Simcom 1009092010007 GSM/GPRS/EDGE/WCDMA module User Manual SIM5215A HD V1 02 100826

Shanghai Simcom Ltd. GSM/GPRS/EDGE/WCDMA module SIM5215A HD V1 02 100826

Installation instructions

Hardware Design SIM5215A _HD_V1.02
Document Title: SIM5215A Hardware Design Version: 1.02 Date: 2010-08-26 Status: Release Document Control ID: SIM5215A _HD_V1.02 General Notes SIMCOM offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCOM. The information provided is based upon requirements specifically provided to SIMCOM by the customers. SIMCOM has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession. Furthermore, system validation of this product designed by SIMCOM within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications supplied herein are subject to change. NOTICE: This device complies with Part 15 of the FCC Rules [and with RSS-210 of Industry Canada]. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications made to this equipment not expressly approved by SIMCOM may void the FCC authorization to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 2This Class [B] digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe [*] est conforme à la norme NMB-003 du Canada. Radiofrequency radiation exposure Information: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Copyright This document contains proprietary technical information which is the property of SIMCOM Limited., copying of this document and giving it to others and the using or communication of the contents thereof, are forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in the event of grant of a patent or the registration of a utility model or design. All specification supplied herein are subject to change without notice at any time. Copyright © Shanghai SIMCOM Wireless Solutions Ltd. 2010
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 3Version history Data Version Description of change Author 2010-4-26 01.00 Origin 2010-07-19 01.01 Add RESET timing and module is waked up by DTR signal description, modify the description of PCM interface libing 2010-08-26 01.02 Add firmware update description libing
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 4Contents Version history..............................................................................................................3 1 Introduction...............................................................................................................6 1.1 Related documents ..............................................................................................................6 1.2 Terms and abbreviations......................................................................................................7 2 Product concept.......................................................................................................10 3 Application interface...............................................................................................13 3.1 SIM5215A pin description ................................................................................................14 3.2 Operating modes ...............................................................................................................17 3.3 Power supply.....................................................................................................................18 3.3.1 Power supply pins on the board-to-board connector ....................................................................... 19 3.3.2 Minimizing power losses ................................................................................................................ 20 3.3.3 Monitoring power supply ................................................................................................................20 3.4 Power up and power down scenarios ................................................................................20 3.4.1 Turn on SIM5215A ......................................................................................................................... 20 3.4.2 Turn off SIM5215A.........................................................................................................................21 3.5 Power saving.....................................................................................................................22 3.5.1 Minimum functionality mode.......................................................................................................... 22 3.5.2 Flight mode .....................................................................................................................................23 3.5.3 Sleep Mode ..................................................................................................................................... 23 3.5.4 Wake up SIM5215A from Sleep Mode ........................................................................................... 24 3.6 RTC backup.......................................................................................................................24 3.7 Serial interface ..................................................................................................................26 3.8 Audio interfaces ................................................................................................................29 3.8.1 Speaker interface configuration....................................................................................................... 30 3.8.2 Microphone interfaces configuration .............................................................................................. 31 3.8.3 Earphone interface configuration .................................................................................................... 32 3.8.4 Referenced electronic characteristic................................................................................................ 32 3.8.5 Programming characteristic............................................................................................................. 33 3.9 USIM card interface..........................................................................................................36 3.9.1 USIM card application ....................................................................................................................36 3.9.2 Design considerations for USIM card holder .................................................................................. 37 3.10 I2C interface....................................................................................................................38 3.11 USB interface ..................................................................................................................39 3.12 Module Reset ..................................................................................................................40 3.13 General purpose input & output (GPIO) .........................................................................40 3.14 ADC interface .................................................................................................................42 3.15 LDO power output ..........................................................................................................43 3.16 Camera module interface ................................................................................................43 3.17 MMC/SD card interface..................................................................................................46 3.18 PCM Interface .................................................................................................................48
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 53.18.1 Auxiliary PCM (128 kHz PCM clock) .......................................................................................... 50 3.18.2 Primary PCM (2048 kHz PCM clock) .......................................................................................... 51 3.18.3 Transmitting PCM data by USB.................................................................................................... 53 3.19 Firmware update .............................................................................................................53 3.19.1 SD Card update ............................................................................................................................. 53 3.19.2 USB interface update. ...................................................................................................................54 4 Antenna interface....................................................................................................57 4.1 Antenna installation...........................................................................................................57 4.1.1 Antenna connector...........................................................................................................................57 4.2 Module RF output power ..................................................................................................59 4.3 Module RF receiver sensitivity .........................................................................................59 4.4 Module operating frequencies...........................................................................................59 5 Electrical, reliability and radio characteristics....................................................60 5.1 Absolute maximum ratings ...............................................................................................60 5.2 Operating temperatures .....................................................................................................60 5.3 Power supply ratings.........................................................................................................60 5.4 Current consumption.........................................................................................................61 5.5 Electro-Static discharge.....................................................................................................63 6 Mechanics ................................................................................................................65 6.1 Mechanical dimensions of SIM5215A..............................................................................65 6.2 Mounting SIM5215A onto the application platform.........................................................65 6.3 Board-to-board connector .................................................................................................67 6.4 RF connector and adapter cable ........................................................................................68 6.5 View of the SIM5215A .....................................................................................................70 6.6 PIN assignment of board-to-board connector of SIM5215A ............................................70
