R / 1.58 / K / 0402

LED9206

LED / CL190Y G

R / 180 / ohm / 0402

R9209

VBAT

VCORE

VMC

ISINK [11,61]

VBAT

Power Indicator

LinkIt 2523 HDK v11 User's Guide

Page 69 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 48. POWER INDICATOR

TCP

R101

R / 0 / ohm / 0402

1 2

R102

R / 0 / ohm / 0402

1 2

TCN

R103

R / 0 / ohm / 0402

1 2

R104

R / 0 / ohm / 0402

1 2

TDP

TDN

SCL0 TP_SCL [94]

SDA0

TP_EINT TP_SDA [94]

TP_EINT[ 94]

LPTE_HS

LSRSTB_HS

LPTE [ 94]

LSRSTB [94]

TP_RST

ISINK TP_RST [94]

ISINK [94]

LSCK_HS

LSDA_HS LSC K [94]

LSDA [94]

LSA0_HS

LSCE_B_HS LSA0 [ 94]

LSCE_B [94]

LCM_BLPWM PWM_EN[94]

TP IC:ITE7258

R401

R / 4.7 / K / 0402 / NC

VIO28

R402

R / 4.7 / K / 0402 / NC

TP_SDA

TP_SCL

VIO28VIO28

VIO18

LPTE

LSA0

VIO28

TR-TFT 240 x 240 LCM

Goodix+Truly CTP (at TOP)

LSCK

LSRSTB

LSCE_B

LSDA

Model :Truly 1.6" Square

Driver : ST7789H2-G4

Spec : 240 X 240

Interface : Serial

Touch panel : Truly

Backlight types: 1S3P (3 LEDs)

C403

C / 100 / nF / 0402

C401

C / 100 / nF / 0402

2 1

Note: 4-1

TP IC:GT9137

LEDK[2,3]

TP412

IM0

R404 0R

VIO18

R405 0R

IM1

VBAT

VIO18

IM1

IM0

C402

C / 2. 2 / uF / 0402

C0402

2 1

D401

ESD / PESD 5V0V1BL / NC

CON401

CON / 24 / OK-03F024-04

LEDK

GND

FMARK

SDA

RESET

IOVCC

VCC

GND

IM1

IM0

LEDA

R403

R / NC / 0402

D402

ESD / PESD 5V0V1BL / NC

CON402

CON / 10 / OK-20F010-04

VDD

SCL

SDA

EINT

RESET

GND

D403

ESD / PESD 5V0V1BL / NC

D404

ESD / PESD 5V0V1BL / NC

D405

ESD / PESD 5V0V1BL / NC

TP_SCL[1,3, 5]

TP_EINT[1,3,5]

TP_SDA[1,3, 5]

TP_RST[1, 3,5]

LEDA[2,3]

J402

1 2

LSDA

LSA0

LSRSTB

LSCK

LSCE_B [1]

LPTE

U501

U / TPS65631W

SWP

PGND

OU TP

FBS

AGND

PVIN 10

AVIN 9

SWN 8

OU TN 7

CTRL 6

GND 11

LSCE_B

LSDA [1]

LPTE [ 1,5]

LSRSTB [1,3, 5]

LSCK [1]

AMOLED Power

LSA0 [1]

TP402

TP404

TP403

TP401

TP405

IM1=0,IM0=1 (3SPI)

IM1=1,IM0=0 (4SPI)

TP406

TP407 1

TP408 1

J401

1 2

TP409 1

TP410 1

ISINK[1,3]

R204

R / 3. 3 / ohm / 0402

J201

PWM_EN[1] LEDK [3, 4]

J203

1 2

VBAT

Note: 2-1

J202

1 2

LEDA[3,4]

Rset=200/Imax

L201 PL / 10 / uH / L-NR 3012

C201

C / 470 / nF / 0402

C204

C / 10 / uF / 0603

U201

U / KTD2898 / TDFN22-6

CTRL

VIN

VOUT

FB 4

GND 5

LX 6

LCM Backlight LED Driver

MTP

Note: 1-3

TCP_AMOLED [5]

TCN_AMOLED [5]

TDP_AMOLED [5]

TDN_AMOLED [5]

1. For MTK Internal development and verification.(EVB:WS3308)

2. CON101,CON102 can support display MIPI and Serial I/F at the same time.

Note 1-1:

R101,R102,R103,R104 is for selecting TR-TFT LCM or AMOLED.

