Quectel Wireless Solutions 201404UC15M UMTS/HSDPA module User Manual Manual

UC15 Mini PCIe

Hardware Design

UMTS/HSDPA Module Series

Rev. UC15_Mini_PCIe_Hardware_Design_V1.0

Date: 2014-07-11

www.quectel.com

UMTS/HSDPA Module Series

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About the Document

History

Revision Date Author Description

1.0 2014-07-11 Mountain ZHOU Initial

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Contents

About the Document ................................................................................................................................... 2

Contents ....................................................................................................................................................... 3

Table Index ................................................................................................................................................... 5

Figure Index ................................................................................................................................................. 6

1 Introduction .......................................................................................................................................... 7

1.1. Safety Information...................................................................................................................... 7

2 Product Concept .................................................................................................................................. 9

2.1. General Description ................................................................................................................... 9

2.2. Description of Product Version .................................................................................................. 9

2.3. Directives and Standards ........................................................................................................ 10

2.3.1. FCC Statement ............................................................................................................... 10

2.3.2. FCC Radiation Exposure Statement .............................................................................. 10

2.4. Key Features ........................................................................................................................... 10

2.5. Functional Diagram ................................................................................................................. 12

3 Application Interface ......................................................................................................................... 14

3.1. General Description ................................................................................................................. 14

3.2. UC15 Mini PCIe Interface ........................................................................................................ 14

3.2.1. Definition of Interface ..................................................................................................... 14

3.2.2. Pin Assignment .............................................................................................................. 17

3.3. Power Supply ........................................................................................................................... 18

3.4. UART Interface ........................................................................................................................ 18

3.5. USIM Card Interface ................................................................................................................ 20

3.6. USB Interface .......................................................................................................................... 23

3.7. Audio Interface ......................................................................................................................... 24

3.7.1. Digital Audio Interface .................................................................................................... 24

3.7.2. Analog Audio Interface ................................................................................................... 26

3.8. Control Signals ........................................................................................................................ 29

3.8.1. W_DISABLE# Signal ...................................................................................................... 29

3.8.2. PERST# Signal .............................................................................................................. 30

3.8.3. LED_WWAN# Signal ..................................................................................................... 30

3.9. Antenna Interface .................................................................................................................... 31

4 Electrical and Radio Characteristics ............................................................................................... 33

4.1. General Description ................................................................................................................. 33

4.2. Power Supply Requirements ................................................................................................... 33

4.3. IO Requirements ...................................................................................................................... 33

4.4. Current Consumption .............................................................................................................. 34

4.5. RF Characteristics ................................................................................................................... 35

4.6. ESD Characteristics ................................................................................................................ 36

5 Mechanical Dimensions .................................................................................................................... 37

5.1. General Description ................................................................................................................. 37

5.2. Mechanical Dimensions of UC15 Mini PCIe ........................................................................... 37

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5.3. Standard Dimensions of Mini PCI Express ............................................................................. 38

5.4. Packaging ................................................................................................................................ 39

6 Appendix Reference .......................................................................................................................... 40

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Table Index

TABLE 1: PRODUCT VERSION OF UC15 MINI PCIE ....................................................................................... 9

TABLE 2: KEY FEATURES OF UC15 MINI PCIE .............................................................................................. 11

TABLE 3: DEFINITION OF IO PARAMETERS .................................................................................................. 14

TABLE 4: DESCRIPTION OF PIN ..................................................................................................................... 15

TABLE 5: VCC_3V3 AND GND PINS ................................................................................................................ 18

TABLE 6: PIN DEFINITION OF THE UART INTERFACE ................................................................................. 19

TABLE 7: PIN DEFINITION OF THE USIM CARD INTERFACE ...................................................................... 20

TABLE 8: PIN DESCRIPTION OF AMPHENOL USIM CARD CONNECTOR .................................................. 22

TABLE 9: USB PIN DESCRIPTION .................................................................................................................. 23

TABLE 10: PIN DEFINITION OF PCM AND I2C INTERFACE .......................................................................... 25

TABLE 11: PIN DEFINITION OF ANALOG AUDIO INTERFACE ...................................................................... 26

TABLE 12: INPUT CHARACTERISTICS ........................................................................................................... 27

TABLE 13: OUTPUT CHARACTERISTICS ....................................................................................................... 27

TABLE 14: DESCRIPTION OF CONTROL SIGNAL PINS ................................................................................ 29

TABLE 15: RADIO OPERATIONAL STATES .................................................................................................... 29

TABLE 16: INDICATION OF NETWORK STATUS ............................................................................................ 31

TABLE 17: ANTENNA REQUIREMENTS .......................................................................................................... 32

TABLE 18: POWER SUPPLY REQUIREMENTS .............................................................................................. 33

TABLE 19: IO REQUIREMENTS ....................................................................................................................... 34

TABLE 20: CURRENT CONSUMPTION ........................................................................................................... 34

TABLE 21: OUTPUT POWER OF CONDUCTED RF ....................................................................................... 35

TABLE 22: RECEIVING SENSITIVITY OF CONDUCTED RF .......................................................................... 35

TABLE 23: ESD CHARACTERISTICS .............................................................................................................. 36

TABLE 24: RELATED DOCUMENTS ................................................................................................................ 40

TABLE 25: TERMS AND ABBREVIATIONS ...................................................................................................... 40