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 61 Introduction This document describes the hardware interface of the SIMCOM SIM5215A module that connects to the specific application and the air interface. As SIM5215A can be integrated with a wide range of applications, all functional components of SIM5215A are described in great detail. This document can help you quickly understand SIM5215A interface specifications, electrical and mechanical details. With the help of this document and other SIM5215A application notes, user guide, you can use SIM5215A module to design and set-up mobile applications quickly. 1.1 Related documents Table 1: Related documents SN Document name Remark [1] SIMCOM_SIM5215_ATC_EN_V1.03 SIMCOM_SIM5215_ATC_EN_V1.03 [2] ITU-T Draft new recommendationV.25ter: Serial asynchronous automatic dialing and control [3] GSM 07.07: Digital cellular telecommunications (Phase 2+); AT command set for GSM Mobile Equipment (ME) [4] GSM 07.10: Support GSM 07.10 multiplexing protocol [5] GSM 07.05: Digital cellular telecommunications (Phase 2+); Use of Data Terminal Equipment – Data Circuit terminating Equipment (DTE – DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) [6] GSM 11.14: Digital cellular telecommunications system (Phase 2+); Specification of the SIM Application Toolkit for the Subscriber Identity Module – Mobile Equipment (SIM – ME) interface [7] GSM 11.11: Digital cellular telecommunications system (Phase 2+); Specification of the Subscriber Identity Module – Mobile Equipment (SIM – ME) interface [8] GSM 03.38: Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information [9] GSM 11.10 Digital cellular telecommunications system (Phase 2)； Mobile Station (MS) conformance specification； Part 1: Conformance specification [10] 3GPP TS 51.010-1 Digital cellular telecommunications system (Release 5); Mobile Station(MS) conformance specification [11] 3GPP TS 34.124 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [12] 3GPP TS 34.121 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [13] 3GPP TS 34.123-1 Technical Specification Group Radio Access Network; Terminal conformance specification; Radio transmission and reception (FDD) [14] 3GPP TS 34.123-3 User Equipment (UE) conformance specification; Part 3: Abstract Test Suites.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 7[15] EN 301 908-02 V3.2.1 Electromagnetic compatibility and Radio spectrum Matters (ERMStations (BS) and User Equipment (UE) for IMT-2000 Third Genecellular networks; Part 2: Harmonized EN for IMT-2000, CDMA DSpread (UTRA FDD) (UE) covering essential requirements of artiof the R&TTE Directive [16] EN 301 489-24 V1.4.1 Electromagnetic compatibility and Radio Spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 24: Specific conditions for IMT-2000 CDMA Direct Spread (UTRA) for Mobile and portable (UE) radio and ancillary equipment [17] IEC/EN60950-1(2006) Safety of information technology equipment (2000) [18] 3GPP TS 51.010-1 Digital cellular telecommunications system (Release 5); Mobile Station (MS) conformance specification [19] GCF-CC V3.23.1 Global Certification Forum - Certification Criteria [20] 2002/95/EC Directive of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment(RoHS) [21] SIM52xx_Audio_Application_Note_V1.01 SIM52xx_Audio_Application_Note_V1.01 [22] SIM52xx_PCM_Application_Note_V1.02 SIM52xx_PCM_Application_Note_V1.02 [23] SIM52xx_Waking_up_Application_Note_V1.03 SIM52xx_Waking_up_Application_Note_V1.03 1.2 Terms and abbreviations Table 2: Terms and abbreviations Abbreviation Description ADC Analog-to-Digital Converter ARP Antenna Reference Point BER Bit Error Rate BTS Base Transceiver Station CS Coding Scheme CSD Circuit Switched Data CTS Clear to Send DAC Digital-to-Analog Converter DRX Discontinuous Reception DSP Digital Signal Processor DTE Data Terminal Equipment (typically computer, terminal, printer) DTR Data Terminal Ready DTX Discontinuous Transmission EFR Enhanced Full Rate EGSM Enhanced GSM EMC Electromagnetic Compatibility ESD Electrostatic Discharge ETS European Telecommunication Standard
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 8FCC Federal Communications Commission (U.S.) FDMA Frequency Division Multiple Access FR Full Rate GMSK Gaussian Minimum Shift Keying GPRS General Packet Radio Service GSM Global Standard for Mobile Communications HR Half Rate I2C Inter-Integrated Circuit IMEI International Mobile Equipment Identity Inorm Normal Current Imax Maximum Load Current kbps Kilo bits per second Li-Ion Lithium-Ion MO Mobile Originated MS Mobile Station (GSM engine), also referred to as TE MT Mobile Terminated PAP Password Authentication Protocol PBCCH Packet Switched Broadcast Control Channel PCB Printed Circuit Board PCS Personal Communication System, also referred to as GSM 1900 RF Radio Frequency RMS Root Mean Square (value) RTC Real Time Clock Rx Receive Direction SIM Subscriber Identification Module SMS Short Message Service SPI serial peripheral interface TDMA Time Division Multiple Access TE Terminal Equipment, also referred to as DTE TX Transmit Direction UART Universal Asynchronous Receiver & Transmitter VSWR Voltage Standing Wave Ratio Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum Input Voltage Value VImin Absolute Minimum Input Voltage Value
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 9VOHmax Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value FD SIM fix dialing phonebook SM SIM phonebook NC Not connect EDGE Enhanced data rates for GSM evolution HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access ZIF Zero intermediate frequency WCDMA Wideband Code Division Multiple Access VCTCXO Voltage control temperature-compensated crystal oscillator USIM Universal subscriber identity module UMTS Universal mobile telecommunications system UART Universal asynchronous receiver transmitter A-GPS Assisted Global positioning system GPS Global positioning system S-GPS Simultaneous Global positioning system
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 102 Product concept Designed for global market, SIM5215A is a quad-band GSM/GPRS/EDGE and dual-band UMTS engine that works on frequencies of GSM 850MHz, EGSM 900 MHz, DCS 1800 MHz, PCS 1900MHz, and WCDMA 1900M/850M. SIM5215A provides GPRS multi-slot class 12/class10/class 8 (optional) capability and EDGE, supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. EDGE: 8 PSK, DTM (class A) multi-slot class 12, DL coding schemes: MCS1-9, UL coding schemes: MCS1-9. With a tiny configuration of 36mm × 26mm × 4.5 mm, SIM5215A can fit almost all the space requirements in your applications, such as AMR, POS, Security & Surveillance and other mobile devices. The physical interface to the mobile application is made through a 70 pins board-to-board connector, which provides all hardware interfaces between the module and customers’ boards except the RF antenna interface. z Serial port and USB 2.0 port can be alternatively used as data port. z USIM interface: support SIM cards: 3V & 1.8V z Power on/off and reset signal z Backup RTC interface. z Six GPIOs: 1 for interrupt, 1 for flight mode, 1 for status LED, 2 for output control, 1 for input, also can be multiplex as a PCM interface. z Three audio channels include two microphones inputs and three audio outputs. This can be easily configured by AT command. z A camera interface is provided,(if above pins are not used as camera interface ,it could be configured as GPIOs.. z An I2C interface is provided. z An ADC interface z A LDO power output z A 4 bit SD card interface z A PCM interface, all pins of PCM interface can be configured as GPIOs(default are GPIOs). The SIM5215A provides RF antenna interface with two alternatives: antenna connector and antenna pad. The antenna connector is MURATA MM9329-2700. And customer’s antenna can be soldered to the antenna pad. The SIM5215A is integrated with the TCP/IP protocol，Extended TCP/IP AT commands are developed for customers to use the TCP/IP protocol easily, which is very useful for those data transfer applications. FTP/HTTP/ SMTP/POP3/ MMS/ LUA Script is integrated in SIM5215A too. Note: The SIM5215A has two kinds of interface (UART and USB) to connect to host CPU.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 11USB interface is mapped to five virtual ports: “SIMTECH USB Modem”, “SIMTECH NMEA Device”, “SIMTECH ATCOM Device”, “SIMTECH Diagnostics interface” and “SIMTECH Wireless Ethernet Adapter”. UART, “SIMTECH USB Modem” and “SIMTECH ATCOM Device” could respond to AT command, and URC report to these three ports at the same time, but user could set dedicated port to receive URC (Unsolicited Result Code). SIM5215A key features at a glance: Table 3: SIM5215A key features Feature Implementation Power supply Single supply voltage 3.4V – 4.2V Power saving Please refer to Table 39 Frequency bands z GSM: 850M/ 900M/ DCS 1800M /PCS 1900M z WCDMA: 1900M/850M z The SIM5215A can worked in GSM and WCDMA mode z The frequency bands also can be set by AT + CNMP. Transmit power ●Class 4 (+33dBm ±2dB) for GSM850 ●Class 4 (+33dBm ±2dB) for EGSM900 ●Class 1 (+30dBm ±2dB) for GSM1800 ●Class 1 (+30dBm ±2dB) for GSM1900 ●Class E2 (+27dBm ± 3dB) for GSM 850 8-PSK ●Class E2 (+27dBm ± 3dB) for GSM 900 8-PSK ●Class E2 (+26dBm +3 /-4dB) for GSM 1800 8-PSK ●Class E2 (+26dBm +3 /-4dB) for GSM 1900 8-PSK ●Class 3 (+24dBm +1.7/-3.7dB) for WCDMA 1900, WCDMA FDD BDII ●Class 3 (+24dBm +1.7/-3.7dB) for WCDMA 850, WCDMA FDD BDV GPRS/EDGE connectivity z GPRS/EDGE multi-slot is up to class 12 z GPRS mobile station class B Temperature range z Operating Temperature: -30°C to +80°C z Storage temperature -40°C to +85°C DATA GPRS: z GPRS data downlink transfer: max. 85.6 kbps z GPRS data uplink transfer: max. 42.8 kbps z Coding scheme: CS-1, CS-2, CS-3 and CS-4 z SIM5215A supports the protocols PAP (Password Authentication Protocol) usually used for PPP connections. z The SIM5215A integrates the TCP/IP protocol. z Support Packet Switched Broadcast Control Channel (PBCCH) z CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps, non-transparent z Unstructured Supplementary Services Data (USSD) support DATA EDGE z EDGE E2 power class for 8 PSK z DTM (simple class A), multi-slot class 12 z Downlink coding schemes – MCS 1-9 z Uplink coding schemes – MCS 1-9
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 12z BEP reporting and test mode B z 8-bit, 11-bit RACH z PBCCH support z phase/2 phase access procedures DATA UMTS z R99 z SMS z MT, MO, CB, Text and PDU mode z SMS storage: SIM card z Support transmission of SMS alternatively over CSD or GPRS. User can choose preferred mode. SIM interface Support SIM card: 1.8V ,3V External antenna Connected via 50 Ohm antenna connector or antenna pad Audio features Speech codec modes: z Half Rate (ETS 06.20) z Full Rate (ETS 06.10) z Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80) z AMR(WCDMA) z AMR+QCP(GSM) z A5/1, A5/2, and A5/3 ciphering Serial interface z Serial Port standard or null modem mode on Serial Port Interface z Serial Port can be used to control module by sending AT command. Phonebook management Support phonebook types: SM, FD, LD, RC, ON, MC. SIM Application Toolkit Support SAT class 3, GSM 11.14 Release 98 Support USAT Real time clock Implemented Timer function Programmable via at command Physical characteristics Size: 36 mm ×26mm ×4.5 mm Weight: 7g Firmware upgrade Firmware upgrade over USB interface PCM Multiplex on GPIOs. 3 formats: 8 bit (υ-law or A-law) and 16 bit (linear). Table 4：Coding schemes and maximum net data rates over air interface Coding scheme 1 Timeslot 2 Timeslot 4 Timeslot CS-1: 9.05kbps 18.1kbps 36.2kbps CS-2: 13.4kbps 26.8kbps 53.6kbps CS-3: 15.6kbps 31.2kbps 62.4kbps CS-4: 21.4kbps 42.8kbps 85.6kbps MCS-1 8.80kbps 17.60kbps 35.20kbps MCS-2 11.2kbps 22.4kbps 44.8kbps MCS-3- 14.8kbps 29.6kbps 59.2kbps MCS-4 17.6kbps 35.2kbps 70.4kbps MCS-5 22.4kbps 44.8kbps 89.6kbps