Note 1-2:

Schematic design notice of "01_CONNECTOR" page.

Title

Size

Date: Sheet of

MTK Confidential

94_MIPI_AMOLED_CTP

94 99Monday, October 24, 2016

Note 1-3:

JP101 only support serial LCM I/F.

C502

C / 1 / uF / 0402

2 1

C503

C / 1 / uF / 0402

2 1

CON502

AXE510124

910 10

12 12

13 13

VIO28

CON501

CON / 24 / AXE520127

111 11

212 12

313 13

414 14

515 15

616 16

20 20

10 19 19

918 18

817 17

22 21 21

23 23

C501

C / 1 / uF / 0402

2 1

VIO18

AVDD

R501

R / 0 / ohm / 0402

1 2

AVEE

VIO28

TDN_AMOLED [1]

TDP_AMOLED [1]

TCN_AMOLED [1]

TCP_AMOLED [1]

SWIRE[ 5]

LPTE[1,4]

LSRSTB[1,3, 4]

TP_SCL [1,3, 4]

TP_SDA[1,3, 4]

TP_RST[1, 3,4]

TP_EINT[1,3,4]

Model :AUO

Driver : RM69032

Spec : 320 X 320

Interface : MIPI DSI, 1-Lane

Touch panel : N/A

3D Display : N/A

AMOLED

ITE+Jinfu CTP (at Bottom)

L502

PL / 10 / uH / L-NR 3012

SWIRE [5]

L501

PL / 10 / uH / L-NR 3012

C507

C / 10 / uF / 0402 / 6.3V

C505

C / 10 / uF / 0402 / 6.3V

2 1

C506

C / 10 / uF / 0402 / 6.3V

2 1

VBAT

AVEE

AVDD 20%

C504

C / 100 / nF / 0402

20%

25V

R502

R / 0 / ohm / 0402

GND_POW ER GND_SI GNAL

TCP [ 10 94]

TDN [ 10 94]

TDP [ 10 94]

TCN [ 10 94]

LinkIt 2523 HDK v11 User's Guide

Page 70 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 49. LCM

LinkIt 2523 HDK v11 User's Guide

Page 71 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

6. Layout (V11)

Figure 50. LinkIt 2523 HDK layout (Layer 1)

LinkIt 2523 HDK v11 User's Guide

Page 72 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 51. LinkIt 2523 HDK layout (Layer 2)

LinkIt 2523 HDK v11 User's Guide

Page 73 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 52. LinkIt 2523 HDK layout (Layer 3)

LinkIt 2523 HDK v11 User's Guide

Page 74 of 82

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Figure 53. LinkIt 2523 HDK layout (Layer 4)

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

7. LinkIt 2523 HDK’s BOM (V11)

Table 30 shows the bill of material details of the HDK. Users can refer this table to understand the components

used on the HDK as well as to customize and change parts as needed.

Table 30. LinkIt 2523 HDK bill of materials

Ite

Quantity Reference Part PCB Footprint Manufacturer

1 2 ANT5001,ANT5002 ANT sprint PAD/SMD/2.3X1.0

2 1 BAT5201 ML621S C0.22F3.3V/SMD/

EN-RL

Panasonic

3 1 BEAD6001 L / BLM15AG100SN1 /

0402

BEAD0402 Murata

4 1 CON2101 HEAD_6P DIP6/P2.54 PIN CHIH

5 1 CON401 CON / 24 / OK-03F024-

CON12X4/SMD/F/

OK-03F024-

04/WS3287

OCN

6 1 CON402 CON / 10 / OK-20F010-

CON5X2/SMD/P0.