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Figure Index

FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 13

FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 17

FIGURE 3: REFERENCE DESIGN OF POWER SUPPLY ............................................................................... 18

FIGURE 4: THE DCE-DTE CONNECTION OF UART INTERFACE ................................................................ 19

FIGURE 5: RS232 LEVEL MATCH CIRCUIT .................................................................................................... 20

FIGURE 6: REFERENCE CIRCUIT OF THE 6 PIN USIM CARD ..................................................................... 21

FIGURE 7: AMPHENOL C707 10M006 512 2 USIM CARD CONNECTOR ..................................................... 22

FIGURE 8: REFERENCE CIRCUIT OF USB INTERFACE .............................................................................. 23

FIGURE 9: SHORT SYNC MODE TIMING ....................................................................................................... 24

FIGURE 10: LONG SYNC MODE TIMING ....................................................................................................... 25

FIGURE 11: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 26

FIGURE 12: MICROPHONE REFERENCE DESIGN ....................................................................................... 27

FIGURE 13: REFERENCE DESIGN OF RECEIVER ....................................................................................... 28

FIGURE 14: REFERENCE DESIGN WITH AN AMPLIFIER FOR SPEAKER .................................................. 28

FIGURE 15: REFERENCE DESIGN OF EARPHONE ...................................................................................... 28

FIGURE 16: TIMING OF RESETTING MODULE ............................................................................................. 30

FIGURE 17: REFERENCE CIRCUIT OF LED_WWAN# .................................................................................. 30

FIGURE 18: UC15 MINI PCIE ANTENNA INTERFACE .................................................................................... 31

FIGURE 19: DIMENSIONS OF THE RF CONNECTOR (UNIT: MM) ............................................................... 31

FIGURE 20: MECHANICALS OF UF.L-LP CONNECTORS ............................................................................. 32

FIGURE 21: MECHANICAL DIMENSIONS OF UC15 MINI PCIE (UNIT: MM) ................................................. 37

FIGURE 22: STANDARD DIMENSIONS OF MINI PCI EXPRESS (UNIT: MM) ............................................... 38

FIGURE 23: DIMENSIONS OF THE MINI PCI EXPRESS CONNECTOR (UNIT: MM) ................................... 39

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1 Introduction

This document defines UC15 Mini PCIe module and describes its hardware interfaces which are

connected with your application and air interfaces.

This document can help you to quickly understand the interface specifications, electrical and mechanical

details and related product information of the UC15 Mini PCIe module. Associated with application notes

and user guide of UC15 Mini PCIe module, you can use the module to design and set up mobile

applications easily.

1.1. Safety Information

The following safety precautions must be observed during all phases of the operation, such as usage,

service or repair of any cellular terminal or mobile incorporating UC15 Mini PCIe module. Manufacturers

of the cellular terminal should send the following safety information to users and operating personnel and

to incorporate these guidelines into all manuals supplied with the product. If not so, Quectel does not take

on any liability for customer failure to comply with these precautions.

Full attention must be given to driving at all times in order to reduce the risk of an

accident. Using a mobile while driving (even with a handsfree kit) cause distraction

and can lead to an accident. You must comply with laws and regulations restricting

the use of wireless devices while driving.

Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it

switched off. The operation of wireless appliances in an aircraft is forbidden to

prevent interference with communication systems. Consult the airline staff about

the use of wireless devices on boarding the aircraft, if your device offers a Airplane

Mode which must be enabled prior to boarding an aircraft.

Switch off your wireless device when in hospitals or clinics or other health care

facilities. These requests are desinged to prevent possible interference with

sentitive medical equipment.

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Cellular terminals or mobiles operate over radio frequency signal and cellular

network and cannot be guaranteed to connect in all conditions, for example no

mobile fee or an invalid SIM card. While you are in this condition and need

emergent help, please remember using emergency call. In order to make or

receive call, the cellular terminal or mobile must be switched on and in a service

area with adequate cellular signal strength.

Your cellular terminal or mobile contains a transmitter and receiver. When it is ON,

it receives and transmits radio frequency energy. RF interference can occur if it is

used close to TV set, radio, computer or other electric equipment.

In locations with potencially explosive atmospheres, obey all posted signs to turn

off wireless devices such as your phone or other cellular terminals. Areas with

potencially exposive atmospheres including fuelling areas, below decks on boats,

fuel or chemical transfer or storage facilities, areas where the air contains

chemicals or particles such as grain, dust or metal powders.

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2 Product Concept

2.1. General Description

UC15 Mini PCIe module is a cost effective UMTS/HSDPA module featuring a maximum data rate of

3.6Mbps downlink and 384kbps uplink, according to PCI Express Mini Card 1.2 standard, supports

embedded operating system such as WinCE, Linux and Android etc.

UC15 Mini PCIe module can be applied in the following fields:

 PDAs and Laptop Computer

 Remote Monitor System

 Vehicle System

 Wireless POS System

 Intelligent Meter Reading System

 Wireless Router and Switch

 Other Wireless Terminal Device

This chapter generally introduces the following aspects of UC15 Mini PCIe module:

 Product Version

 Key Features

 Functional Diagram

2.2. Description of Product Version

The following table shows the product version of UC15 Mini PCIe module.