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 13MCS-6 29.6kbps 59.2kbps 118.4kbps MCS-7 44.8kbps 89.6kbps 179.2kbps MCS-8 54.4kbps 108.8kbps 217.6kbps MCS-9 59.2kbps 118.4kbps 236.8kbps 3 Application interface All hardware interfaces except RF interface that connects SIM5215A to the customers’ cellular application platform is through a 70-pin 0.4mm pitch board-to-board connector. Figure 1 is SIM5215A system overview. Figure 2 is SIM5215A block diagram. Sub-interfaces included in this board-to-board connector are described in detail in following chapters: z Power supply z USB interface z Serial interface z Analog audio interfaces z SIM interface z GPIO z ADC z LDO Power output z PCM interface z MMC/SD interface z Camera interface z RTC z I2C interface Electrical and mechanical characteristics of the board-to-board connector are specified in Chapter 6. There we also order information for mating connectors.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 14 Figure 2：SIM5215A block diagram 3.1 SIM5215A pin description Table 5：Board-to-Board Connector pin description Power Supply PIN NAME I/O DESCRIPTION DC CHARACTERISTICSVBAT Six BAT pins of the board-to-board connector are dedicated to connect the supply voltage. The power supply of SIM5215A has to be a single voltage source of VBAT= 3.3V...4.2V. It must be able to provide sufficient current in a transmit burst which typically rises to 2A. Mostly, these six pins are voltage input Vmax= 4.2V Vmin=3.4V Vnorm=3.8V VRTC Current input for RTC when the battery is not supplied for the system.Current output for backup battery when the main battery is present and the backup battery is in low voltage state. If not in use, left it open. Vmax=3.2V Vnorm=3.0V Vmin=1.5V Inorm= 1.1uA GND Digital ground Power on or power off PIN NAME I/O DESCRIPTION DC CHARACTERISTICSPOWER_ON I Voltage input for power on key. POWER_ON get a low level voltage for user to power on or power off the system. It has been pulled up to VILmax=0.2*VBAT VIHmin=0.6*VBAT VImax=VBAT
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 15VBAT in module. The user should keep it to low level for at least 64mS when power on or power off the system because the system needs margin time to assert the software. Audio interfaces PIN NAME I/O DESCRIPTION DC CHARACTERISTICSMIC_P MIC_N I Positive and negative voice-band input If not in use, connect to ground through a 100N capacitor. Audio DC Characteristics refer to chapter 3.8.4 HP_MICP I Auxiliary positive voice-band input, if not in use, connect to ground through a 100N capacitor. EAR_P EAR_N O Positive and negative voice-band output, if not in use ,left open HPR HPL O Auxiliary right channel and left channel voice-band output, if not in use, left open. SPK_P SPK_N O Loud Speaker Output, if not in use ,left open HKADC I Analog Digital Converter Input VREG_AUX O LDO power output This LDO default output voltage is 2.85V, and driver current is rated for 250mA. USB PIN NAME I/O DESCRIPTION DC CHARACTERISTICSUSB_VBUS I USB power supply input, if not in use, left open. Vmax =5.25 V Vmin =4.4 V Vnorm = 5.0 V USB_DP I/O Plus (+) line of the differential, bi-directional USB signal to/from the peripheral device. If not in use, left open. USB_DM I/O Minus (-) line of the differential, bi-directional USB signal to/from the peripheral device. If not in use, left open. They are compliant with the USB 2.0 specification. Serial interface PIN NAME I/O DESCRIPTION DC CHARACTERISTICSUART_DTR I Data Terminal Ready, if not in use, left open. UART_RXD I Receive Data, which has been pulled down with a 15kR resistor to ground in module, if not in use, left open. So please don’t pull up or pull down in your application circuit.VILmin=0V VILmax=0.3*VDD_EXT*VIHmin=0.7*VDD_EXT VIHmax=VDD_EXT+0.3 VOLmin=GND VOLmax=0.2V
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 16UART_TXD O Transmit Data, if not in use, left open.UART_RTS O Request to Send, if not in use, left open. UART_CTS I Clear to Send, if not in use, left open.UART_RI O Ring Indicator, if not in use, left open. UART_DCD O Data Carrier detection, if not in use, left open. Camera interface PIN NAME I/O DESCRIPTION DC CHARACTERISTICSCAM_D2 I Bit 2 of RGB or YUV D0 video component input CAM_D3 I Bit 3 of RGB or YUV D1 video component input CAM_D4 I Bit 4 of RGB or YUV D2 video component input CAM_D5 I Bit 5 of RGB or YUV D3 video component input CAM_D6 I Bit 6 of RGB or YUV D4 video component input CAM_D7 I Bit 7 of RGB or YUV D5 video component input CAM_D8 I Bit 8 of RGB or YUV D6 video component input CAM_D9 I Bit 9 of RGB or YUV D7 video component input CAM_HSYNC I Video horizontal line synchronization signal input CAM_VSYNC I Vertical sync input CAM_CLK O master clock output CAM_PCLK I Pixel clock input CAM_RESET O Master reset out, active low CAM_STANDBY O Power-down mode selection “0”=Normal mode, “1”=Power-down mode VILmin=0V VILmax=0.3*VDD_EXT*VIHmin=0.7*VDD_EXT VIHmax=VDD_EXT+0.3 VOLmin=GND VOLmax=0.2V VOHmin=VDD_EXT-0.2 VOHmax=VDD_EXT All camera pins can be configured as GPIOs. Detail description refer to chapter 3.16. USIM interface PIN NAME I/O DESCRIPTION DC CHARACTERISTICSV_USIM O Voltage Supply for SIM card The voltage can be selected by software to be either 1.8V or 3V USIM_DATA I/O SIM Data Output/Input, which has been pulled up with a 22kR resistor to V_USIM in module. So please do not pull up or pull down in your application circuit. USIM_CLK O SIM Clock VILmin=0V VILmax=0.3*V_USIM VIHmin=0.7* V_USIM VIHmax=V_USIM +0.3 VOLmin=GND VOLmax=0.2V
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 17USIM_RESET O SIM Reset IIC interface PIN NAME I/O DESCRIPTION DC CHARACTERISTICSIIC_SDA I/O I2C data, if not in use, left open. It has been pulled up with a 2.2kR resistor to 2.6V in module. So there is no need to pull up it in your application circuit. IIC_SCL O I2C clock output, if not in use, left open. It has been pulled up with a 2.2kR resistor to 2.6V in module. So there is no need to pull up it in your application circuit. Other interface PIN NAME I/O DESCRIPTION DC CHARACTERISTICSReset I System reset in, active low. Reset pin has been pulled up in SIM5215A. Detail description refer to chapter 3.12. GPIO0/PCM_DIN I General Input PIN with interrupt. If not in use, left open. It also can be multiplexed as the PCM_DIN pin. GPIO1 O Status Indicating LED Control. GPIO2/PCM_SYNC I General Input PIN. If not in use, left open. It also can be multiplexed as the PCM_SYNC pin. GPIO3/PCM_CLK O General Output PIN. If not in use, left open. It also can be multiplexed as the PCM_CLK pin. GPIO4 I RF Control: Flight Modem switch GPIO5/PCM_DOUT O General Output PIN. If not in use, left open. It also can be multiplexed as the PCM_DOUTpin.VIHmin=0.7*VDD_EXT*VIHmax= VDD_EXT+0.3VOLmin=GND VOLmax=0.2V VOHmin= VDD_EXT-0.2VOHmax= VDD_EXT *Note: module internal reference supply power: VDD_Ext=2.6V 3.2 Operating modes The following table summarizes the various operating modes, each operating modes will be referred to in the following chapters. Table 6：Overview of operating modes Mode Function Normal operation Module Power Off mode Module will go to Power off mode when the Power on pin has been pushed low for 2 Seconds.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 18Module sleep Module will automatically go into sleep mode when there is no interrupt input or other operation. In this case, the current consumption of module will be reduced to the minimal level. GSM IDLE Software is active. Module has registered to the GSM network, and the module is ready to send and receive. GSM mode GSM TALK CSD connection is going on between two subscribers. In this case, the power consumption depends on network settings such as DTX off/on, FR/EFR/HR, hopping sequences, antenna. GPRS IDLE Module is ready for GPRS data transfer, but no data is currently sent or received. In this case, power consumption depends on network settings and GPRS configuration (e.g. multi-slot settings). GPRS mode GPRS DATA There is GPRS data in transfer (PPP or TCP or UDP). In this case, power consumption is related with network settings (e.g. power control level), uplink/downlink data rates and GPRS configuration (e.g. used multi-slot settings). EDGE mode EDGE IDLE Module is ready for data transfer in EDGE mode, but no data is currently sent or received. In this case, power consumption depends on network settings and EDGE configuration EDGE mode EDGE DATA There is data in transfer (PPP or TCP or UDP) in EDGE mode. In this case, power consumption is related with network settings (e.g. power control level), uplink/downlink data rates and EDGE configuration. WCDMA IDLE Module has registered to the WCDMA network, and the module is ready to send and receive. WCDMA mode WCDMA talk Module is active in WCDMA mode. The power consumption depends on network settings. POWER DOWN Normal shutdown is by sending the “AT+CPOF” command or using the POWER_ON pin. The power management ASIC disconnects the power supply from the base band part of the module, only the power supply for the RTC is remained. Software is not active. The serial interfaces are not accessible. Operating voltage (connected to VBAT) remains applied. Minimum functionality mode (flight mode) Use of the “AT+CFUN” command can set the module to a minimum functionality mode without remove the power supply. In this case, disable phone both transmit and receive RF circuits, that is to say ,flight mode 3.3 Power supply The power supply of SIM5215A is from a single voltage source of VBAT= 3.3V...4.2V. In some cases, the ripple in a transmit burst may cause voltage drops when current consumption rise typically to peak of 2A. So the power supply must be able to provide sufficient current up to 2A. For the VBAT input, a local bypass capacitor is recommended. A capacitor (about 100µF, low
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 19ESR) is recommended when one uses a Li battery. When you use a DC supply the Capacitor must be a larger one (for example 2200u/10V), Multi-layer ceramic chip (MLCC) capacitors can provide the best combination of low ESR and small size but may not be cost effective. A lower cost choice may be a 100 µF tantalum capacitor (low ESR) with a small (0.1 µF to 1µF) ceramic in parallel, which is illustrated as following figure. And the capacitors should put as closer as possible to the SIM5215A VBAT pins. The following figure is the recommended circuit. Figure 3：VBAT input The following figure is the VBAT voltage ripple wave at the maximum power transmit phase, the test condition is VBAT=4.0V, VBAT maximum output current =2A, CA=100 µF tantalum capacitor (ESR=0.7Ω) and CB=1µF. Figure 4：VBAT voltage drop at the maximum power transmit phase (GSM) And make sure that the capacitor is close to VBAT pins of 70 pins connector. If a DC/DC or LDO is used for power supply of the module, you should make sure that the peak current of power supply can rise up to 2A (4.0V). The reference design is putting one big capacitor at the output of the DC/DC or LDO, and another big capacitor beside the 70 pins connector. Note: If a DC/DC or LDO is used as power supply, besides a big capacitor close to the 70-pin connector, another big capacitor (typically a 100 µF tantalum capacitor) is suggested to be put at the output pin of the DC/DC or LDO. 3.3.1 Power supply pins on the board-to-board connector Six VBAT pins of the board-to-board connector are dedicated to connect the supply voltage; six GND pins are recommended for grounding. VRTC pin can be used to back up the RTC.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 20 3.3.2 Minimizing power losses Please pay special attention to the supply power when you are designing your applications. Please make sure that the input voltage will never drop below 3.3V even in a transmit burst during which the current consumption may rise up to 2A. If the power voltage drops below 3.3V, the module may be switched off. Using the board-to-board connector will be the best way to reduce the voltage drops. You should also remove the resistance from the power supply lines on the host board or from battery pack. 3.3.3 Monitoring power supply To monitor the supply voltage, you can use the AT command(AT+CBC) which include two parameters: voltage supply status and voltage value (in mV). It returns the battery voltage of 1-100 percent of capacity and actual value measured at VBAT and GND. The voltage is continuously measured at intervals depending on the operating mode. The displayed voltage (in mV) is averaged over the last measuring period before the AT command was executed. 3.4 Power up and power down scenarios 3.4.1 Turn on SIM5215A SIM5215A can be turned on by various ways, which are described in the following chapters: z Via POWER_ON pin: starts normal operating mode; POWER_ON has been pulled up to VBAT in module. You can turn on the SIM5215A by driving the POWER_ON to a low level voltage for period time. The power on scenarios illustrate as following figure. Figure 5: Timing of turn on system
