hardware design v1.00
Table Of Contents
- Contents
- Version History
- 1 Introduction
- 2 SIM968 Overview
- 3 Package Information
- 4 GSM Application Interface
- 4.1 GSM Power Supply
- 4.2 Power on/down Scenarios
- 4.3 Power Saving Mode
- 4.4 Charging Interface
- 4.5 RTC Backup
- 4.6 Serial Interfaces
- 4.7 Audio Interfaces
- 4.8 SIM Card Interface
- 4.9 LCD Display/SPI Interface
- 4.10 Keypad Interface
- 4.11 ADC
- 4.12 RI Behaviors
- 4.13 Network Status Indication
- 4.14 General Purpose Input/Output (GPIO)
- 4.15 External Reset
- 4.16 PWM
- 4.17 I2C Bus
- 4.18 GSM Antenna Interface
- 5 GNSS Application Interface
- 6 Electrical, Reliability and Radio Characteristics
- 6.1 Absolute Maximum Ratings
- 6.2 Recommended Operating Conditions
- 6.3 Digital Interface Characteristics
- 6.4 SIM Card Interface Characteristics
- 6.5 VDD_EXT Characteristics
- 6.6 SIM_VDD Characteristics
- 6.7 VRTC Characteristics
- 6.8 Current Consumption (VBAT = 3.8V)
- 6.9 Electro-Static Discharge
- 6.10 Radio Characteristics
- 6.11 Module label information
- Appendix
Smart Machine Smart Decision
SIM968_Hardware Design_V1.00 2013.02.25
9
2.1 SIM968 Key Features
Table 1: SIM968 GSM/GPRS engine key features
Feature Implementation
Power supply 3.2V ~ 4.8V
Power saving
Typical power consumption in sleep mode is 1.2mA ( BS-PA-MFRMS=9, GNSS
engine is powered down )
Charging Supports charging control for Li-Ion battery
Frequency bands
z SIM968 Quad-band: GSM 850, EGSM 900, DCS 1800, PCS 1900. SIM968
can search the 4 frequency bands automatically. The frequency bands also
can be set by AT command “AT+CBAND”. For details, please refer to
document [1].
z Compliant to GSM Phase 2/2+
Transmitting power
z Class 4 (2W) at GSM 850 and EGSM 900
z Class 1 (1W) at DCS 1800 and PCS 1900
GPRS connectivity
z GPRS multi-slot class 10（default）
z GPRS multi-slot class 8 (option)
Temperature range
z Normal operation: -30℃ ~ +80℃
z Restricted operation: -40℃~ -30℃ and +80℃ ~ +85℃
z Storage temperature -45℃~ +90℃
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 Integrate the TCP/IP protocol.
z Support Packet Broadcast Control Channel (PBCCH)
CSD
z Support CSD transmission
USSD
z Unstructured Supplementary Services Data (USSD) support
SMS
z MT, MO, CB, Text and PDU mode
z SMS storage: SIM card
FAX Group 3 Class 1
SIM interface Support SIM card: 1.8V, 3V
External antenna 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 Adaptive multi rate (AMR)
z Echo Cancellation
z Noise Suppression
Serial port and
debug port
Serial port:
z Full modem interface with status and control lines, unbalanced,
asynchronous.