Table 1: Product Version of UC15 Mini PCIe

Product Version Description

Telematics Support voice and data.

Data Only Support data only.

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2.3. Directives and Standards

The UC15 Mini PCIe module is designed to comply with the FCC statements.FCC ID:XMR201404UC15M

If the FCC ID of the module cannot be seen by the user in the final installation, the host device must show

the statement: “Contains FCC ID: XMR201404UC15M” in a visible and permanent location”

2.3.1. FCC Statement

1. This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions:

a) This device may not cause harmful interference.

b) This device must accept any interference received, including interference that may cause undesired

operation.

2. Changes or modifications not expressly approved by the party responsible for compliance could avoid

the user’s authority to operate the equipment.

2.3.2. FCC Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with minimum distance 20cm between the radiator and

your body as well as kept minimum 20cm from radio antenna depending on the Mobile status of this

module usage. This module should NOT be installed and operating simultaneously with other radio.

The manual of the host system, which uses UC15 Mini PCIe, must include RF exposure warning

statement to advice user should keep minimum 20cm from the radio antenna of UC15 Mini PCIe module

depending on the mobile status.

Note: If a portable device (such as PDA) uses UC15 Mini PCIe module, the device needs to do

permissive change and SAR testing.

The following list of antenna is indicating the maximum permissible antenna gain.

Part Number

Frequency

Range (MHz)

Peak Gain

(XZ-V)

Average Gain

(XZ-V) VSWR Impedance

3R007A

GSM850:824~849

PCS1900:1850~1990

UMTS1900:1850~1990

UMTS850:824-894

1 dBi typ. 1 dBi typ. 3 max 50Ω

2.4. Key Features

The following table describes the detailed features of UC15 Mini PCIe module.

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Table 2: Key Features of UC15 Mini PCIe

Feature Details

Function Interface PCI Express Mini Card 1.2 Standard Interface

Power Supply Supply voltage: 3.0~3.6V

Typical supply voltage: 3.3V

Frequency Bands GSM850/900/1800/1900, UMTS850/1900

Transmission Data

HSDPA R5: Max 3.6Mbps (DL)

UMTS R99: Max 384kbps (DL)/Max 384kbps (UL)

EDGE: Max 236.8kbps (DL only)

GPRS: Max 85.6kbps (DL)/Max 85.6kbps (UL)

CSD: 64kbps

Transmitting Power

Class 4 (33dBm±2dB) for GSM850 and EGSM900

Class 1 (30dBm±2dB) for DCS1800 and PCS1900

Class E2 (27dBm±3dB) for GSM850 and EGSM900

Class E2 (26dBm+3/-4dB) for DCS1800 and PCS1900

Class 3 (24dBm+1/-3dB) for UMTS850/1900

HSDPA and WCDMA

Features

HSDPA data rate is corresponded with 3GPP R5. 3.6Mbps on downlink.

WCDMA data rate is corresponded with 3GPP R99/R4. 384kbps on

downlink and 384kbps on uplink.

Support both QPSK and 16-QAM modulation.

GSM/GPRS/EDGE

Data Features

GPRS: Support GPRS multi-slot class 12 (10 by default).

Coding scheme: CS-1, CS-2, CS-3 and CS-4.

Maximum of four Rx time slots per frame.

EDGE: Support EDGE multi-slot class 12 (12 by default).

Support GMSK for different MCS (Modulation and Coding

Scheme).

Downlink coding schemes: CS 1-4 and MCS 1-9.

CSD: CSD transmission rates: 64kbps non-transparent.

Support Unstructured Supplementary Services Data (USSD).

Internet Protocol Features

Support TCP/IP/PPP/UDP protocols.

Support the protocols PAP (Password Authentication Protocol) and

CHAP (Challenge Handshake Authentication Protocol) usually used for

PPP connections.

SMS

Text and PDU mode

Point to point MO and MT

SMS cell broadcast

SMS storage: ME by default

USIM Interface Support USIM/SIM card: 1.8V, 3.0V

UART Interface

Support seven lines on UART interface.

Support RTS and CTS hardware flow control.

Baud rate can reach up to 230400 bps, 115200 bps by default.

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1. “▲” means when the module works within this temperature range, RF performance might degrade.

For example, the frequency error or the phase error may increase.

2. “*” means these functions are only supported in Telematics version.

2.5. Functional Diagram

The following figure shows a block diagram of UC15 Mini PCIe and illustrates the major functional parts:

 USIM/SIM card interface (1.8V/3.0V)

 USB 2.0 interface

 UART interface (seven lines)

Used for AT command and data transmission.

Support multiplexing function.

Analog Audio Interface*

Support one differential input and one differential output channel.

GSM: HR/FR/EFR/AMR/AMR-WB

WCDMA: AMR/AMR-WB

Echo cancellation and noise suppression

PCM Digital Audio

Interface*

Support 16-bit linear data formats.

Support long frame sync and short frame sync.

Support master and slave mode, but must be the master in long frame

sync.

USB Interface

Compliant with USB 2.0 specification (slave only), the data transfer rate

can reach up to 480 Mbps.

Used for AT command communication, data transmission, software

debug and firmware upgrade.

USB Driver: Support Windows XP, Windows Vista, Windows 7, Windows

8, WinCE 5.0/6.0, Windows Mobile 6.1/6.5, Linux 2.6 or later, Android 2.3

or later.