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 21Note1: Ton >= 64ms. Note2: Commonly, the AT command can be set 2-3S after the SIM5215A is powered on. If VBAT was supplied to SIM5215A, SIM5215A could be automatically powered on by connecting the Power ON pin to Low level directly. In automatically powering on mode, it is suggested that the SIM5215A should reset by RESET pin after power on. Below is the reference circuit. Figure 6: Automatic power on Note: The POWER_ON has been pulled up with a 250kR resistor to VBAT in module. Make sure that VILmax=0.2*VBAT, and the value of R1 above can be changed as you want. In automatically powering on mode, it is suggested that the SIM5215A should reset by RESET pin after power on. 3.4.2 Turn off SIM5215A Following procedure can be used to turn off the SIM5215A: z Normal power down procedure: Turn off SIM5215A using the POWER_ON pin z Normal power down procedure: Turn off SIM5215A using AT command 3.4.2.1 Turn off SIM5215A using the POWER_ON pin (Power down) You can turn off the SIM5215A by driving the POWER_ON to a low level voltage for period time. The low level period of the POWER_ON is about 64mS. This procedure will let the module to be logged off from the network and allow the software to enter into a secure state and save data before completely disconnecting the power supply. 3.4.2.2 Turn off SIM5215A using AT command You can use AT command “AT+CPOF” to turn off the module. This command will let the module to be logged off from the network and allow the software to enter into a secure state and save data before completely disconnecting the power supply. After this moment, the AT commands can not be executed. The module enters the POWER DOWN mode, only the RTC is still active. Please refer to AT command manual for details of the AT command “AT+ C PO F”.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 223.4.2.3 Under-voltage automatic warning Software will constantly monitor the voltage applied on the VBAT, if the measured battery voltage is no more than 3.4V, the following URC will be presented: warning! voltage is low : 3.3v Note: Under-voltage automatic warning function default is disabled. One can enable it by AT+CVALARM. 3.4.2.4 Under-voltage automatic shutdown Besides the Under-voltage automatic warning, system will monitor the working voltage and power off the module if the voltage is lower to a specified value which can be set by AT+CPMVT in order to protect the module. Note: this feature default is disabled, One can use AT+CPMVT to active it. At this moment, no more AT commands can be executed. The module will be logged off from the network and enters POWER DOWN mode, only the RTC is still active (if backup battery is connected to VRTC pin). 3.5 Power saving There are two methods to achieve SIM5215A module extreme low power. “AT+CFUN” is used to set module into minimum functionality mode and GPIO4 hardware interface signal can be used to set system to be Flight mode (Close RF). 3.5.1 Minimum functionality mode Minimum functionality mode reduces the functionality of the module to a minimum and, thus, minimizes the current consumption to the lowest level. This mode is set with the “AT+CFUN” command which provides the choice of the functionality levels <fun>=0，1，4 z 0: minimum functionality, (same as CFUN=4,disable both transmit and receive RF circuits of the phone); z 1: full functionality (Default); z 4: disable both transmit and receive RF circuits of the phone; If SIM5215A has been set to minimum functionality by “AT+CFUN”, then the RF function function will be closed, in this case, the serial port is still accessible, but all AT commands referred to RF function or SIM card function will not be accessible. When SIM5215A is in minimum functionality or has disabled all RF functionality by “AT+CFUN”, it can return to full functionality by “AT+CFUN”, not need to reset module. NOTE: In fact, Flight mode is identical with minimum functionality mode .Different titles lie
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 23on different viewpoint. Flight mode is titled from visual application; however, minimum functionality is derived from normal 3GPP at-command spec. 3.5.2 Flight mode Through GPIO4 signal control SIM5215A module to enter or exit the Flight mode in customer applications. In Flight mode, SIM5215A closes RF function. If GPIO4 is left open, SIM5215A enters normal mode. But it is suggested that GPIO4 should not be left open. Because GPIO4 is sensitive to ESD, so bidirectional ESD protection component is suggested to add on GPIO4. Figure 7: Flight mode switch Table 7：logic of flight mode switch 3.5.3 Sleep Mode If periphery equipment stops working, and there is no on air or audio activity required and no hardware interrupt (such as GPIO interrupt or data on serial port), SIM5215A will enter SLEEP mode automatically. In this mode, SIM5215A can still receive paging or SMS from network. If USB interface of SIM5215A is connecting with host CPU,and host CPU support USB suspend mode, SIM5215A could enter sleep mode. Otherwise SIM5215A could not enter sleep mode. GPIO4 Status Module Action Low Level Flight Mode: RF is closed. High Level Normal Mode: RF is working.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 243.5.4 Wake up SIM5215A from Sleep Mode When SIM5215A is in SLEEP mode, the following method can wake up the module. z USB interface active z Receive a voice or data call from network to wake up SIM5215A. z Receive a SMS from network to wake up SIM5215A. z Receive a interrupt signal from GPIO0 z GPIO4 state change. z Receive AT command from UART. z UART DTR signal changed. Normally DTR pin will stay high but in certain condition when serial port is used in Null Modem(3-line mode). When host wants to wake up SIM5215A, it can pull down DTR for about 12ms(since SIM5215A has a debounce time of 10ms for mistaken interrupt checking). Then DTR will trigger an interrupt which will finally cause SIM5215A to be waken up from sleep mode. Note: One can enable/disable such function by AT+CDTRISRS, also One can configure the DTR’s trigger condition by AT+CDTRISRMD(only level trigger condition has debounce time). Currently the function is enabled by default and the trigger condition is low level. Please reference document [23] for detailed information of Waking_up_Application_Note. WARNING!!!: when DTR has been pulled down/up long enough to trigger the interrupt one must recover DTR to original status or the interrupt will be triggered all the time and SIM5215A may crash. 3.6 RTC backup The RTC (Real Time Clock) power supply of module can be provided by an external battery or a battery (rechargeable or non-chargeable) through the VRTC (PIN11) on the board-to-board connector. You need only a coin-cell battery or a super-cap to VRTC to backup power supply for RTC. The discharge current is smaller than 10uA. The module could update local time based on universal time and time zone from network. (This feature must be supported by the network). If this feature is used, please refer to AT command AT+CTZU and AT +CTZR. Note: The VRTC default state can be designed to a NC pin in your circuit. If you need to use the VRTC, You may connect the VRTC pin to a battery or a capacitor. The following figures show various sample circuits for RTC backup.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 25 Figure 8: RTC supply from non-chargeable battery Figure 9: RTC supply from rechargeable battery Figure 10: RTC supply from capacitor z Li-battery backup Rechargeable Lithium coin cells are also small in size, but have higher capacity than the double layer capacitors resulting in longer backup times. The coin cell normal voltage should be 3.0V.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 26 Typical charge curves for each cell type are shown in following figures. Note that the rechargeable Lithium type coin cells are generally pre-charged from the vendor. Figure 11: Seiko MS518 Charge and discharge Characteristic Note: Gold-capacitance backup Some suitable coin cells are the electric double layer capacitors. They have a small physical size (6.8 mm diameter) and a nominal capacity of 0.2 F to 0.3 F, giving hours of backup time. 3.7 Serial interface SIM5215A provides an unbalanced asynchronous serial port. The module is designed as a DCE (Data Communication Equipment), following the traditional DCE-DTE (Data Terminal Equipment) connection, the module and the client (DTE) are connected through the following signal (as following figure shows).
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 27 Figure 12: Interface of serial ports Serial port z Port/TXD @ Client sends data to the RXD signal line of module z Port/RXD @ Client receives data from the TXD signal line of module All pins of all serial ports have 8mA driver, the logic levels are described in the following table Table 8: Logic levels of serial ports pins Parameter Min Max Unit Logic low input 0 0.3*VDD_EXT V Logic high input 0.7 *VDD_EXT VDD_EXT +0.3 V Logic low output GND 0.2 V Logic high output VDD_EXT -0.2 VDD_EXT V Note: VDD_EXT=2.6V, is module internal IO reference voltage. SIM5215A provides an AT command (AT+CSUART) to support Null modem. Null modem mode uses two lines (RXD, TXD (GND not comprised)) to setup communication between devices. The lines connection is shown as below.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 28 Figure 13: Null modem mode of serial ports If serial port is used in Null Modem, the pin “RI” can be used as an interrupt pin. Normally it will stay high but in certain condition such as SMS receiving, incoming voice (CSD, video) call or URC reported, the pin “RI” will be set low to inform the master, and it will stay low until the master clear this interrupt with AT command (AT+CRIRS). If using seven lines to setup communication between devices, the pin “RI” is different. First it stays high, when a voice (CSD) call coming, the pin “RI” is set to low for about 5900ms, then it is set high again about 100ms. The situation will repeat until that the call is answered or hung up. After the call is answered or hung up, the pin “RI” is set high. Functions of serial port supporting on SIM5215A are as following: z Standard/Null Modem mode on Serial Port Interface. z Contains Data lines TXD and RXD, State line RTS and CTS z Serial Port can be used for CSD, PS service and send AT command for controlling module. z Serial Port is a high-speed port. It supports the communication rate as following: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 3200000, 3686400, 4000000 Default band rate is 115200bps. And Data bits=8, Parity=None, Stop bits=1, Flow control=None. NOTE: 1 If you need to use a speed higher than 115200, you should consider the length of RS232 line and the speed support on your RS232 port. 2 Though the connector has seven lines for serial port, but the line: DCD, DTR are not implemented and reserved for future use. 3 The line RI behaves the same as the standard when using four-line mode, but in two-line mode its action is not standard which is depicted above.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 29 Default setting in HyperTerminal software is as the following figure. Figure 14: Settings of serial ports 3.8 Audio interfaces The module provides three analogy audio output channels and two analogy audio input channels. MIC_P/N and HP_MICP, are used for microphone (two analogy audio input channels), EAR_P/N, HPR/HPR and SPK_P/N are used for audio output (three analogy audio output channels). There are some AT Commands to control audio channel switch and other parameters, please refer to ATC manual. Note: Please reference document [21] for detailed information of Audio Application Note. Table 9: Audio interface signal