4/F/OK-20F010-

04/WS3287

OCN

7 1 CON4101 CON / 12 / TA-M017-

012-07-811

MICROSD/8P/SM

D/TA-M017-012-

07-811

Smart-conn

CON501

CON / 24 / AXE520127

CON10X2/SMD/P

0.4/F/AXE520127

/WS3287

Panasonic

8 1 CON502 AXE510124 CON5X2/SMD/P0.

4/F/AXE510124/

WS3287

Panasonic

9 1 CON6001 JACK_CON/5P/EJ-

3699M-GP

AUDIOJACK/5P/S

MD/EJ-3699M-GP

Dian Jin

10 1 CON6101 QTH-060-01-FDA (120

pin)

QTH-060-01-F-D-

SAMTEC

CON6102

JUMPER 10x2

DIP/P2.54

DIP10X2/P2.54

PIN CHIH

CON6201

HE7X2 MALE_TOP

DIP7X2/P2.54

PIN CHIH

13 1 CON6301 JUMPER 12x2

DIP/P2.54

DIP12X2/P2.54 PIN CHIH

14 2 CON6401,CON6601 Proconn_8791-N005-

M1A0

MICROUSB/5P/S

MD/P0.65/R/879

1-N005-M1A0

Proconn

15 2 CON6602,CON9002 HE10X2 RA HOUSING JP10X2/P2.54/R PIN CHIH

CON9001

CON / 40 / AXT640124

/ NC

Panasonic

C201

C / 470 / nF / 0402

C0402

18 35 C501,C502,C503,C1102,

C1103,C1106,C1112,C1113,

C1118,C1121,C1122,C1123,

C1124,C1125,C1126,C1131,

C1132,C1137,C1138,C2002,

C / 1 / uF / 0402 C0402

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

C4101,C5201,C5210,C5211,

C5214,C5215,C5216,C5217,

C5220,C5226,C5231,C6016,

C6017,C6604,C6607

19 2 C1105,C1117 C / 2.2 / uF / 0402 / NC C0402

20 2 C1107,C1108 C / 10 / pF / 0402 C0402

21 10 C402,C1109,C1119,C1120,

C1139,1140,C2003,C4001,

C5212,C5223

C / 2.2 / uF / 0402 C0402

22 6 C204,C1110,C1115,C1128,

C1130,C2004

C / 10 / uF / 0603 C0603

23 9 C1114,C1127,C5218,C5219,

C5224,C5225,C5237,C5238,

C6005

C / 4.7 / uF / 0603 C0603

24 4 C505,C506,C507,C1116 C / 10 / uF / 0402 C0402

25 3 C1129,C2006,C5227 C / 22 / pF / 0402 C0402

26 2 C1133,C6608 C / 100 / nF / 0402 / NC C0402

27 16 C401,C403,C504,C1134,

C1135,C4003,C4004,C4006,

C5002,C6001,C6002,C6012,

C6018,C6020,C6021,C9001

C / 100 / nF / 0402 C0402

28 1 C1136 C / 2.2 / nF / 0402 /

X5R

C0402

29 3 C2001,C2101,C6606 C / 1 / uF / 0603 / 50V C0603

C2005,C2102

C / 22 / uF / 0603

C0603

31 2 C4002,C4005 C / 4.7 / uF / 0402 C0402

C5001

C / 2.2 / pF / 0402

C0402

33 4 C5003,C5004,C5007,C5008 C / NC / 0402 C0402

C5005,C5006,C5229,C5236,

C6601,C6602

C / 18 / pF / 0402

C0402

C5009

C / 3.6 / pF / 0402 /

GJM1555C1H3R6WB01

C0402

Murata

TP1001,TP1101,TP1102,

TP1103,TP1104,TP1105,

TP1106,TP5001,L5001,

TP5002,L5002,TP5003,

