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

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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
This 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
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SIM5215A _HD_V1.02 Hardware Design
Version history
Data
2010-4-26
Version
01.00
2010-07-19
01.01
2010-08-26
01.02
SIM5215A _HD_V1.02
Description of change
Origin
Add RESET timing and module is waked up by DTR
signal description, modify the description of PCM
interface
Add firmware update description
Author
libing
libing
26.08.2010
SIM5215A _HD_V1.02 Hardware Design
Contents
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
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3.18.1 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
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1 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
[1]
[3]
Document name
SIMCOM_SIM5215_A
TC_EN_V1.03
ITU-T
Draft
new
recommendationV.25ter
GSM 07.07:
[4]
[5]
GSM 07.10:
GSM 07.05:
[6]
GSM 11.14:
[7]
GSM 11.11:
[8]
GSM 03.38:
[9]
GSM 11.10
[10]
3GPP TS 51.010-1
[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
[14]
3GPP TS 34.123-3
Technical Specification Group Radio Access Network; Terminal
conformance specification; Radio transmission and reception
(FDD)
User Equipment (UE) conformance specification; Part 3:
Abstract Test Suites.
[2]
SIM5215A _HD_V1.02
Remark
SIMCOM_SIM5215_ATC_EN_V1.03
Serial asynchronous automatic dialing and control
Digital cellular telecommunications (Phase 2+); AT command
set for GSM Mobile Equipment (ME)
Support GSM 07.10 multiplexing protocol
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)
Digital cellular telecommunications system (Phase 2+);
Specification of the SIM Application Toolkit for the Subscriber
Identity Module – Mobile Equipment (SIM – ME) interface
Digital cellular telecommunications system (Phase 2+);
Specification of the Subscriber Identity Module – Mobile
Equipment (SIM – ME) interface
Digital cellular telecommunications system (Phase 2+);
Alphabets and language-specific information
Digital cellular telecommunications system (Phase 2)； Mobile
Station (MS) conformance specification； Part 1: Conformance
specification
Digital cellular telecommunications system (Release 5); Mobile
Station(MS) conformance specification
26.08.2010
SIM5215A _HD_V1.02 Hardware Design
[15]
EN 301 908-02 V3.2.1
[16]
EN 301 489-24 V1.4.1
[17]
IEC/EN60950-1(2006)
[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
[21]
SIM52xx_Audio_Appli
cation_Note_V1.01
SIM52xx_PCM_Applic
ation_Note_V1.02
SIM52xx_Waking_up_
Application_Note_V1.0
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)
SIM52xx_Audio_Application_Note_V1.01
[22]
[23]
Electromagnetic compatibility and Radio spectrum Matters (ERM
Stations (BS) and User Equipment (UE) for IMT-2000 Third Gene
cellular networks; Part 2: Harmonized EN for IMT-2000, CDMA D
Spread (UTRA FDD) (UE) covering essential requirements of arti
of the R&TTE Directive
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
Safety of information technology equipment (2000)
SIM52xx_PCM_Application_Note_V1.02
SIM52xx_Waking_up_Application_Note_V1.03
1.2 Terms and abbreviations
Table 2: Terms and abbreviations
Abbreviation
ADC
ARP
BER
BTS
CS
CSD
CTS
DAC
DRX
DSP
DTE
DTR
Description
Analog-to-Digital Converter
Antenna Reference Point
Bit Error Rate
Base Transceiver Station
Coding Scheme
Circuit Switched Data
Clear to Send
Digital-to-Analog Converter
Discontinuous Reception
Digital Signal Processor
Data Terminal Equipment (typically computer, terminal, printer)
Data Terminal Ready
DTX
Discontinuous Transmission
EFR
Enhanced Full Rate
EGSM
Enhanced GSM
EMC
Electromagnetic Compatibility
ESD
Electrostatic Discharge
ETS
European Telecommunication Standard
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FCC
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
IMEI
Inter-Integrated Circuit
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
TDMA
serial peripheral interface
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
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VOHmax
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
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2 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.
Serial port and USB 2.0 port can be alternatively used as data port.
USIM interface: support SIM cards: 3V & 1.8V
Power on/off and reset signal
Backup RTC interface.
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.
Three audio channels include two microphones inputs and three audio outputs. This can
be easily configured by AT command.
A camera interface is provided,(if above pins are not used as camera interface ,it could
be configured as GPIOs..
An I2C interface is provided.