Antenna Interface One GSM/UMTS antenna connector.

AT Commands Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT

commands.

Physical Characteristics Size: 51.0 × 30.0 × 4.9mm

Weight: Approx. 9.3g

Temperature Range

Normal operation: -30°C ~ +70°C

Restricted operation: -40°C ~ -30°C and +70°C ~ +80°C▲

Storage temperature: -45°C ~ +90°C

Firmware Upgrade USB interface

RoHS All hardware components are fully compliant with EU RoHS directive.

NOTES

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 Audio interface

 I2C interface

 Support LED status indication

 Support disabling wireless communication function

 Support hardware reset function

 Support GSM/UMTS antenna interface

Mini PCI Express

Interface

Figure 1: Functional Diagram

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3 Application Interface

3.1. General Description

The physical connections and signal levels of UC15 Mini PCIe comply with PCI Express Mini CEM

specifications. This chapter mainly describes the definition of following interfaces and applications of

UC15 Mini PCIe.

 Power supply

 UART interface

 USIM interface

 USB interface

 Audio interface

 Antenna interface

 Control signals (W_DISABLE#, PERST# and LED_WWAN#)

3.2. UC15 Mini PCIe Interface

3.2.1. Definition of Interface

The following tables show the pin assignments of UC15 Mini PCIe on the 52-pin application.

Table 3: Definition of IO Parameters

Type Description

AI Analog input

AO Analog output

DI Digital input

DO Digital output

IO Bidirectional input/output

OC Open collector

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Table 4: Description of Pin

PI Power input

PO Power output

Pin No.

Mini PCI Express

Standard Name

UC15 Mini PCIe

Name I/O Description Comment

1 WAKE# MICP* AI Audio positive input

2 3.3Vaux VCC_3V3 PI 3.3V DC supply

3 COEX1 MICN* AI Audio negative input

4 GND GND — Mini card ground

5 COEX2 SPKP* AO Audio positive output

6 1.5V NC — —

7 CLKREQ# SPKN* AO Audio negative output

8 UIM_PWR USIM_VDD PO Power source for the USIM

card

9 GND GND — Mini card ground

10 UIM_DATA USIM_DATA IO USIM data signal

11 REFCLK- UART_RX DI UART receives data Connect to

DTE’s TX.

12 UIM_CLK USIM_CLK DO USIM clock signal

13 REFCLK+ UART_TX DO UART transmits data Connect to

DTE’s RX.

14 UIM_RESET USIM_RST DO USIM reset signal

15 GND GND — Mini card ground

16 UIM_VPP RESERVED — Reserved

17 RESERVED UART_RI DO UART ring indicator

18 GND GND — Mini card ground

19 RESERVED RESERVED — Reserved

20 W_DISABLE# W_DISABLE# DI Disable wireless

communications Active low.

21 GND GND — Mini card ground

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22 PERST# PERST# DI Functional reset to the card Active low

pulse.

23 PERn0 UART_CTS DI UART clear to send Connect to

DTE’s RTS.

24 3.3Vaux RESERVED — Reserved

25 PERp0 UART_RTS DO UART request to send Connect to

DTE’s CTS.

26 GND GND — Mini card ground

27 GND GND — Mini card ground

28 1.5V NC — —

29 GND GND — Mini card ground

30 SMB_CLK I2C_SCL DO I2C clock signal

31 PETn0 UART_DTR DI UART data terminal ready

32 SMB_DATA I2C_SDA IO I2C data signal

33 PETp0 UART_DCD DO UART data carrier detection

34 GND GND — Mini card ground

35 GND GND — Mini card ground

36 USB_D- USB_DM IO USB differential data (-)

37 GND GND — Mini card ground

38 USB_D+ USB_DP IO USB differential data (+)

39 3.3Vaux VCC_3V3 PI 3.3V DC supply

40 GND GND — Mini Card ground

41 3.3Vaux VCC_3V3 PI 3.3V DC supply

42 LED_WWAN# LED_WWAN# OC

Active-low LED signal for

indicating the state of the

card

43 GND GND — Mini card ground

44 LED_WLAN# RESERVED — Reserved

45 RESERVED PCM_CLK* IO PCM clock signal

46 LED_WPAN# RESERVED — Reserved

47 RESERVED PCM_DOUT* DO PCM data output

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1. PCM and analog audio interface are only supported in Telematics version.

2. Keep all NC, reserved and unused pins unconnected.

3.2.2. Pin Assignment

The following figure shows the pin assignment of UC15 Mini PCIe module. The top side contains UC15

module and antenna connectors.

Figure 2: Pin Assignment

48 1.5V NC — —

49 RESERVED PCM_DIN* DI PCM data input

50 GND GND — Mini card ground

51 RESERVED PCM_SYNC* IO PCM frame sync signal

52 3.3Vaux VCC_3V3 PI 3.3V DC supply

NOTES

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3.3. Power Supply

The following table shows the VCC_3V3 pins and ground pins.

Table 5: VCC_3V3 and GND Pins

The typical supply voltage of UC15 Mini PCIe is 3.3V. In the 2G networks, the input peak current may

reach to 2.7A during the transmitting time, therefore the power supply must be able to provide enough

current, and a bypass capacitor of no less than 100µF with low ESR should be used to prevent the

voltage from dropping.