TP5201,TP5202,TP5203,

C5203,TP5204,TP5205,

TP5206,TP5207,TP5208,

TP5209,TP5210,TP5211,

TP5212,TP5213,TP5214,

TP5215,TP5216,TP6001,

TP6003,TP6004,TP6601,

TP6602,TP6603,TP6604,

TP6605,TP6606,TP6607,

TP6608,TP6609,TP6610,

TP6611,TP6612,TP9001

TP30MIL

37 1 C5206 C / 1 / pF / 0402 C0402

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

38 1 C5207 C / 1 / nF / 0402 C0402

39 3 C5208,C5209,C5213 C / 4.7 / nF / 0402 C0402

40 2 C5221,C5222 C / 22 / pF / 0402 C0402

41 1 C5228 C / 220 / nF / 0402 C0402

42 5 C5230,C5232,C5233,C5234,

C5235

C / 0402 / NC C0402

43 6 C6003,C6004,C6008,C6009,

C6010,C6011

C / 33 / pF / 0402 / NC C0402

44 1 C6006 C / 100 / pF / 0402 / NC C0402

45 2 C6007,C6025 C / 22 / uF / 0402 C0402

46 2 C6013,C6023 C / 100 / pF / 0402 C0402

47 4 C6014,C6015,C6022,C6024 C / 33 / pF / 0402 C0402

C6019

C / 4.7 / uF / 0402 /

X5R

C0402

C6605

C / 2.2 / uF / 0603

C0603

50 1 DIPX5001 DP1608-V1524CA DIPLEXER/6P/SM

D/DP1608

Advanced

Ceramic

51 3 ESD2101,ESD6402,ESD6601 ESD / AZ5825-01F VR0402 Amazing

Microelectronic

52 1 ESD2102 ESD / AZ5725-01F VR0402 Amazing

Microelectronic

53 12 ESD4101,ESD4102,ESD4103,

ESD4104,ESD4105,ESD4106,

ESD4107,ESD4108,ESD4109,

ESD6001,ESD6002,ESD6501

ESD5451NKM / NC SOD923/SMD/AK TY

Semiconductor

54 4 ESD6003,ESD6004,ESD6005,

ESD6006

ESD5Z5.0T1G SOD523/ESD5Z2.5

Semiconductor

55 2 ESD6401,ESD6602 ESD / AZ5315-02F ESD/SMD/AZ5315

-02F

Amazing

Microelectronic

56 2 ESD6502,ESD6503 ESD / ESD5311NKM

/NC

VR0402 TY

Semiconductor

57 2 ESD6504,ESD6505 ESD / AZ5325-01F /NC VR0402 Amazing

Microelectronic

58 1 F2001 2A FUSE FUSE/DIP/SMD PAN HAO

59 5 H2001,H2002,H2003,H2004,

H2005

STAND HOLE/PTH/R6D3.

60 15 J1001,J1002,J1003,J1004,

J1005,J1006,J1007,J1008,

J1009,J1010,J1011,J1012,

J1015,J1101,J2001

JMP_3P(2-3) DIP3/P2.54

J201,J202,J203,J1013,

J1014,J1018,J6501

HEADER 2X1(W/O JMP)

DIP2/P2.54

62 2 J401,J402 HEADER 2X1(W JMP) DIP2/P2.54

63 23 R404,R405,J1016,J1102,

J1103,J1104,J1106,J1108,

J1109,J1110,J1111,J1112,

J1114,J5001,J5002,J5003,

J5004,J5201,J5202,J6101,

R / 0 / ohm / 0402-

3P(1-2)

R0402/(1-2)

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

J6102,J6103,J6104,J6105,

J6106

64 1 J1105 R / 0 / ohm / 0402-

3P(1-2) / NC

R0402/(1-2)