An ADC interface
A LDO power output
A 4 bit SD card interface
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
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SIM5215A _HD_V1.02 Hardware Design
USB 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
Power supply
Power saving
Frequency bands
Transmit power
GPRS/EDGE
connectivity
Temperature range
DATA GPRS:
DATA EDGE
SIM5215A _HD_V1.02
Implementation
Single supply voltage 3.4V – 4.2V
Please refer to Table 39
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.
●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
z GPRS/EDGE multi-slot is up to class 12
z GPRS mobile station class B
z Operating Temperature: -30°C to +80°C
z Storage temperature -40°C to +85°C
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
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
11
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DATA UMTS
SMS
BEP reporting and test mode B
8-bit, 11-bit RACH
PBCCH support
phase/2 phase access procedures
R99
MT, MO, CB, Text and PDU mode
SMS storage: SIM card
Support transmission of SMS alternatively over CSD or GPRS.
User can choose preferred mode.
SIM interface
External antenna
Support SIM card: 1.8V ,3V
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
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.
Support phonebook types: SM, FD, LD, RC, ON, MC.
Serial interface
Phonebook
management
SIM Application
Toolkit
Real time clock
Timer function
Physical characteristics
Firmware upgrade
PCM
Support SAT class 3, GSM 11.14 Release 98
Support USAT
Implemented
Programmable via at command
Size: 36 mm ×26mm ×4.5 mm
Weight: 7g
Firmware upgrade over USB interface
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
CS-1:
CS-2:
CS-3:
CS-4:
MCS-1
MCS-2
MCS-3MCS-4
MCS-5
SIM5215A _HD_V1.02
1 Timeslot
9.05kbps
13.4kbps
15.6kbps
21.4kbps
8.80kbps
11.2kbps
14.8kbps
17.6kbps
22.4kbps
2 Timeslot
18.1kbps
26.8kbps
31.2kbps
42.8kbps
17.60kbps
22.4kbps
29.6kbps
35.2kbps
44.8kbps
12
4 Timeslot
36.2kbps
53.6kbps
62.4kbps
85.6kbps
35.20kbps
44.8kbps
59.2kbps
70.4kbps
89.6kbps
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MCS-6
MCS-7
MCS-8
MCS-9
29.6kbps
44.8kbps
54.4kbps
59.2kbps
59.2kbps
89.6kbps
108.8kbps
118.4kbps
118.4kbps
179.2kbps
217.6kbps
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
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SIM5215A _HD_V1.02 Hardware Design
Figure 2：SIM5215A block diagram
3.1 SIM5215A pin description
Table 5：Board-to-Board Connector pin description
Power Supply
PIN NAME
VBAT
I/O
VRTC
GND
Power on or power off
PIN NAME
POWER_ON
SIM5215A _HD_V1.02
I/O
DESCRIPTION
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
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.
Digital ground
DC CHARACTERISTICS
Vmax= 4.2V
Vmin=3.4V
Vnorm=3.8V
DESCRIPTION
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
DC CHARACTERISTICS
VILmax=0.2*VBAT
VIHmin=0.6*VBAT
VImax=VBAT
14
Vmax=3.2V
Vnorm=3.0V
Vmin=1.5V
Inorm= 1.1uA
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SIM5215A _HD_V1.02 Hardware Design
VBAT 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
MIC_P
MIC_N
I/O
HP_MICP
EAR_P
EAR_N
HPR
HPL
SPK_P
SPK_N
HKADC
VREG_AUX
DESCRIPTION
Positive and negative voice-band
input If not in use, connect to ground
through a 100N capacitor.
Auxiliary positive voice-band input,
if not in use, connect to ground
through a 100N capacitor.
Positive and negative voice-band
output, if not in use ,left open
Auxiliary right channel and left
channel voice-band output, if not in
use, left open.
Loud Speaker Output, if not in
use ,left open
Analog Digital Converter Input
LDO power output
USB
PIN NAME
USB_VBUS
I/O
DESCRIPTION
USB power supply input, if not in
use, left open.
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.
Serial interface
PIN NAME
UART_DTR
I/O
DESCRIPTION
Data Terminal Ready, if not in use,
left open.
UART_RXD
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.
SIM5215A _HD_V1.02
DC CHARACTERISTICS
Audio DC Characteristics
refer to chapter 3.8.4
15
This LDO default output
voltage is 2.85V, and
driver current is rated for
250mA.
DC CHARACTERISTICS
Vmax =5.25 V
Vmin =4.4 V
Vnorm = 5.0 V
They are compliant with
the USB 2.0 specification.
DC CHARACTERISTICS
VILmin=0V
VILmax=0.3*VDD_EXT*
VIHmin=0.7*VDD_EXT
VIHmax=VDD_EXT+0.3
VOLmin=GND
VOLmax=0.2V
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UART_TXD
Transmit Data, if not in use, left open.