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 30It is suggested that you adopt one of two following reference circuits in order to get well speaker effect. The different audio signals have to be routed according to different signal layout rules as in following figures: 3.8.1 Speaker interface configuration Figure 15: Speaker interface configuration Because SPK_P and SPK_N are outputs of Class-D audio amplifier, optional EMI filtering is shown at Figure 15; these components (two ferrite beads and two capacitors) can be added to reduce electromagnetic interference. If used, they should be located near the SPK_P and SPK_N. Considerable current flows between the audio output pins and the speaker, so wide PCB traces are recommended (~ 20 mils). Audio channel Pin name Pin No Function MIC_P 43 MIC anode input MIC_N 44 MIC cathode input EAR_P 25 Receiver output anode NORMAL ( default ) EAR_N 26 Receiver output cathode HP_MICP 42 Headset MIC anode input HPR 27 Headset right speaker HEADSET HPL 28 Headset left speaker MIC_P 43 MIC anode input MIC_N 44 MIC cathode input SPK_P 23 Loudspeaker anode Hand free SPK_N 24 Loudspeaker cathode
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 31 Figure 16: Receiver interface configuration 3.8.2 Microphone interfaces configuration Figure 17: Microphone interface configuration NOTE : SIM5215A has integrated internal MIC bais circuit. There is no need to pull the MIC1_P and MIC_M up to the external power, because they have been pulled up in the Module. MIC_P and MIC_N should be layout differential.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 323.8.3 Earphone interface configuration Figure 18: Earphone interface configuration 3.8.4 Referenced electronic characteristic Table 10: MIC Input Characteristics Parameter Min Typ Max Unit Working Voltage 1.2 1.60 2.2 V Working Current 70 400 uA External Microphone Load Resistance 1.2 2.2 k Ohms Table 11: Audio Output Characteristics Parameter Min Typ Max Unit load Resistance 27 32 Ohm Normal Output(EAR_P,EAR_N) Differential Output power 70 mW Single Ended load Resistance 12 16 Ohm Differential load Resistance 27 32 Ohm Auxiliary Output(HPR,HPL) Single Ended Output power 21.6 mW
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 33Table 12: Speaker Output Characteristics Parameter Min Typ Max Unit Quiescent Current 6.2 mA Output power(1KHz) 500 mW 3.8.5 Programming characteristic 3.8.5.1 Setting Audio Parameters by AT Commands The audio modes 1 to 3 can be temporarily adjusted according to the AT command parameters listed in the table below. The audio parameters are set with the AT commands AT+CMICAMP1, AT+SIDET, AT+CTXGAIN, AT+CRXGAIN, AT+CTXVOL, AT+CTXFTR, AT+CRXFTR as we l l a s AT + CLVL ,AT +C VLVL , AT+ VM UT E , AT +M I CM UT, AT+ CS DV C, a nd AT +C PTON E. For a model of how the parameters influence the audio signal path see Section 3.8.5.2. Table 13: Audio parameters adjustable by AT command Parameter Influence to Range Gain range Calculation AT command micAmp1 MICP/MICN analogue amplifier gain before ADC0…1 0…24dB 2 steps AT+CMICAMP1txVol Digital gain of input signal after ADC 0, 1...65535 Mute, -84...+12dB 20 * log (txVol/ 16384) AT+CTXVOL txGain Digital gain of input signal after summation of sidetone 0, 1...65535 Mute, -84...+12dB 20 * log (txGain/ 16384) AT+CTXGAIN txFilter Input PCM 13-tap filter parameters, 7 values 0...65535 --- MATLAB calculate AT+CTXFTR rxGain Digital gain of output signal after summation of sidetone 0, 1...65535 Mute, -84...+12dB 20 * log (rxGain/ 16384) AT+CRXGAIN rxVol Digital Volume of output signal after speech decoder, before summation of sidetone and DAC -300…300 dbm -300…300dbm AT+CLVL AT+CVLVL AT+CRXVOL stGain Digital attenuation of sidetone 0, 1...65535 Mute, -96...0dB 20 * log (stGain/ 16384) -12 AT+SIDET rxFilter Output PCM 13-tap filter 0...65535 --- MATLAB AT+CRXFTR
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 34parameters, 7 values calculate NOTE: if you want to better experience on audio, you should modify these parameters for your own electronic and mechanical design of audio part. The 13-tap filter parameter could be debugged and calculated by MATLAB. 3.8.5.2 Audio Programming Model The audio programming model shows how the signal path can be influenced by varying AT command parameters. Parameters <micAmp>, <txGain> , <txVol>, <txFilter>,<rxGain>, <stGain> ,<rxVol> and <rxFilter> can be adjusted with corresponding AT commands. For more information on the AT commands and parameters see Section 3.8.5.1. NOTE: Please reference document [1] for detailed information of each AT command. Figure 19: Audio programming model Note: There is no AT+CMIC in SIM5215A, because there is only one analogue hardware amplifier which is supported by AT+CMICAMP1. 3.8.5.3 Audio characteristics The electrical characteristics of the voice band part depend on the current audio mode (device number) set with the AT+CSDVC command. All values are noted for default gains. Table 14: Audio Characteristics Audio Device no. AT+CSDVC= 1 2 3 Name Handset Headset Speaker phone
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 35Purpose Default for DSB with Votronic handset Mono Headset handheld speaker-phoneTX-Filters Adjustable Adjustable Adjustable RX-Filters Adjustable adjusted to fit artificial ear type 3.2 low leakageAdjustable Adjustable 500 Hz HP Gain setting: Adjustable Adjustable Adjustable micAmp1 0（0 dB） 0（0 dB） 0（0 dB） txGain 23143 51811 32690 txVol 16384 16384 16384 Default MIC path Parameters txFilter [tap0~6] 0xff33, 0x05d8, 0xf488, 0x0af3, 0x24bb, 0xca42, 0x7c95 0,0,0, 0,0,0,0 0xfff3, 0x001d, 0xffb9, 0x016b, 0xfa71, 0x0c08, 0x309a rxGain 11599 6523 41155 rxVol -100 -100 0 stGain 2304 1024 0 Default Output path Parameters rxFilter [tap0~6] 0xff00, 0xfac9, 0x0571, 0xf365, 0x0bc2, 0xf2bb, 0x533a 0,0,0, 0,0,0,0 0xfd3f, 0xfc4f, 0xfb60, 0xfa27, 0xf97c, 0xf920, 0x3934 Power supply VMIC ON during call ON during call ON during call Sidetone Adjustable Adjustable Adjustable Volume control Adjustable Adjustable Adjustable Echo canceller Filter length Behaviour optimized for ON 16ms low echo ON 16ms moderate echo ON 64ms high echo Non Linear Processor with Comfort Noise Generator ON ON ON Noise Reduction -12dB -12dB -12dB MIC input signal for 0dBm0, 1 f = 1024 Hz 17.5mV 5mV 5mV EP output signal in mV rms. @ 0dBm0, 1024 Hz, no load (default gain) / @ 3.14 dBm0 508mV 2.1Vpp 407mV 1.68Vpp 1220mV 4.5Vpp Sidetone gain at default settings 25.0dB 25.3 dB -∞ dB
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 363.8.5.4 Adjust the sound level by AT+CVLVL There are two adjustable amplifiers on audio signal output path: <rxVol>, <rxGain>. Four AT commands are provided for tune them.. <rxVol>: AT+CLVL, AT+CVLVL,AT+CRXVOL <rxGain>: AT+CRXGAIN AT+CRXVOL is used for fine tuning for <rxVol>. AT+CLVL and AT+CVLVL are used for coarse tuning for <rxVol>. AT+CVLVL changes the sound level values of the command CLVL. Now we provide 5 levels for each audio channel. The level 0 is muted and it can not be changed by CVLVL. Levels 1 to 4 are supported to change the value of sound level. CVLVL command could let you change these four levels. The bigger the number presents the louder the voice. And the range of each level is -5000 to 5000. NOTE: This command influences digital volume of output signal after speech decoder. Please check the reference document [1] for detailed information of each AT command. 3.9 USIM card interface 3.9.1 USIM card application You can use AT Command to get information in USIM card. For more information, please refer to document [1]. The universal subscriber identification module (USIM) is a smart card for UMTS/GSM cellular applications. The USIM provides the required subscription information to allow the mobile equipment to attach to a GSM or UMTS network. The USIM also provides the subscriber's verification procedures as well as authentication methods for network authentication during the attach procedures. The USIM card can be inserted into any UMTS/GSM USIM equipped handset, allowing the user to receive or make calls, and receive other subscribed services from any USIM equipped handset, thus enabling more handset independence for the user. Both 1.8V and 3.0V SIM Cards are supported. The SIM interface is powered from an internal regulator in the module having nominal voltage 2.8V. All pins reset as outputs driving low. Logic levels are as described in the table below. Table 15: USIM interface
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 37Table 16: Signal of USIM interface (board-to-board connector) Following is the reference circuit of the USIM interface. We recommend using an Electro-Static discharge device ST (www.st.com ) ESDA6V1W5 or ON SEMI (www.onsemi.com ) SMF05C for “ESD ANTI”. If you remove ESD components, please replace them with 33pF and 10pF capacitors, it’s good for EMI performance. Note that the USIM peripheral circuit close to the USIM card socket. You can select the 6 pins USIM card. The reference circuit about 6 pins USIM card illustrates as in the following figure. Figure 20: USIM interface reference circuit with 6 pins USIM card *Note: USIM_DATA has been pulled up with a 22kR resistor to V_USIM in module. So please do not pull up or pull down in your application circuit. As shown in above figure, SMF05C is used for ESD protection for SIM interface. And 220nF capacitor on V_USIM is used to reduce interference 3.9.2 Design considerations for USIM card holder For 6 pins USIM card, we recommend to use Amphenol C707 10M006 512 2. You can visit http://www.amphenol.com for more information about the holder. Pin Signal Description 57 V_USIM USIM Card Power output depends automatically on USIM mode，one is 3.0V±10%, another is 1.8V±10%. Current is about 10mA. 56 USIM_DATA USIM Card data I/O, which has been pulled up with a 22kR resistor to V_USIM in module. So please do not pull up or pull down in your application circuit. 12 USIM_CLK USIM Card Clock 13 USIM_RESET USIM Card Reset