65 1 J1113 CON3/SMD/P2.54/C11

1400/B/ACMELUX

CON3/SMD/P2.54

/C111400/B/ACM

ELUX

ACMELUX

66 4 LED2001,LED2003,LED9201,

LED9206

LED / CL190YG LED190 CITIZEN

ELECTRONIC

67 1 LED6601 LED / CL190YG / NC LED190 CITIZEN

ELECTRONIC

LED9209

LED / LAL296-P1R2-Z

LED190

OSRAM

69 3 L201,L501,L502 PL / 10 / uH / L-NR3012 L-NR3012 Taiyo Yuden

L1101

PL / MBKK1608T1R0M

/ SMD1608

L/IND/SMD/MBKK

1608

Taiyo Yuden

L1102

PL / MAKK2016T2R2M

L/IND/SMD/MAK

K2016

Taiyo Yuden

72 1 L2001 PL / MEKK2520T1R0M L/IND/SMD/2520 Taiyo Yuden

73 1 L5003 L / 6.8 / nH /

LQG15HS6N8H02D

L0402 Murata

74 1 L5201 L / 1.2 / nH / 0402 L0402

75 1 L5202 L / 1 / uH / 0806 L/IND/SMD/0402

1 L5203 L / 22 / nH / 0402 / NC L/IND/SMD/LQM

2MPN1R0NG0

76 1 L5204 L / 5.6 / nH / 0402 L0402

77 1 MIC6001 MIC / SPU0410HR5H-

L0402 Knowles

78 1 Q2101 Q / PNMT6N1-LB FILTER/SMD/SPU

0410HR5H-PB

Prisemi

79 3 Q6602,Q6603,Q9206 Q / SSM3K15AMFV DFN6/SMD/P0.65

/PNMT6N1-LB

Toshiba

80 1 Q9201 Q / SSM3K37MFV 2-

1L1B/SMD/SSM3

K35MFV

Toshiba

81 1 R204 R / 3.3 / ohm / 0402 R0402

81 2 R1002,R1003 R / 4.7 / K / 0402 2-

1L1B/SMD/SSM3

K35MFV

82 1 R1004 R / 5.1 / K / 0402 / 1% R0402

83 32 R1006,R1105,R1113,R1136,

R4005,R4009,R5005,R5009,

R5011,R5012,R5013,R5206,

R5217,R5218,R5243,R6002,

R6003,R6017,R6018,R6101,

R6616,R9011,R9012,R9013,

R9014,R9015,R9017,R9018,

R9019,R9020,R9021,R9023

R / 0 / ohm / 0402 / NC R0402

84 1 R1010 R / 1.8 / K / 0402 / 1% R0402

85 2 R1101,R2004,R5211 R / 1 / K / 0402 / NC R0402

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

86 77 R501,R502,R1102,R1103,

R1104,R1106,R1112,R1114,

R1115,R1117,R1118,R1119,

R1120,R1121,R1122,R1123,

R1124,R1125,R1126,R1135,

R1139,R2002,R2108,R2109,

R4007,R4008,R4010,R4101,

R5002,R5003,R5006,R5007,

R5010,R5201,R5205,R5216,

R5219,R5225,R5226,R5227,

R5228,R5230,R5232,R5233,

R5234,R5235,R5236,R5237,

R5238,R5239,R5240,R5241,

R5242,R6014,R6015,R6016,

R6019,R6020,R6021,R6022,

R6023,R6024,R6025,R6102,

R6103,R6301,R6302,R6303,

R6304,R6605,R6614,R6618,

R6619,R6620,R6621,R6622,

R6623

R / 0 / ohm / 0402 R0402

R1116

R / 1 / ohm / 0402

R0402

88 1 R1131 R / 100 / K / 0402 R0402

89 1 R1133 R / 430 / K / 0402 R0402

90 1 R1134 R / 360 / K / 0402 R0402

R1137,R5224,R6625,R9211

R / 0 / ohm / 0603

R0603

92 1 R2001 R / 2.2 / K / 0402 R0402