UART_RTS
Request to Send, if not in use, left
open.
UART_CTS
Clear to Send, if not in use, left open.
UART_RI
Ring Indicator, if not in use, left
open.
UART_DCD
Data Carrier detection, if not in use,
left open.
Camera interface
PIN NAME
CAM_D2
I/O
CAM_D3
CAM_D4
CAM_D5
CAM_D6
CAM_D7
CAM_D8
CAM_D9
CAM_HSYNC
CAM_VSYNC
CAM_CLK
CAM_PCLK
CAM_RESET
CAM_STANDBY
DESCRIPTION
Bit 2 of RGB or YUV D0 video
component input
Bit 3 of RGB or YUV D1 video
component input
Bit 4 of RGB or YUV D2 video
component input
Bit 5 of RGB or YUV D3 video
component input
Bit 6 of RGB or YUV D4 video
component input
Bit 7 of RGB or YUV D5 video
component input
Bit 8 of RGB or YUV D6 video
component input
Bit 9 of RGB or YUV D7 video
component input
Video horizontal line synchronization
signal input
Vertical sync input
master clock output
Pixel clock input
Master reset out, active low
USIM interface
PIN NAME
V_USIM
I/O
DESCRIPTION
Voltage Supply for SIM card
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
SIM Clock
SIM5215A _HD_V1.02
DC CHARACTERISTICS
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.
Power-down mode selection
“0”=Normal mode, “1”=Power-down
mode
16
DC CHARACTERISTICS
The voltage can be
selected by software to be
either 1.8V or 3V
VILmin=0V
VILmax=0.3*V_USIM
VIHmin=0.7* V_USIM
VIHmax=V_USIM +0.3
VOLmin=GND
VOLmax=0.2V
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USIM_RESET
SIM Reset
IIC interface
PIN NAME
IIC_SDA
I/O
I/O
DC CHARACTERISTICS
IIC_SCL
DESCRIPTION
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.
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
Reset
I/O
DESCRIPTION
System reset in, active low.
GPIO0/PCM_DIN
GPIO1
General Input PIN with interrupt. If
not in use, left open. It also can be
multiplexed as the PCM_DIN pin.
Status Indicating LED Control.
GPIO2/PCM_SYNC
DC CHARACTERISTICS
Reset pin has been pulled
up in SIM5215A. Detail
description refer to chapter
3.12.
VIHmin=0.7*VDD_EXT*
VIHmax= VDD_EXT+0.3
VOLmin=GND
VOLmax=0.2V
VOHmin= VDD_EXT-0.2
VOHmax= VDD_EXT
GPIO3/PCM_CLK
General Input PIN. If not in use, left
open. It also can be multiplexed as
the PCM_SYNC pin.
General Output PIN. If not in use, left
open. It also can be multiplexed as
the PCM_CLK pin.
GPIO4
RF Control: Flight Modem switch
GPIO5/PCM_DOUT
General Output PIN. If not in use, left
open. It also can be multiplexed as
the PCM_DOUT pin.
*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
Normal operation
Function
Module Power
Off mode
SIM5215A _HD_V1.02
Module will go to Power off mode when the Power on pin has
been pushed low for 2 Seconds.
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Module sleep
GSM mode
GSM IDLE
GSM TALK
GPRS mode
GPRS IDLE
GPRS DATA
EDGE mode
EDGE IDLE
EDGE mode
EDGE DATA
WCDMA mode
WCDMA
IDLE
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.
Software is active. Module has registered to the GSM network,
and the module is ready to send and receive.
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.
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).
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).
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
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.
Module has registered to the WCDMA network, and the
module is ready to send and receive.
WCDMA talk
POWER DOWN
Module is active in WCDMA mode. The power consumption
depends on network settings.
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.
Use of the “AT+CFUN” command can set the module to a minimum
Minimum
functionality mode
functionality mode without remove the power supply. In this case, disable phone
(flight mode)
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
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ESR) 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.
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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
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Note1: 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+CPOF”.
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3.4.2.3 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 =0，1，4
0: minimum functionality, (same as CFUN=4,disable both transmit and receive RF circuits
of the phone);
1: full functionality (Default);
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
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on 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
GPIO4 Status
Module Action
Low Level
Flight Mode: RF is closed.
High Level
Normal Mode: RF is working.
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.
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3.5.4 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.
the VRTC, You may connect the VRTC pin to a battery or a capacitor.
If you need to use
The following figures show various sample circuits for RTC backup.