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 38 Figure 21: Amphenol C707 10M006 512 2 SIM card holder Table 17: Pin description (Amphenol SIM card holder) Pin Signal Description C1 USIM_VDD SIM Card Power supply, it can identify automatically the SIM Card power mode，one is 3.0V±10%, another is 1.8V±10%. Current is about 10mA. C2 USIM_RST SIM Card Reset. C3 USIM_CLK SIM Card Clock. C5 GND Connect to GND. C6 VPP Connect to USIM_VDD C7 USIM_DATA SIM Card data I/O. 3.10 I2C interface SIM5215A contains an I2C interface.It is used for connecting peripheral equipment. Use AT Command to read/write values of I2C peripheral equipment. AT+CRIIC is used for read values from register of I2C peripheral equipment. AT+CWIIC is used for write values to register of I2C peripheral equipment Because I2C has been pulled up in SIM5215A, there is no need to be pulled up by customer. Table 18: PIN define of IIC interface *Note：IIC_SDA and IIC_SCL have been pulled up with two 2.2kR resistors to 2.6V in module. So there is no need to pull them up in your application circuit. Pin Name Function Lever 47 IIC_SDA Serial interface data input and output 46 IIC_SCL Serial interface clock input
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 393.11 USB interface SIM5215A supports high and full speed universal serial bus (USB) interface, and mode of USB can be switched by AT command ( AT+CUSBSPD ) This interface is compliant with the USB 2.0 specification. The high speed is up to 480Mbps. so please pay attention to influence of junction capacitance of ESD component on USB data lines. Typically, the capacitance value should be less than 4pF @1MHz. Links to these and related specifications can be found at www.usb.org Table 19: USB PIN connect Input voltage scope( V ) Name PIN( B to B) Min Type Max USB_VBUS 9 4.4 5.0 5.25 USB_DP 60 USB_DM 59 They are compliant with the USB 2.0 specification. GND 58 VBUSD+GNDD-VBUSD+D-GNDSeries A , BorMini-B Receptacle Figure 22: USB interface Currently SIM5215A supports the USB suspend & resume mechanism which can help to save much current. If no transaction on USB bus then SIM5215A will enter to suspend mode and when some events happens (such as incoming call or SMS received) during the suspend mode then SIM5215A will resume automatically. Note: when use the Mini-B it has no ID line. Note：Two limitations on ESD protection: less than 4 pF and VBUS not to rail.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 403.12 Module Reset SIM5215A also have a RESET pin (PIN29) input, When should reset the module, one can push the RESET pin to low and the module reset. Because the Reset pin has been pulled up in SIM5215A, there is no need to pull it up in application circuit. The internal circuit about RESET pin is shown below. NOTE：50ms<t<200ms. In order to improve the ESD of Reset pin, the bidirectional ESD component is suggested to be used on Reset pin. NOTE: In automatically powering on mode, it is suggested that the SIM5215A should reset by RESET pin after power on. 3.13 General purpose input & output (GPIO) SIM5215A provides a limited number of General Purpose Input/Output signal pin. Please check the following table: Table 20: GPIO Pins of SIM5215A GPIO0 is used for interrupt pin, default triggering mechanism is level trigger, and low level will trigger interrupt. After interrupt, SIM5215A would send out Alarm information to host CPU. Please Refer to “AT Command Manual”. GPIO1 is used to control Status LED, the LED driving circuit of GPIO1 is shown below, and status table is Table 23. Pin Name Direction Function 65 GPIO0 Input, interrupt Input Port with interrupt/PCM_DIN Use AT Command to set interrupt triggering mechanism & polarity . 10 GPIO1 Output used as status LED driver 30 GPIO2 Input General Purpose Input Port without interrupt/PCM_SYNC 31 GPIO3 Output General Purpose Output Port (default value: Low Level)/PCM_CLK 32 GPIO4 Input RF Control Interrupt：Flight Mode Switch 33 GPIO5 Output General Purpose Output Port (default value: Low Level)/PCM_DOUT
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 41 Figure 23: status LED circuit Notes: 300R Resistor’s value depends on LED. And status indicating table is as follow. Table 21：meanings of status LED Status Data Voice Always On Searching Network Searching Network/Call Connect 200ms ON, 200ms OFF Data Transmit 800ms ON, 800ms OFF Registered network Registered Network Off Power Off GPIO4 can be used to control RF close or on, the Flight Mode Switch logic table is shown below. You can use AT Command to read or to write GPIO2, GPIO3, GPIO5 status (High or Low level). Table 22：Logic of GPIO4 Use AT Command to read or write GPIO2, GPIO3, GPIO5 status (High or Low level). NOTE： For SIM5215A, GPIO0, GPIO2, GPIO3 and GPIO5 can be multiplex function, you can use them as PCM interface to connect extend codec. Please refer section 3.18 and document [1] for detail information. GPIO4 Status Module Action L Flight Mode: RF is closed. H Normal Mode: RF is working.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 423.14 ADC interface SIM5215A has an analog-to-digital converter (ADC) that is available for digitizing analog signals such as battery voltage, temperature and so on, it is on PIN 30, namely HKADC0, This HKADC0 is 8 bit successive-approximation circuit, and performance specification is shown in the following table: Table 23：ADC Characteristics Specification Min Typ Max Unit Comments/Conditions Resolution 8 Bits differential nonlinearity -4 +4 LSB Integral nonlinearity -8 +8 LSB Gain Error -2.5 +2.5 % Offset Error -4 +40 LSB . Analog Vdd = ADC reference 300 kHz - 1.2 MHz sample rate Input Range GND 2.2 V 3dB input bandwidth 2500 Source resistance = 50 Ω Input serial resistance 2 kΩ Sample and hold switch resistance Input capacitance 53 pF Power-down to wakeup 9.6 19.2 μs One can introduce a signal into this ADC pin directly and use AT+CADC to get the raw data value between 0 and 255 which can then be transformed to any other type such as voltage, temperature etc. Note: if the signal is voltage then the voltage value must no more than 2.2V. Show an application sample: You can use it as a temperature ADC channel, too. The reference design of a temperature ADC circuit is as the figure below. R1 is 0Ω, R2 is 47 kΩ and R3 is 68 kΩ for reference. ,,the return value is supposed to 158 by AT+CADC, and you can use some arithmetic to translate “158” to a specifically temperature.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 43 Figure 24：ADC interface used for temperature sampling reference circuit 3.15 LDO power output SIM5215A has a LDO power output, it is PIN 40, namely VREG_AUX. This LDO default output voltage is 2.85V, and the driver current is rated for 250mA. This LDO could be used as a power supply for SD card, and the SD card data/command lines can also been pulled up by it. One can switch the LDO by AT+CVAUXS also one can set the LDO’s output voltage by AT+CVAUXV. NOTE： SIM5210 has no such pin. This is a difference between SIM5215A and SIM5210. 3.16 Camera module interface SIM5215A provides a camera module interface for supporting camera and video phone functions. If you do not use the camera interface, you can configure these pins as configurable GPIOs. Please refer the AT command Document (AT+CCGSWT). SIM5215A support both digital and analog sensor (NTSC or PAL composite signals output), YUV and RGB data format. When using analog sensor, you need to use AK8856 (currently we supported) to decode NTSC or PAL composite signals into digital data first and then transmit the digital data into camera interface. Note: When you use a YUV output sensor, you should connect the sensor data output pin(OV7670 : data0~data7; OV2640 and OV7725 : data2~data9) to SIM5215A CAM_D2~CAM_D9. The camera module interface consists of the following:
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 44■ 8 bit data bus for the pixel data information ■ Horizontal and vertical synchronization signals ■ 2 wire I2C bus as a control path between the SIM5215A module device and the camera module The following table is the pin definition. Table 24: PIN define of sensor interface We have tested several kinds of digital sensors, such as OV2640, OV7670，OV7725 and a NTSC/PAL digital video decoder named AK8856 (it can decode NTSC or PAL composite video signals into digital video data, and with AK8856 you can use analog sensor as video source) . Software must be adjusted when use other kinds of sensors. Customer can contact us and give us your request. The power supply of the sensor should be supplied by customer. Pin Name Function 15 CAM_D2 Bit 0 of RGB or YUV D0 video component output 54 CAM_D3 Bit 1 of RGB or YUV D1 video component output 16 CAM_D4 Bit 2 of RGB or YUV D2 video component output 53 CAM_D5 Bit 3 of RGB or YUV D3 video component output 17 CAM_D6 Bit 4 of RGB or YUV D4 video component output 52 CAM_D7 Bit 5 of RGB or YUV D5 video component output 18 CAM_D8 Bit 6 of RGB or YUV D6 video component output 51 CAM_D9 Bit 7 of RGB or YUV D7 video component output 19 CAM_HSYNC Video horizontal line synchronization signal 50 CAM_VSYNC Vertical sync output 21 CAM_CLK master clock input 49 CAM_PCLK Pixel clock output 48 CAM_RESET Master reset input, active low 47 IIC_SDA Serial interface data input and output 46 IIC_SCL Serial interface clock input 20 GND Ground 22 CAM_STANDBY Power-down mode selection “0”=Normal mode, “1”=Power-down mode
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 45 Figure 25： Camera module interface NOTE：The data and clock lines of camera are sensitive for the capacitors. Generally the capacitance of the ESD component is too big, if those ESD components are put on to the parallel line then the signal will fade a lot. In order to improve the ESD performance, some 10pF capacitor can be put on data and clock lines for ESD. If one like to choose smaller capacitance ESD component, it should be smaller than 10pF. Figure 26： Camera module interface with analog sensor
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 46*NOTE：STANDBY pin of SIM5215A is used to control the powering down or on of camera module. So when one designs application circuit, one should pay attention to the polarity of STANDBY. Default polarity of SIM5215A is shown below: LOW: normal operation HIGH: power-down In Figure 26, the polarity of AK8856 power down is contrary to that of SIM5215A STANDBY, so one must use a NPN triode to reverse the polarity of SIM5215A and connect AK8856. If you do not use the camera interface you can configure these pins to configurable GPIOs. Please refer the AT command Document (AT+CCGSWT). 3.17 MMC/SD card interface SIM5215A provides one MMC/SD card interface. The SIM5215A acts as a HOST. The SIM5215A device has a 4-bit SD interface. It supports 4 bits of data and a command signal. In addition, a clock output is provided by the SIM5215A to be used as SD_CLK, or MMC_CLK. This clock is designed to be used with the MMC/SD interface and is what customers should use with the MMC/SD cards. A LDO power output is provided by the SIM5215A for the power supply of MMC/SD card, it is PIN 40, name VREG_AUX. This LDO default output voltage is 2.85V, and driver current is rated for 250mA. Meanwhile data lines can be pulled up by VREG_AUX. The reference circuit of MMC/SD card interface is shown in Figure 27. The 10KR pull-up resistors on data and clk lines are necessary. The 33pF capacitor is used to reduce RF interference. To get good ESD performance, some ESD components should be added beside the SD/MMC card holder. The following features are implemented: ■ Supports 4-bit SD, 1-bit SD, and 1-bit MMC interface ■ SW-configurable edge latching (falling or rising) ■ SW-configurable data and command values change (rising or falling edge) ■ Clock-gating for power saving (and a power-saving option to always turn the clock off when bus is idle) ■ Flow control option to prevent overflow and underflow ■ SD_CLK output up to 50 MHz Following figure illustrate and describe the MMC/SD interface.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 47 Figure 27： MMC/SD interface As mentioned, the MMC/SD interface supports SD according to the SD physical layer specification 2.0, up to 4-bit data mode. It is also capable of supporting 1-bit MMC according to MCC specification 3.31. While the same hardware controller is used, the initialization for SD cards and MMCs are different. SIM5215A will auto-detect which card is inserted (SD or MMC, or no card) and will proceed accordingly. Table 25: MMC/SD pin of SIM5215A voltage scope( V ) Name Direction Pin On board-to-board connector Min Type Max SD_DATA0 Input /Output 36 2.7 2.85 3.0 SD_DATA1 Input /Output 37 2.7 2.85 3.0 SD_DATA2 Input /Output 38 2.7 2.85 3.0 SD_DATA3 Input /Output 39 2.7 2.85 3.0 SD_CLK Output 34 2.7 2.85 3.0 SD_CMD Output 35 2.7 2.85 3.0 VREG_AUX Output 40 2.7 2.85 3.0 Table 26 : MMC/SD pin connector Name SD card MMC card SD_DATA0 SD_DATA0 MMC_data SD_DATA1 SD_DATA1 NC SD_DATA2 SD_DATA2 NC