The following figure shows a reference design of power supply. The precision of resistor R2 and R3 is 1%,

and the capacitor C3 needs a low ESR.

Figure 3: Reference Design of Power Supply

3.4. UART Interface

The following table shows the pin definition of the UART interface.

Pin No. Pin Name I/O Description

2, 39, 41, 52 VCC_3V3 PI 3.3V DC supply.

4, 9, 15, 18, 21, 26, 27, 29,

34, 35, 37, 40, 43, 50 GND — Mini card ground.

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Table 6: Pin Definition of the UART Interface

The UART interface supports 300, 600, 1200, 4800, 9600, 19200, 38400, 57600, 115200 and 230400bps

baud rate. The default is 115200bps. Autobauding is not supported. This interface can be used for data

transmission and AT communication.

UC15 Mini PCIe is designed as the DCE, and the DCE-DTE connection of UART interface is shown as

below.

Figure 4: The DCE-DTE Connection of UART Interface

The following figure is an example of connection between UC15 Mini PCIe and PC. Since the UART

interface does not support the RS-232 level, RS-232 level translator IC must be inserted between module

and PC. The following figure shows the reference design of RS232 level match circuit.

Pin No. Pin Name I/O Description

Power Domain

11 UART_RX DI

UART receives data 3.3V

13 UART_TX

DO

UART transmits data 3.3V

17 UART_RI

DO

UART ring indicator 3.3V

23 UART_CTS DI

UART clear to send 3.3V

25 UART_RTS DO

UART request to send 3.3V

31 UART_DTR DI UART data terminal ready 3.3V

33 UART_DCD DO UART data carrier detection 3.3V

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Figure 5: RS232 Level Match Circuit

1. The hardware flow control is disabled by default. AT command AT+IFC=2,2 is used to enable the

hardware flow control. AT command AT+IFC=0,0 is used to disable the hardware flow control. For

more details, please refer to document [2].

2. AT command AT+IPR is used to set the baud rate of the UART. Please refer to document [2] for

details.

3. UART_DTR supports sleep control function. Driving it to low level will wake up the module, and it can

be disabled by command AT+QCFG="pwrsavedtr",0. Meanwhile, the rising edge on UART_DTR

will let the module exit from data mode. Refer to document [2] of command AT&D for details.

4. UART_DCD is used as data transferring indication. You can refer to document [2] for details of

AT&C command. This pin can also be used as AP_READY function, which can detect the host sleep

state to avoid the URC loss during the time when the host is waking up from the sleep state. For

details about AP_READY, please contact Quectel technical support.

3.5. USIM Card Interface

The following table shows the pin definition of the USIM card interface.

Table 7: Pin Definition of the USIM Card Interface

Pin No. Pin Name I/O Description

Power Domain

8 USIM_VDD

PO

Power for the USIM/SIM card. 1.8V/3.0V

NOTES

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UC15 Mini PCIe supports 1.8V and 3.0V USIM cards. The following figure shows the reference design of

the 6-pin USIM card.

Figure 6: Reference Circuit of the 6 Pin USIM Card

In order to enhance the reliability and availability of the USIM card in your application, please follow the

criteria below in the USIM circuit design:

 Keep layout of USIM card as close to the module as possible. Assure the length of the trace as less

than 200mm as possible.

 Keep USIM card signal away from RF and power supply alignment.

 The decouple capacitor of USIM_VDD should be less than 1uF and must be close to USIM

connector.

 To avoid cross-talk between USIM_DATA and USIM_CLK, keep them away from each other and

shield them with surrounding ground.

 In order to offer good ESD protection, it is recommended to add TVS such as WILL

(http://www.willsemi.com) ESDA6V8AV6. The 22Ω resistors should be added in series between the

module and USIM card so as to suppress the EMI spurious transmission and enhance the ESD

protection. The 33pF capacitors are used for filtering interference of EGSM900. Please note that the

USIM peripheral circuit should be close to the USIM connector.

 The pull-up resistor on USIM_DATA line can improve anti-jamming capability when long layout trace

and sensitive occasion are applied.

10 USIM_DATA IO USIM/SIM data signal. 1.8V/3.0V

12 USIM_CLK DO USIM/SIM clock signal. 1.8V/3.0V

14 USIM_RST

DO

USIM/SIM reset signal. 1.8V/3.0V

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For 6-pin USIM connector, it is recommended to use Amphenol C707 10M006 512 2. Please visit

http://www.amphenol.com for more information.

Figure 7: Amphenol C707 10M006 512 2 USIM Card Connector

Table 8: Pin Description of Amphenol USIM Card Connector

Name Pin Function

VDD C1 USIM card power supply

RST C2 USIM card reset

CLK C3 USIM card clock

GND C5 Ground

VPP C6 Not connected

DATA I/O C7 USIM card data

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3.6. USB Interface

The following table shows the pin definition of USB interface.

Table 9: USB Pin Description

UC15 Mini PCIe is compliant with USB 2.0 specification. It can only be used as a slave device. Meanwhile,

it supports high speed (480 Mbps), full speed (12 Mbps) and low speed (1.5 Mbps) mode. The USB

interface can be used for AT command, data transmission, software debug and firmware upgrade. The

following figure shows the reference circuit of USB interface.