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Figure 8: RTC supply from non-chargeable battery
Figure 9: RTC supply from rechargeable battery
Figure 10: RTC supply from capacitor
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.
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Typical charge curves for each cell type are shown in following figures.
rechargeable Lithium type coin cells are generally pre-charged from the vendor.
Note that the
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).
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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
0.3*VDD_EXT
Logic high input
0.7 *VDD_EXT
VDD_EXT +0.3
Logic low output
GND
0.2
Logic high output
VDD_EXT -0.2
VDD_EXT
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.
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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.
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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
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Audio channel
Pin name
MIC_P
Pin No
43
Function
MIC anode input
NORMAL
( default )
MIC_N
44
MIC cathode input
EAR_P
25
Receiver output anode
EAR_N
HP_MICP
26
42
Receiver output cathode
Headset MIC anode input
HPR
27
Headset right speaker
HPL
MIC_P
28
43
Headset left speaker
MIC anode input
MIC_N
44
MIC cathode input
SPK_P
23
Loudspeaker anode
SPK_N
24
Loudspeaker cathode
HEADSET
Hand free
It 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).
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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.
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3.8.3 Earphone interface configuration
Figure 18: Earphone interface configuration
3.8.4 Referenced electronic characteristic
Table 10: MIC Input Characteristics
Parameter
Working Voltage
Working Current
External
Microphone
Load Resistance
Min
1.2
70
Typ
1.60
1.2
2.2
Max
2.2
400
Unit
uA
k Ohms
Table 11: Audio Output Characteristics
Parameter
Normal
Output(EAR_P,
EAR_N)
Auxiliary
Output(HPR,H
PL)
Differential
load
Resistance
Min
Typ
27
32
Ohm
70
mW
Output
power
Max
Unit
Single
Ended
load
Resistance
12
16
Ohm
Differential
load
Resistance
27
32
Ohm
Single
Ended
Output
power
21.6
mW
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Table 12: Speaker Output Characteristics
Parameter
Quiescent
Current
Output
power(1KHz)
Min
Typ
Max
Unit
6.2
mA
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
well as AT+CLVL,AT+CVLVL, AT+VMUTE, AT+MICMUT, AT+CSDVC, and AT+CPTONE.
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 ADC
0…1
0…24dB
2 steps
AT+CMICAMP1
txVol
Digital gain of input signal
after ADC
0,
1...65535
Mute,
-84...+12
dB
20 * log
(txVol/
16384)
AT+CTXVOL
txGain
Digital gain of input signal
after summation of
sidetone
0,
1...65535
Mute,
-84...+12
dB
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...+12
dB
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…300d
bm
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
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parameters, 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 ,  , , ,,
 , and  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=
Name
Handset
Headset
Speaker phone
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Purpose
Default for DSB with
Votronic handset
Mono Headset
handheld speaker-phone
TX-Filters
Adjustable
Adjustable
Adjustable
RX-Filters
Adjustable
adjusted to fit artificial
ear type 3.2 low leakage
Adjustable
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
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
stGain
2304
1024
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
Default
MIC path
Parameters
Default
Output
path
Parameters
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3.8.5.4 Adjust the sound level by AT+CVLVL
There are two adjustable amplifiers on audio signal output path: , . Four AT
commands are provided for tune them..
: AT+CLVL, AT+CVLVL,AT+CRXVOL
: AT+CRXGAIN
AT+CRXVOL is used for fine tuning for . AT+CLVL and AT+CVLVL are used for
coarse tuning for . 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
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Pin
57
Signal
V_USIM
56
USIM_DATA
12
13
USIM_CLK
USIM_RESET
Description
USIM Card Power output depends automatically on USIM mode，
one is 3.0V±10%, another is 1.8V±10%. Current is about 10mA.
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.
USIM Card Clock
USIM Card Reset
Table 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.
in the following figure.
The reference circuit about 6 pins USIM card illustrates as
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.
http://www.amphenol.com for more information about the holder.
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Figure 21:
Amphenol C707 10M006 512 2 SIM card holder
Table 17: Pin description (Amphenol SIM card holder)
Pin
Signal
C1
USIM_VDD
C2
C3
C5
C6
C7
USIM_RST
USIM_CLK
GND
VPP
USIM_DATA
Description
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.
SIM Card Reset.
SIM Card Clock.
Connect to GND.
Connect to USIM_VDD
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
Pin
Name
Function
Lever
47
IIC_SDA
Serial interface data input and output
46
IIC_SCL
Serial interface clock input
*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.
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3.11 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
Name
PIN( B to B)
USB_VBUS
USB_DP
USB_DM
GND
60
59
58
Input voltage scope( V )
Type
Max
5.0
5.25
Min
4.4
They are compliant with the USB 2.0 specification.