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 48SD_DATA3 SD_DATA3 NC SD_CLK SD_CLK MMC_CLK SD_CMD SD_CMD MMC_CMD VREG_AUX SD_VDD MMC_VDD Note： SD card interface function is supported by SIM5215A software. You can use VREG_AUX for power supply of SD card and as the pull up power for data lines. 3.18 PCM Interface SIM5215A provides hardware PCM interface for external codec. PCM interface pins are multiplex on GPIOs(default setting). Use AT+CPCM command to change pins function between PCM function and GPIOs.If enbale PCM function ,AT+CPCM command can be used to configure the PCM mode user want. Also the slot of PCM can be configured by AT+CPCMSLOT. SIM5215A PCM interface can be used in two modes: 1) the default mode is its auxiliary PCM (8 kHz long sync mode at 128kHz clk); 2) the other mode is its primary PCM (8 kHz short sync mode at 2048 kHz clk). In short-sync (primary PCM) mode, the SIM5215A can be a master or a slave. In long-sync (auxiliary PCM) mode, the SIM5215A is always a master; there is no slave support. SIM5215A support 3 PCM formats: 8 bits (υ-law or A-law) and 16 bits (linear). The PCM interface is a 4 pin, digital interface that enables PCM communication between the Module and an external codec or DSP. Both the PCM interface modes, auxiliary and primary, use the same SIM5215A pins. The PCM pin assignment is shown in the table below. Note: Please reference document [22] for detailed information of PCM Application Note. Table 27 : PCM pin assignment Pins Pin No. AUX_PCM functionality Primary_PCM functionality Description PCM_CLK/GPIO3 31 AUX_PCM_CLK PCM_CLK PCM clock for PCM communication to external codec PCM_SYNC/GPIO2 30 AUX_PCM_SYNC PCM_SYNC PCM data strobe for PCM communication to PCM mode SYNC CLK MODE Format Slot Auxiliary 8KHz 128KHz Master Only slot 0 Primary 8KHz 2.048MHz Slave/MasterA-law(8 bits)υ-law(8bits) linear(16 bits) 0~15(Changed by AT command：at+cpcmslot) Default：slot 0
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 49external codec PCM_DIN/GPIO0 65 AUX_PCM_DIN PCM_DIN PCM data input to the Module (Rx) PCM_DOUT/GPIO5 33 AUX_PCM_DOUT PCM_DOUT PCM data output from the Module (Tx) The default PCM interface on power up is the auxiliary PCM interface. Under PCM, the data is output on the rising edge of PCM_CLK and sampled at the falling edge of PCM_CLK. Primary PCM is disabled at power up or when RESET is asserted, but you can use AT command to enable the primary PCM mode. PCM Interface can be operated in Master and Slave mode. When the PCM interface is configured, PCM Tx data will be routed from the external codec Mic through the DSP encode path in the Module. PCM Rx data will be routed through the DSP decode path to the external codec speaker. When using the PCM Interface, the Module can be set either into Master Mode or Slave Mode. In Master Mode, the Module drives the clock and sync signals that are sent out to the external codec via the PCM Interface. When in Slave Mode, the external codec drives the clock and sync signals that are sent to the Module. Configuration Mode can be selected either primary or auxiliary. Primary configuration mode uses 2.048MHz clock and 8 kHz short sync clock, and auxiliary configuration mode uses 128KHz clock and 8 kHz long sync clock. One important consideration is that Slave mode is only available for use with Primary configuration Mode. PCM formats can also be chosen by AT command. In the default configuration, Module is the Auxiliary Master. Many parameters of external codec audio channel are not available. Only RxVolume, FIR, are still available after enabling PCM. Table 30: PCM external codec Characteristics Audio Device no. AT+CSDVC= 4 Name External Codec micAmp No available txGain No available txVol No available Default MIC path Parameters txFilter [tap0~6]0xff33, 0x05d8,0xf488, 0x0af3, 0x24bb, 0xca42,0x7c95 rxGain No available rxVol -100 stGain No available Default Output path Parameters rxFilter [tap0~6]0xff00, 0xfac9,0x0571, 0xf365, 0x0bc2, 0xf2bb,0x533a
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 50Default values of sound level (level 1 to 4) 0 0 0 0 NOTE: Please check the reference document [1] for detailed information of each AT command. Both PCM modes are discussed in this section, followed by additional PCM topics. 3.18.1 Auxiliary PCM (128 kHz PCM clock) The auxiliary PCM interface enables communication with an external codec to support hands-free applications. υ-law codec are supported by the auxiliary PCM interface. The auxiliary codec port operates with standard long-sync timing and a 128 kHz clock. The AUX_PCM_SYNC runs at 8 kHz with 50% duty cycle. Most υ-law codec support the 128 kHz clock. Figure 28：AUX_PCM_SYNC timing Figure 29：EXT_CODEC to SIM5215A timing
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 51 Figure 30：SIM5215A to EXT_CODEC timing Table 31 : Auxiliary PCM mode timing parameters Parameter Description Min Typical Max Unit Note T(auxsync) AUX_PCM_SYNC cycle time – 125 - μs T(auxsynch) AUX_PCM_SYNC high time 62.4 62.5 - μs T(auxsyncl) AUX_PCM_SYNC low time 62.4 62.5 - μs T(auxclk) AUX_PCM_CLK cycle time - 7.8 – μs * T(auxclkh) AUX_PCM_CLK high time 3.8 3.9 – μs T(auxclkl) AUX_PCM_CLK low time 3.8 3.9 – μs T(suauxsync) AUX_PCM_SYNC setup time high before falling edge of PCM_CLK 1.95 – – μs T(hauxsync) AUX_PCM SYNC hold time after falling edge of PCM_CLK 1.95 – – μs T(suauxdin) AUX_PCM_DIN setup time before falling edge of AUX_PCM_CLK 70 – – ns T(hauxdin) AUX_PCM_DIN hold time after falling edge of AUX_PCM_CLK 20 – – ns T(pauxdout) Delay from AUX_PCM_CLK rising to AUX_PCM_DOUT valid – – 50 ns *Note: t(auxclk) = 1/(128 kHz). 3.18.2 Primary PCM (2048 kHz PCM clock) The aux codec port also supports 2.048 MHz PCM data and sync timing for υ-law codec that matches the sync timing — this is called the primary PCM interface (or just PCM interface). You can use AT+CPCM command to change the mode you want.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 52Figure 31：PRIM_PCM_SYNC timing Figure 32：EXT_CODEC to SIM5215A timing Figure 33：SIM5215A to EXT_CODEC timing Table 32 : Primary PCM mode timing parameters Parameter Description Min Typical Max Unit Note T(sync) PCM_SYNC cycle time – 125 – μs T(synch) PCM_SYNC high time 400 500 – ns T(syncl) PCM_SYNC low time – 124.5 – μs T(clk) PCM_CLK cycle time – 488 – ns T(clkh) PCM_CLK high time – 244 – ns T(clkl) PCM_CLK low time – 244 – ns T(susync) PCM_SYNC setup time high before falling edge of PCM_CLK 60 – – ns T(hsync) PCM_SYNC hold time after falling edge of PCM_CLK 60 – – ns T(sudin) PCM_DIN setup time before falling edge of PCM_CLK 50 – – ns
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 53T(hdin) PCM_DIN hold time after falling edge of PCM_CLK 10 – – ns T(pdout) Delay from PCM_CLK rising to PCM_DOUT valid – – 350 ns T(zdout) Delay from PCM_CLK falling to PCM_DOUT HIGH-Z – 160 – ns 3.18.3 Transmitting PCM data by USB Not only by hardware PCM interface, but also SIM5215A can transmit PCM data by USB. To transmit PCM data by USB, one should make sure that driver of SIM5215A has be loaded on host part. Then the NEMA port of SIM5215A can be recognized by host. One can switch it from NEMA port mode to data mode or from data mode to NEMA port mode by AT+DSWITCH. In data mode, one can control sending and receiving PCM data by AT+CPCMREG. Note: For 5213/5214/5215/5216, NEMA port is used to transmit PCM data.Please reference document [22] for detailed information of PCM Application Note. 3.19 Firmware update If SIM5215A modules are embed into user’s equipment and can’t be taken out easily, modules provide two firmware update methods that called SD card update and USB interface update. 3.19.1 SD Card update SD card update means that user can use SD card which the new firmware has been put in the SIM5215A modules to update the old Firmware .
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 54Figure 34：SD card update reference circuit Figure 35：SD card update procedure Note1: Firmware contains：Amss.mbn, dbl.mbn, osbl.mbn, fsbl.mbn, partition.mbn, NPRG6270.hex, ENPRG6270.hex. Note2: Pulling down GPIO0 when SIMcom module is booting up, is to enable the SD Card Update function. Note3: The status LED(GPIO1) indicates that the update is going on when booting. Note4: This update function does not support QCN. So if the flash in the modules will be erased, please do backup QCN by QDL at first. Note5: This function is supported by the version 1575B04V01SIM5215A and later version. Note6: Modules in user equipment must connect a SD slot. Note7: Modules GPIO0 can be controlled by a GPIO on CPU/MCU, and must be pulled up after the status LED lighting . This connecting may conflict with PCM function because GPIO0 is multiplexed as the PCM_DIN. 3.19.2 USB interface update. If SIM5215A communicate with MCU/CPU by hardware UART interface, user can route module USB to a USB-A/USB-B/mini-B slot, and connect USB slot to PC with USB cable .Figure 36 is the reference circuit.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 55 Figure 36：USB interface update reference circuit (UART communicate) MCU/CPU works with SIM5215A USB interface. User can select a USB 2.0 analog switch if one wants to use USB update. Figure 37 is the reference circuit. In USB update mode, modules are connected to PC on USB cable by CPU/MCU GPIO controlling. For USB 2.0 analog switch, User can use ON Semiconductor NLAS7222C. Figure 37：USB interface update reference circuit (USB DPDT switch)
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 56 Figure 38：USB interface update procedure Note1: USB 2.0 analog switch chip may add cost. Note2: If MCU/CPU works with SIM5215A USB interface we recommend to use SD Card update
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 57 4 Antenna interface The RF interface has an impedance of 50Ω. To suit the physical design of individual applications SIM5215A offers two alternatives: z Recommended approach: antenna connector on the component side of the PCB z Antenna pad and grounding plane placed on the bottom side. To minimize the loss on the RF cable, it needs to be very careful to choose RF cable. We recommend that the insertion loss should meet the following requirements: z GSM900/GSM850 <1 dB z DCS1800/PCS1900 <1.5 dB z WCDMA 1900 <1.5 dB z WCDMA 850 <1 dB 4.1 Antenna installation 4.1.1 Antenna connector SIM5215A use MURATA MM9329-2700 RF connector on the module side, we recommend that user uses MURATA MXTK88XXXXX as matching connector on the application side. Please refer to appendix for detailed information about MURATA MXTK88XXXXX. Figure 39： Antenna Connector