Module

USB_ DP

USB_DM

GND

MCU

Differential layout

USB_DP

USB_DM

GND

NM_2pF

VCC_MCU

VCC

Figure 8: Reference Circuit of USB Interface

To ensure the USB interface design corresponds with the USB 2.0 specification, please comply with the

following principles.

 It is important to route the USB signal traces as differential pairs with total grounding. The impedance

of USB differential trace is 90ohm.

 Do not route signal traces under crystals, oscillators, magnetic devices and RF signal traces. It is

important to route the USB differential traces in inner-layer with ground shielding, and not only upper

and lower layer but also right and left side should be shielded.

 If you use the USB connector, you should install the ESD components as close to the USB connector

as possible. Pay attention to the influence of junction capacitance of ESD component on USB data

lines. Typically, the capacitance value should be less than 2pF (e.g.ESD9L5.0ST5G).

Pin No.

Pin Name I/O Description Comment

36 USB_DM IO USB differential data (-). Require differential impedance of 90Ω.

38 USB_DP IO USB differential data (+). Require differential impedance of 90Ω.

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There are three preconditions when enabling UC15 Mini PCIe to enter the sleep mode:

1. Execute AT command AT+QSCLK=1 to enable the sleep mode. Refer to document [2].

2. UART_DTR pin should be kept in high level (pull-up internally).

3. USB interface on Mini PCIe must be connected with your USB interface, and guarantee USB devices

are in the suspended state.

3.7. Audio Interface

3.7.1. Digital Audio Interface

UC15 Mini PCIe Telematics version provides one Pulse Code Modulation (PCM) digital audio interface,

which supports the following modes.

 Short sync mode (works as both master and slave)

 Long sync mode (works as master only)

When module works in the short sync mode, PCM_CLK=2048kHz and PCM_SYNC=8kHz. The data is

sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC

falling edge represents the MSB.

When module works in the long sync mode, PCM_CLK=128kHz and PCM_SYNC=8kHz. The data is

sampled on the falling edge of the PCM_CLK and transmitted on the rising edge, and the PCM_SYNC

rising edge represents the MSB.

The following figures show timing relationship of these two modes.

Figure 9: Short Sync Mode Timing

NOTES

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Figure 10: Long Sync Mode Timing

I2C interface can be used to work with PCM interface for the audio codec design. The following table

shows the pin definition of PCM and I2C interfaces.

Table 10: Pin Definition of PCM and I2C Interface

Module firmware has integrated the configuration on NAU8814 application with I2C interface, and works

in short sync mode by default. You can enable this configuration with command AT+QDAI=2, and

AT+QAUDPATH=2 will configure the audio channel to PCM interface, AT+QAUDPATH=0 configures the

audio channel to analog audio interface. Refer to document [2] for details.

Pin No.

Pin Name I/O Description Power Domain

30 I2C_SCL DO I2C clock signal Require external pull-up to 2.6V.

32 I2C_SDA IO I2C data signal Require external pull-up to 2.6V.

45 PCM_CLK IO PCM clock signal 2.6V

47 PCM_DOUT DO PCM data output 2.6V

49 PCM_DIN DI PCM data input 2.6V

51 PCM_SYNC IO PCM frame sync signal 2.6V

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The following figure shows the reference design of PCM interface with external codec IC.

Figure 11: Reference Circuit of PCM Application with Audio Codec

It is recommended to reserve RC (R=22Ω, C=22pF) circuit on the PCM lines, especially for PCM_CLK.

3.7.2. Analog Audio Interface

UC15 Mini PCIe Telematics version supports one differential input and output analog audio interface, and

this interface works as the default audio channel. The following tables show the pin definition and

characteristics of analog audio interface.

Table 11: Pin Definition of Analog Audio Interface

Pin No. Pin Name I/O Description

1 MICP AI Audio positive input.

3 MICN AI Audio negative input.

5 SPKP AO Audio positive output.

7 SPKN AO Audio negative output.

NOTE

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Table 12: Input Characteristics

Table 13: Output Characteristics

The following parts show the reference design of audio applications.

Figure 12: Microphone Reference Design

Parameter Min. Typ. Max. Unit

Working Voltage 1.65 1.8 1.95 V

Working Current 20 1000 uA

Parameter Min. Typ. Max. Unit

Supply Voltage 2.0 2.1 2.2 V

Load Resistance 25.6 32 ohm

Output Power 50 mW

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Figure 13: Reference Design of Receiver

Figure 14: Reference Design with an Amplifier for Speaker

Texas Instruments TPA6205A1 is recommended for a suitable differential audio amplifier.

1

2

4

3

MICP

22uF

68R

33pF

GND

AGND

Close to connector

33pF

10pF

GND

Module 4.7uF

SPKP

Close to module

GND

33pF

Differential

layout

33pF

MICN 0603

0603

0603 0603

06030603

0603

10pF

GND

10pF

0603

10pF

0R

GND AGND

Earphone

Interface

Figure 15: Reference Design of Earphone

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You can use AT+QMIC to adjust the input gain level of microphone, use AT+CLVL to adjust the output

gain level of receiver and speaker. AT+QSIDET is to set the side-tone gain level. For more details, please

refer to document [2].