R2003

R / 1 / K / 0402

R0402

94 2 R2005,R6615 R / 510 / K / 0402 R0402

95 1 R2006 R / 91 / K / 0402 R0402

96 3 R2018,R9201,R9206 R / 1.58 / K / 0402 R0402

97 1 R2019 R / 1 / K / 0603 R0603

98 3 R2101,R5211,R6004,R6502 R / 1 / K / 0402 R0402

R2102

R / 39 / K / 0402 / 1%

R0402

100 1 R2103 R / 0.056 / ohm / 0805

/ 1%

R0805

101 1 R2104 R / 330 / K / 0402 / 1% R0402

102 2 R2105,R6001 R / 1.5 / K / 0402 R0402

103 1 R2106 R / 16.9 / K / 0402 / 1% R0402

104 1 R2107 NTC / NTCG103JF103FT

/ 0402

R0402 TDK

105 21 R4001,R4002,R4003,R4004,

R4006,R4102,R4103,R4104,

R5203,R5204,R5207,R5209,

R6624,R9002,R9003,R9004,

R9005,R9006,R9007,R9009,

R9010

R / 10 / K / 0402 / NC R0402

106 1 R5210 R / 120 / K / 0402 / NC R0402

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

107 1 R5220 R / 91 / K / 0402 / NC R0402

108 2 R6005,R6006 R / 100 / ohm / 0402 R0402

109 1 R6007 R / 470 / K / 0402 R0402

110 2 R6008,R6009 R / 470 / ohm /0402 R0402

111 1 R6010 R / 47 / K / 0402 R0402

112 2 R6011,R6012 R / 75 / K / 0402 R0402

113 1 R6013 R / 300 / K / 0402 / NC R0402

114 2 R6501,R6503 R / 20 / K / 0402 R0402

115 2 R6602,R6603 R / 33 / ohm / 0402 R0402

116 7 R5208,R6604,R6609,R6610,

R6611,R9001,R9008

R / 10 / K / 0402 R0402

117 3 R6606,R9016,R9022 R / 5.1 / K / 0402 / NC R0402

118 1 R6607 R / 6.6 / K / 0402 / NC R0402

119 1 R6608 R / 470 / ohm / 0402 /

R0402

120 1 R6617 R / 5.1 / K / 0402 R0402

115 1 R9209 R / 180 / ohm / 0402 R0402

116 1 SHORT6001 SHORT / NC-MMD-L6-

4MIL

NC-4MIL

117 2 SMA5001,SMA5002 SMA-1.66MM SMA1 PIN CHIH

118

SPK1

SPK / 2403-260-00071-

190-EN

SPEAKER/SMD/24

03-260-

00071/WS3330

EDOM

119 6 SW6501,SW6502,SW6503,

SW6504,SW6505,SW6601

KSW (DJT-1109S-2) SW/4P/SMD/SHO

WMAN

DJ TECH

120

TCXO5201

TCXO / 26 / MHz /

7L26002009

TCXO/SMD/2.5X2.

0/IT2205BE

TXC

121

U201

U / KTD2898 / TDFN22-

TDFN22/6P/SMD/

P0.65/KTD2898

Kinetic

122 1 U501 U / TPS65631W SON10/SMD/P0.5

/TPS65631W

Texas

Instruments

123 1 U1000 MT2523G MT2523G/TFBGA

246/P0.4/B0.25/9

.2X6.0

MediaTek

124

U1101

U / TPS62560

SON6/SMD/P0.65

/TPS62560

Texas

Instruments

125 2 U2001,U2002 U / SS2003M SOT-

363/6P/SMD/P0.6

5/SS2003M

Semiconductor

126

U2003

U / TPD1S514-1

DSBGA12/P0.4/B0

.225/TPD1S514

Texas

Instruments

127 1 U2004 U / TPS62065 WSON8/SMD/P0.