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 584.1.2 Antenna pad The antenna can be soldered to the pad, or attached via contact springs. To help you to ground the antenna, SIM5215A comes with a grounding plane located close to the antenna pad. Figure 40： Antenna pad SIM5215A material properties: SIM5215A PCB Material: FR4 Antenna pad: Gold plated pad
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 59 4.2 Module RF output power Table 33 : SIM5215A conducted RF output power Frequency Max Min GSM850 33dBm ±2db 5dBm±5db E-GSM900 33dBm ±2db 5dBm±5db DCS1800 30dBm ±2db 0dBm±5db P CS1900 30dBm ±2db 0dBm±5db GSM850(8-PSK) 27dBm ±3db 5dBm±5db E-GSM900(8-PSK) 27dBm ±3db 5dBm±5db DCS1800(8-PSK) 26dBm ±3db 0dBm±5db P CS1900(8-PSK) 26dBm ±3db 0dBm±5db WCDMA 1900 24dBm+1/-3db <-50dBm WCDMA 850 24dBm+1/-3db <-50dBm 4.3 Module RF receiver sensitivity Table 28: SIM5215A conducted RF receive sensitivity Frequency Receive sensitivity GSM850 < -107dBm E-GSM900 < -107dBm DCS1800 < -107dBm P CS1900 < -107dBm WCDMA 1900 < -108dBm WCDMA 850 < -107dBm 4.4 Module operating frequencies Table 29: SIM5215A operating frequencies Frequency Receive Transmit GSM850 869 ～ 894MHz 824 ～ 849MHz E-GSM900 925 ～ 960MHz 880 ～ 915MHz DCS1800 1805 ～ 1880MHz 1710 ～ 1785MHz P CS1900 1930 ～ 1990MHz 1850 ～ 1910MHz WCDMA 1900 1930 ～ 1990MHz 1850 ～ 1910MHz WCDMA 850 869 ～ 894MHz 824 ～ 849 MHz
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 605 Electrical, reliability and radio characteristics 5.1 Absolute maximum ratings Absolute maximum rating for power supply and voltage on digital and analog pins of SIM5215A are list in following table: Table 30: Absolute maximum ratings Parameter Min Max Unit Peak current of power supply 0 3.0 A RMS current of power supply (during one TDMA- frame) 0 0.9 A Voltage at digit pins -0.3 3.0 V Voltage at analog pins -0.3 3.0 V Voltage at digit/analog pins in POWER DOWN mode -0.25 0.25 V Voltage at VBAT -0.3 4.4 V 5.2 Operating temperatures The operating temperature is listed in following table: Table 31: SIM5215A operating temperature Parameter Min Max Unit Note Operating temperature -30 +80 ℃ The module is functional in allthe temperature range, and it fully meets the ETSI specifications. Storage temperature -40 +85 ℃ 5.3 Power supply ratings Table 32: SIM5215A power supply ratings Parameter Description Conditions Min Typ Max UnitVBAT Supply voltage Voltage must stay within the min/max values, including voltage drop, ripple, and spikes.3.3 3.8 4.2 V
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 61Voltage drop during transmit burst Normal condition, power control level for Pout max 300 mV Voltage ripple Normal condition, power control level for Pout max @ f<400kHz @ f>400kHz 50 10 mV Average supply current POWER DOWN mode 35 uA IVBAT Peak supply current (during transmission slot every 4.7ms) Power control level for Pout max. 1.7 2 A 5.4 Current consumption The values for current consumption in Vbat 3.8V are listed in Table 39. Here, “suspended” means that SIM5215A is connected with USB BUS but don’t transfer data. Table 339: SIM5215A current consumption GSM IDLE mode (without USB suspend) GSM850 Sleep @DRX=2 3.0mA Sleep @DRX=5 1.8mA Sleep @DRX=9 1.4mA GSM900 Sleep @DRX=2 3.0mA Sleep @DRX=5 1.86mA Sleep @DRX=9 1.4mA DCS1800 Sleep @DRX=2 3.1mA Sleep @DRX=5 1.7mA Sleep @DRX=9 1.4mA PCS1900 Sleep @DRX=2 3.1mA Sleep @DRX=5 1.6mA Sleep @DRX=9 1.5mA GSM IDLE Mode(with USB suspend) GSM850 Sleep @DRX=2 4.3mA Sleep @DRX=5 2.8mA Sleep @DRX=9 2.2mA GSM900 Sleep @DRX=2 4.3mA Sleep @DRX=5 2.7mA Sleep @DRX=9 2.1mA DCS1800 Sleep @DRX=2 4.4mA Sleep @DRX=5 2.8mA Sleep @DRX=9 2.3mA
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 62PCS1900 Sleep @DRX=2 4.4mA Sleep @DRX=5 2.7mA Sleep @DRX=9 2.2mA Voice Call GSM850 @power level #5 <300mA,Typical 270mA GSM 900 @power level #5 <310mA,Typical 270mA DCS1800 @power level #0 <220mA,Typical 210mA PCS1900 @power level #0 <200mA,Typical 190mA GPRS Data DATA mode, GPRS ( 1 Rx,4 Tx ) CLASS 12 GSM 850 @power level #5 <540mA GSM 900 @power level #5 <500mA DCS1800 @power level #0 <380mA PCS1900 @power level #0 <380mA DATA mode, GPRS ( 3Rx, 2 Tx ) CLASS 12 GSM 850 @power level #5 <390mA GSM 900 @power level #5 <380mA DCS1800 @power level #0 <300mA PCS1900 @power level #0 <250mA EDGE Data DATA mode, EDGE( 1 Rx,4 Tx ) CLASS 12 GSM 850 @power level #8 <350mA GSM 900 @power level #8 <340mA DCS1800 @power level #2 <325mA PCS1900 @power level #2 <290mA DATA mode, EDGE( 3Rx, 2 Tx ) CLASS 12 GSM 850 @power level #8 <250mA GSM 900 @power level #8 <240mA DCS1800 @power level #2 <230mA PCS1900 @power level #2 <210mA UMTS IDLE Mode (without USB suspend) WCDMA 1900 Sleep @DRX=9 1.2mA Sleep @DRX=8 2.1mA Sleep @DRX=6 4.2mA WCDMA 850 Sleep @DRX=9 1.2mA Sleep @DRX=8 2.0mA Sleep @DRX=6 4.4mA UMTS IDLE Mode (with USB suspend) WCDMA 1900 Sleep @DRX=9 1.9mA Sleep @DRX=8 2.6mA Sleep @DRX=6 4.6mA WCDMA 850 Sleep @DRX=9 1.9mA Sleep @DRX=8 2.7mA Sleep @DRX=6 4.8mA UMTS Voice call WCDMA 1900 @Power 23dBm Typical 580mA @Power 10dBm Typical 205mA @Power-55dBm Typical 174mA WCDMA 850 @Power 23dBm Typical 510mA @Power 10dBm Typical 195mA
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 63@Power-55dBm Typical 131mA HSDPA Data（only 5216A） WCDMA 1900 @Power 23dBm Typical 584mA @Power 10dBm Typical 331mA @Power-55dBm Typical 179mA WCDMA 850 @Power 23dBm Typical 536mA @Power 10dBm Typical 231mA @Power-55dBm Typical 165mA 5.5 Electro-Static discharge Normally SIM5215A is mounted on customer host board, although some ESD components have been added in SIM5215A, to improve ESD, one should put some ESD components on customer host board. The ESD components should be placed beside the connectors which the human body might touch, such as SIM card holder, T-flash card holder, audio jacks, switches, keys, etc.. Below is the SIM5215A ESD performance measurement table, the results are got from our EVB board test. Table 40: The ESD performance measurement table (Temperature: 25 , Humidity:℃ 45% ) Part Contact discharge Air discharge VBAT,GND ±4KV ±10KV UART,USB ±4KV ±8KV Antenna port ±4KV ±10KV Other port ±3KV ±8KV In order to get the best ESD performance, one must deal carefully with ground of SIM5215A on host board, which is most important. Here are some advices: 1. Bare the copper on the host board. Figure 36 is SIM5215A PCB decal. There is a big area which is poured with copper. When one mounts the SIM5215A on host board, the bottom shield of SIM5215A can be connected to ground well through this copper area. The SIM5215A PCB decal can be got from our FAE or sales people. 2. Choose 2.0mm height 70-pin socket for host board. Because the height of 70-pin plug on SIM5215A is 1.5mm, in order to better connecting the SIM5215A to the ground of the host board, it is suggested to choose 2.0mm height 70-pin socket for host board. NAS AXK770247G is suitable. 2.5mm will be too high, it will be suspending above host board. 1.5mm will be too tight. 3. Fill some conductors between the bottom of SIM5215A and host board. Figure 37 shows the conductor material we use. Other conductor material can be used as well. 4. Solder SIM5215A to ground through 2 out-feet of bottom shield.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 64There are 2 out-feet of SIM5215A bottom shield. One can solder them to bare cooper on host board, so that SIM5215A can be connected to the ground well. Figure 41: SIM5215A PCB decal Figure 42: SIM5215A Soldering 2 out-feet of bottom shieding to host board
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 656 Mechanics This chapter describes the mechanical dimensions of SIM5215A. 6.1 Mechanical dimensions of SIM5215A Following are SIM5215A top view, side view and bottom view. These show you Mechanical dimensions of SIM5215A. Figure 43: Mechanical dimensions of SIM5215A（Unit: mm） 6.2 Mounting SIM5215A onto the application platform Use the connector AXK870145WG and four mounting pads to fix the SIM5215A onto the customer platform.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 66 Figure 44: PIN sequence of SIM5215A When one mounts SIM5215A on host board, please pay attention to that the pin sequence of SIM5215A is mirror image of pin sequence of 70-pin socket connector on host.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 67 Figure 45: Mirror image of pin sequence 6.3 Board-to-board connector We recommend users to adopt NAIS AXK770247G as the board to board connector in their own PCB to connect with SIM5215A. These high density SMT connectors are designed for parallel PCB-to-PCB applications. They are ideal for using in VCRs, notebook PCs, cordless telephones, mobile phones, audio/visual and other telecommunications equipment where reduced size and weight are important. The height of AXK770247G is 2.0mm. Following are parameters of AXK770247G for more details, you can login http://www.NAIS-E.com for more information. Mechanical dimensions of the NAIS 70pin connector
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 68 Figure 46: NAIS AXK770247G board-to-board connector pin side Figure 47: NAIS AXK870145WG board-to-board connector pin side NOTE：The connector NAIS AXK870145WG is used in SIM5215A side and NAIS AXK770247G is used in pin side (host board side). 6.4 RF connector and adapter cable The RF connector in module side is Murata Company RF Connectors MM9329-2700, it makes a pair with Murata Company RF cable MXTK88TK2000. It has high performance with wide frequency range, surface mountable and reflow solderable. Following are parameters.
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 69 Figure 48: RF connector MM9329-2700 Figure 49: RF adapter cable MXTK88TK2000 For more information about the connector, please visit http://www.murata.com/
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 706.5 View of the SIM5215A Bottom View Top View Figure 50: Top and Bottom View of SIM5215A 6.6 PIN assignment of board-to-board connector of SIM5215A Table 34 : Connection diagrams Pin No Define Measure without usage Pin No Define Measure without usage 1 VBAT VBAT 70 VBAT VBAT 2 VBAT VBAT 69 VBAT VBAT 3 VBAT VBAT 68 VBAT VBAT 4 GND GND 67 GND GND 5 GND GND 66 GND GND 6 UART_TXD NC 65 GPIO0 NC 7 UART_CTS NC 64 UART_RXD NC(See Note) 8 UART_DCD NC 63 UART_RTS NC 9 USB_VBUS NC 62 UART_DTR NC 10 GPIO1 NC 61 UART_RI NC 11 VRTC NC 60 USB_D_P NC 12 USIM_CLK NC 59 USB_D_M NC 13 USIM_RESET NC 58 GND GND 14 Reserved NC 57 V_USIM NC 15 CAM_D2 NC 56 USIM_DATA NC(See Note) 16 CAM_D4 NC 55 Reserved NC 17 CAM_D6 NC 54 CAM_D3 NC
SIM5215A _HD_V1.02 Hardware Design SIM5215A _HD_V1.02 26.08.2010 7118 CAM_D8 NC 53 CAM_D5 NC 19 CAM_HSYNC NC 52 CAM_D7 NC 20 GND GND 51 CAM_D9 NC 21 CAM_CLK NC 50 CAM_VSYNC NC 22 CAM_STANDBY NC 49 CAM_PCLK NC 23 SPK_P NC 48 CAM_RESET NC 24 SPK_N NC 47 IIC_SDA NC(See Note) 25 EAR_P NC 46 IIC_SCL NC(See Note) 26 EAR_N NC 45 POWER_ON NC 27 HPR NC 44 MIC_N 0.1u cap to ground 28 HPL NC 43 MIC_P 0.1u cap to ground 29 RESET NC 42 HP_MICP NC 30 GPIO2 NC 41 HKADC NC 31 GPIO3 NC 40 VREG_AUX NC 32 GPIO4 NC 39 SD_DATA3 NC 33 GPIO5 NC 38 SD_DATA2 NC 34 SD_CLK NC 37 SD_DATA1 NC 35 SD_CMD NC 36 SD_DATA0 NC Note: UART_RXD has been pulled down with a 15kR resistor to ground in module. USIM DATA has been pulled up with a 22kR resistor to V_USIM in module. IIC_SDA and IIC_SCL have been pulled up with two 2.2kR resistors to 2.6V in module. So there is no need to pull them up or down in your application circuit. Contact us: Shanghai SIMCOM Wireless Solutions Ltd. Add: SIM Technology Building，No.633，Jinzhong Road，Changning District，Shanghai P.R. China 200335 Tel: +86 21 3235 3300 Fax: +86 21 3235 3301 URL: www.sim.com/wm

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