VBUS
VBUS
D+
D+
D-
D-
GND
GND
Figure 22:
Series
A , B
or
Mini-B
Receptacle
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.
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3.12 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：50ms400kHz
300
50
10
Average supply
current
POWER DOWN mode
35
Peak supply
current (during
transmission
slot every 4.7ms)
Power control level for Pout
max.
1.7
mV
mV
uA
5.4 Current consumption
The values for current consumption in Vbat 3.8V are listed in Table 39.
means that SIM5215A is connected with USB BUS but don’t transfer data.
Here, “suspended”
Table 339: SIM5215A current consumption
GSM IDLE mode (without USB suspend)
GSM850
GSM900
DCS1800
PCS1900
GSM IDLE Mode(with USB suspend)
GSM850
GSM900
DCS1800
SIM5215A _HD_V1.02
61
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
3.0mA
1.8mA
1.4mA
3.0mA
1.86mA
1.4mA
3.1mA
1.7mA
1.4mA
3.1mA
1.6mA
1.5mA
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
4.3mA
2.8mA
2.2mA
4.3mA
2.7mA
2.1mA
4.4mA
2.8mA
2.3mA
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PCS1900
Sleep @DRX=2
Sleep @DRX=5
Sleep @DRX=9
Voice Call
GSM850
GSM 900
DCS1800
PCS1900
GPRS Data
DATA mode, GPRS ( 1 Rx,4 Tx ) CLASS 12
GSM 850
GSM 900
DCS1800
PCS1900
DATA mode, GPRS ( 3Rx, 2 Tx ) CLASS 12
GSM 850
GSM 900
DCS1800
PCS1900
EDGE Data
DATA mode, EDGE( 1 Rx,4 Tx ) CLASS 12
GSM 850
GSM 900
DCS1800
PCS1900
DATA mode, EDGE( 3Rx, 2 Tx ) CLASS 12
GSM 850
GSM 900
DCS1800
PCS1900
UMTS IDLE Mode (without USB suspend)
WCDMA 1900
@power level #5 <300mA,Typical 270mA
@power level #5 <310mA,Typical 270mA
@power level #0 <220mA,Typical 210mA
@power level #0 <200mA,Typical 190mA
@power level #5 <540mA
@power level #5 <500mA
@power level #0 <380mA
@power level #0 <380mA
@power level #5 <390mA
@power level #5 <380mA
@power level #0 <300mA
@power level #0 <250mA
@power level #8 <350mA
@power level #8 <340mA
@power level #2 <325mA
@power level #2 <290mA
@power level #8 <250mA
@power level #8 <240mA
@power level #2 <230mA
@power level #2 <210mA
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
SIM5215A _HD_V1.02
4.4mA
2.7mA
2.2mA
@Power 23dBm Typical 510mA
@Power 10dBm Typical 195mA
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SIM5215A _HD_V1.02 Hardware Design
@Power-55dBm Typical 131mA
HSDPA Data（only 5216A）
WCDMA 1900
@Power 23dBm
@Power 10dBm
@Power-55dBm
@Power 23dBm
@Power 10dBm
@Power-55dBm
WCDMA 850
Typical 584mA
Typical 331mA
Typical 179mA
Typical 536mA
Typical 231mA
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
VBAT,GND
UART,USB
Antenna port
Other port
Contact discharge
±4KV
±4KV
±4KV
±3KV
Air discharge
±10KV
±8KV
±10KV
±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.
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There 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
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SIM5215A _HD_V1.02 Hardware Design
6 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.
dimensions of SIM5215A.
These show you Mechanical
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.
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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.
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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
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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.
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Figure 48: RF connector MM9329-2700
Figure 49: RF adapter cable MXTK88TK2000
For more information about the connector, please visit http://www.murata.com/
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6.5 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
usage
VBAT
Pin
No
Define
Measure
usage
VBAT
70
VBAT
VBAT
VBAT
VBAT
69
VBAT
VBAT
VBAT
VBAT
68
VBAT
VBAT
GND
GND
67
GND
GND
GND
GND
66
GND
GND
UART_TXD
NC
65
GPIO0
NC
UART_CTS
NC
64
UART_RXD
NC(See Note)
UART_DCD
NC
63
UART_RTS
NC
USB_VBUS
NC
62
UART_DTR
NC
10
11
GPIO1
VRTC
NC
NC
61
60
UART_RI
USB_D_P
NC
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
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70
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SIM5215A _HD_V1.02 Hardware Design
18
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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