5/TPS62060

Texas

Instruments

128 1 U4001 U / 153 eMMC /

THGBMBG5D1KBAIL

FBGA153/P0.5/B0

.27/11.5X13/SKHY

NIX

Toshiba

129 2 U5203,U5205 U / XC6210A332MR SOT23-5 Torex

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Ite

Quantity Reference Part PCB Footprint Manufacturer

Semiconductor

130 2 U5206,U5208 U / EPOCOS_B8313 SAW/SMD/1.05X1

.35

TDK

131 1 U5207 U / BGA725L6 TSLP6/SMD/P0.4/

BGA725L6/S

Infineon

Technologies

132 1 U6001 U / TPA2010D1 WCSP9/SMD/P0.5

/B0.27/TPA2010D

Texas

Instruments

133 1 U6601 U / MK20DX128VFM5 QFN32/SMD/P0.5

/98ARE10566D

Freescale

134 1 U6604 U / NXP 74LVC125A DHVQFN14/SMD/

P0.5/74LVC125A

NXP

135 1 U6605 U / ATMEL

AT45DB161E-SHD2B-T /

SOIC8/SMD ATMEL

136 1 U6606 TCXO / SiT1533AI-H4-

D14-32768 / NC

SIT1533AI-SMD-

32768

Si-Time

137 1 X1101 X / 32 / KHz / SC-20S /

7pF

CRYSTAL/SMD/C

M8V-T1A

Seiko

Instruments

138 1 X5001 X / 26 / MHz /

8Q26000008

CRYS/SMD/D1.6X

1.2/8Q26000008

TXC

139 1 X5204 X / FC-135 32.768KHZ

12.5pF

RTC/SMD/2P/3.2X

1.5

EPSON

140 1 X6601 X / 8 / MHz / ABM3B-

8.000MHZ-18-B2-T

CRYS/SMD/5X3.2/

ABM3B-

8.000MHZ-22-B2-

ABRACON

LinkIt 2523 HDK v11 User's Guide

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

8. Appendix A: Acronyms and Abbreviations

The acronyms and abbreviations used in this user manual are listed in Table 31.

Table 31. Acronyms and abbreviations

Acronym Description Acronym Description

ADC

Analog-to-Digital Converter

Bluetooth

BLE Bluetooth Low Energy CLKO Clock out

CMSIS-

DAP

Cortex® Microcontroller Software

Interface Standard Debug Access Port

CTP Capacitive Touch Panel

eFuse Electronic Fuses EINT External interrupt

GPIO

General Purpose I/O

GPS

Global Positioning System

HDK Hardware Development Kit I2C Inter-Integrated Circuit

I2S Integrated Interchip Sound ISINK LCM backlight current sink source

JTAG

Joint Test Action Group

MIPI

Mobile Industry Processor Interface

MSDC Mass Storage Device Class NC Not connected

NTC

Negative Temperature Coefficient

OMTP

Open Mobile Terminal Platform

PCM

Pulse-code modulation

PSRAM

Pseudo Static Random Access Memory

RTC Real Time Counter SDMMC Secure Digital Multimedia Card

SPI

Serial Peripheral Interface Bus

SWD

Serial Wire Debug

TFT Thin-Film Transistor USB Universal Serial Bus

VIO18

The power rail of digital LDO output 1.8V

VIO28

The power rail of digital LDO output 2.8V.

VSF The power rail of digital LDO output for

the serial flash

VA28 The power rail of analog LDO output 2.8V.

VA18 The power rail of analog LDO output 1.8V. VBT The power rail of analog LDO output for

Bluetooth.

VCAMA

The power rail of analog LDO output for

camera.

VUSB33

The power rail of digital LDO output for USB.

VMC

The power rail of digital LDO output for

eMMC.

VBAT

The main power rail for battery charging and

system operating power source.

LinkIt 2523 HDK V11 User's Guide Link It Users

LinkIt_2523_HDK_Users_Guide

LinkIt_2523_HDK_Users_Guide

Navigation menu

Versions of this User Manual:

Views

Navigation