The 33pF capacitors and 10pF capacitors are applied for filtering out 850/900/1800/1900MHz RF

interference. However, the self-resonant frequency point of capacitor largely depends on the material and

production technique. Therefore, you should depend on the capacitor vendor to choose the most suitable

capacitor for filtering out GSM850, EGSM900, DCS1800 and PCS1900 separately.

In order to decrease radio or other signal interference, RF antenna should be kept away from audio

interface and audio alignment. Power alignment and audio alignment should not be parallel, and power

alignment should be far away from audio alignment. The differential audio traces should be placed

according to the differential signal layout rules.

3.8. Control Signals

The following table shows the pin definition of control signals.

Table 14: Description of Control Signal Pins

3.8.1. W_DISABLE# Signal

UC15 Mini PCIe provides W_DISABLE# signal to disable wireless communications through hardware

operation. The following table shows the radio operational states of module. Please refer to document [2]

for related AT commands.

Table 15: Radio Operational States

Pin No.

Pin Name I/O

Power Domain

Description

20 W_DISABLE#

DI

3.3V Disable wireless communications. Active

low.

22 PERST#

DI

3.3V Functional reset to the card. Active low

pulse.

42 LED_WWAN#

OC

— Active-low LED signal for indicating the

state of the card.

W_DISABLE# AT Commands Radio Operation

High Level AT+CFUN=1 Enabled

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3.8.2. PERST# Signal

The PERST# signal can be used to force a hardware reset on the card. You can reset the module by

driving the PERST# to a low level voltage for 0.05~0.2s and then release it. The reset scenario is

illustrated in the following figure.

VIL ≤ 0.35V

VIH ≥ 2.3V

VCC_3V3

0.05~0.2s

RESETTING

Module

Status RUNNING

PERST#

RUNNING

≥ 5s

Figure 16: Timing of Resetting Module

3.8.3. LED_WWAN# Signal

The LED_WWAN# signal of UC15 Mini PCIe is used to indicate the network status of the module, which

can absorb the current up to 40mA. According to the following circuit, in order to reduce the current of the

LED, a resistor must be placed in series with the LED. The LED is emitting light when the LED_WWAN#

output signal is active low.

Figure 17: Reference Circuit of LED_WWAN#

The following table shows the indications of network status of the LED_WWAN# signal.

High Level AT+CFUN=0

AT+CFUN=4 Disabled

Low Level

AT+CFUN=0

AT+CFUN=1

AT+CFUN=4

Disabled

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Table 16: Indication of Network Status

3.9. Antenna Interface

The following figures show the location of antenna interface and describe the overall size of RF

connector.

Figure 18: UC15 Mini PCIe Antenna Interface

Figure 19: Dimensions of the RF Connector (Unit: mm)

LED_WWAN# Description

Low Level (Light on) Registered network.

High-impedance (Light off)

 No network coverage or not registered.

 W_DISABLE# signal is in low level.

 AT+CFUN=0 or AT+CFUN=4.

 Module gets into sleep mode.

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You can use U.FL-LP serial connector listed in the following figure to match the ECT818000117. For more

details, please visit http://www.hirose.com.

Figure 20: Mechanicals of UF.L-LP Connectors

The following table shows the requirements on GSM/UMTS antenna.

Table 17: Antenna Requirements

Type Requirements

GSM850/EGSM900/UMTS850 Cable insertion loss < 0.5dB.

DCS1800/PCS1900//UMTS1900 Cable insertion loss < 0.9dB.

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4 Electrical and Radio Characteristics

4.1. General Description

This chapter mainly describes the following electrical and radio characteristics of UC15 Mini PCIe:

 Power supply requirements

 IO requirements

 Current consumption

 RF characteristics

 ESD characteristics

4.2. Power Supply Requirements

The input voltage of UC15 Mini PCIe is 3.3V±9%, as specified by PCI Express Mini CEM Specifications

1.2. The following table shows the power supply requirements of UC15 Mini PCIe.

Table 18: Power Supply Requirements

4.3. IO Requirements

The following table shows the IO requirements of UC15 Mini PCIe.

Parameter Description Min. Typ. Max. Unit

VCC_3V3 Power supply 3.0 3.3 3.6 V

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Table 19: IO Requirements

1. VDDIO=2.6V for PCM interface, and 3.3V for other digital interfaces.

2. The maximum value of VIL for PERST# signal is 0.35V.

4.4. Current Consumption

The current consumptions of UC15 Mini PCIe in different scenarios are respectively shown below.

Table 20: Current Consumption

Parameter Description Min. Max. Unit

VIH Input high voltage 0.7*VDDIO VDDIO+0.3 V

VIL Input low voltage -0.3 0.2*VDDIO V

VOH Output high voltage VDDIO-0.5 VDDIO V

VOL Output low voltage 0 0.4 V

Description Conditions Typ. Unit

Sleep

GSM (USB disconnected) @DRX=2

GSM (USB disconnected) @DRX=9

UMTS (USB disconnected) @DRX=6

UMTS (USB disconnected) @DRX=9

5.5

3.5

5.8

3.3

mA

Idle

GSM(USB connected) @DRX=2

GSM(USB disconnected) @DRX=2

UMTS(USB connected) @DRX=6

UMTS(USB disconnected) @DRX=6

80

50

80

45

mA

GSM

Voice Call

GSM850 @PCL5

EGSM900 @PCL5

DCS1800 @PCL0

PCS1900 @PCL0

340

320

262

260

mA

UMTS

Voice Call

UMTS850 @max power

UMTS1900 @max power

570

650 mA

GPRS Data Transfer

GSM850 (1UL/1DL) @PCL5

GSM850 (2UL/3DL) @PCL5

EGSM900 (1UL/1DL) @PCL5

300

410

290

mA

NOTES

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4.5. RF Characteristics

The following tables show output power and receiving sensitivity of conducted RF of UC15 Mini PCIe

module.

