SIM928A GSM / GPRS Module with Stand-alone GPS
SIM928A module is a complete Quad-Band GSM / GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will significantly save both time and cost a for customers to develop GPS enabled applications. Featuring an industry-standard interface and stand alone GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage.
General features
- Quad-Band 850/900/18001900MHz
- GPRS multi-slot class 10
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
- Class 4 (2 W @ 850/900 MHz)
- Class 1 (1 W @ 1800/1900MHz)
- Control via AT commands
- SIM application toolkit
- Supply voltage range:
- GPRS: 3.2 ~ 4.8 V
- GPS: 3.0 ~ 4.5V
- VCHG: 5V
- Low power consumption
- Dimensions: 30 x 30 x 3.2mm
- Weight: 5.3g
- Operation temperature: -40 °C to +85 °C
- Interfaces
- 80-pad with SMT type
- Interface to external SIM 3V/ 1.8V
- Dual analog audio interfaces
- SPI interface
- RTC backup
- Charge interface
- A serial interface and a debug interface for GSM/GPRS
- 2 x serial interface for GPS
- Two separate antenna connectors for GSM/GPRS&GPS
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Specifications for data transfer
- GPRS class 8/10: max. 85.6 kbps (downlink)
- PBCCH support
- Coding schemes CS 1, 2, 3, 4
- CSD up to 14.4 kbps
- USSD
- Non transparent mode
- PPP-stack
- Integrated TCP/IP stack
Specification for GPS
- Receiver type
- 33 tracing / 99 acquisition channels
- GPS L1 C/A code,
- High-performance STE engine
Sensitivity
- Tracking: -167 dBm
- Cold starts : -148 dBm
Time-To-First-Fix
- Cold starts: 28s (typ.)
- Hot starts:
Compatibility
- AT cellular command interface
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