Table 21: Output Power of Conducted RF

Table 22: Receiving Sensitivity of Conducted RF

EGSM900 (2UL/3DL) @PCL5

DCS1800 (1UL/1DL) @PCL0

DCS1800 (2UL/3DL) @PCL0

PCS1900 (1UL/1DL) @PCL0

PCS1900 (2UL/3DL) @PCL0

401

241

333

235

320

UMTS Data Transfer UMTS850 (HSDPA) @max power

UMTS1900 (HSDPA) @max power

500

570 mA

Frequency Max. Min.

GSM850 33dBm±2dB 5dBm±5dB

EGSM900 33dBm±2dB 5dBm±5dB

DCS1800 30dBm±2dB 0dBm±5dB

PCS1900 30dBm±2dB 0dBm±5dB

GSM850 (8-PSK) 27dBm±3dB 5dBm±5dB

EGSM900 (8-PSK) 27dBm±3dB 5dBm±5dB

DCS1800 (8-PSK) 26dBm+3/-4dB 0dBm±5dB

PCS1900 (8-PSK) 26dBm+3/-4dB 0dBm±5dB

UMTS850 24dBm+1/-3dB -56dBm±5dB

UMTS1900 24dBm+1/-3dB -56dBm±5dB

Frequency Receive Sensitivity (Typ.)

GSM850 -108.5dBm

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4.6. ESD Characteristics

The following table shows characteristics of UC15 Mini PCIe ESD.

Table 23: ESD Characteristics

EGSM900 -108.5dBm

DCS1800 -108.5dBm

PCS1900 -108.5dBm

UMTS850 -110dBm

UMTS1900 -110dBm

Parameter Contact Discharge Air Discharge Unit

Power Supply and GND ±5 ±10 kV

Antenna Interface ±4 ±8 kV

USB Interface ±4 ±8 kV

USIM Interface ±4 ±8 kV

Others ±0.5 ±1 kV

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5 Mechanical Dimensions

5.1. General Description

This chapter mainly describes the following dimensions of UC15 Mini PCIe:

 Mechanical Dimensions of UC15 Mini PCIe

 Standard Dimensions of Mini PCI Express

 Packaging

5.2. Mechanical Dimensions of UC15 Mini PCIe

Figure 21: Mechanical Dimensions of UC15 Mini PCIe (Unit: mm)

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5.3. Standard Dimensions of Mini PCI Express

The following figure shows the standard Dimensions of Mini PCI Express. Please refer to document [1]

for detail A and detail B.

Figure 22: Standard Dimensions of Mini PCI Express (Unit: mm)

UC15 Mini PCIe adopts a standard Mini PCI Express connector which compiles with the standards listed

in the document [1]. The following figure takes the Molex 679100002 as an example.

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Figure 23: Dimensions of the Mini PCI Express Connector (Unit: mm)

5.4. Packaging

The UC15 Mini PCIe is packaged in tray. Each tray contains 10pcs of modules. The smallest package of

UC15 Mini PCIe contains 100pcs.

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6 Appendix Reference

Table 24: Related Documents

Table 25: Terms and Abbreviations

SN Document Name Remark

[1] PCI Express Mini Card Electromechanical

Specification Revision 1.2 Mini PCI Express Specification.

[2] Quectel_UC15_AT_Commands_Manual UC15 AT Commands Manual.

Abbreviation Description

bps Bits Per Second

CS Coding Scheme

CSD Circuit Switched Data

CTS Clear to Send

DCE Data Communications Equipment (typically module)

DL Down Link

DTE Data Terminal Equipment (typically computer, external controller)

DTR Data Terminal Ready

EMC Electromagnetic Compatibility

ESD Electrostatic Discharge

GMSK Gaussian Minimum Shift Keying

GSM Global System for Mobile Communications

HSDPA High Speed Downlink Packet Access

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I/O Input/Output

kbps Kilo Bits Per Second

LED Light Emitting Diode

Mbps Million Bits Per Second

MMS Multimedia Messaging Service

MO Mobile Originated

MT Mobile Terminated

PAP Password Authentication Protocol

PCM Pulse Code Modulation

PDU Protocol Data Unit

PPP Point-to-Point Protocol

RF Radio Frequency

RX Receive Direction

SIM Subscriber Identification Module

SMS Short Message Service

TDMA Time Division Multiple Access

TE Terminal Equipment

TX Transmitting Direction

UART Universal Asynchronous Receiver & Transmitter

UL Up Link

UMTS Universal Mobile Telecommunications System

URC Unsolicited Result Code

USSD Unstructured Supplementary Service Data

WCDMA Wideband Code Division Multiple Access

Quectel Wireless Solutions 201404UC15M UMTS/HSDPA module User Manual Manual

Quectel Wireless Solutions Company Limited UMTS/HSDPA module Manual

Manual

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