SIMCom presents a high performance and reliable assisted GPS module-SIM28. This is a standalone L1 frequency GPS module in a SMT type with MTK high sensitivity navigation engine, which allows you to achieve the industry’s highest levels of sensitivity, accuracy, and Time-to-First-Fix (TTFF) with lowest power consumption.
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Mechanical data
•Dimensions: 16*12.2*2.4mm
•Weight: 1g
Features
•Support EASY self-generated orbit prediction
•Support SBAS ranging (WAAS, EGNOS, GAGAN, MSAS)
•Support EPO orbit prediction
Interfaces
•Serial interfaces UART, SPI / I²C
•Digital I/O EINT0 input
GPIO
Pulse-per-second (PPS)
•Protocols
-NMEA
-PMTK
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Support product
•SIM28 EVB KIT with USB V2.0 full speed interface
Electrical data
•Power supply 2.9V~3.6V
•Backup power 3.0V（typical）
•Power consumption
- Acquisition: 23 mA
- Tracking: 17mA
- Always Locate 3 mW
•Antenna type Active and Passive
•Antenna power External or internal
VCC_RF
Certificate
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Performance data
•Receiver type 22 tracking/66 acquisition-channel GPS receiver
GPS L1, C/A Code
•Max. update rate 10Hz
•Sensitivity
Tracking:-165 dBm
Reacquisition: -160 dBm
Cold starts: -147 dBm
•Time-To-First-Fix
Cold starts with EASY:13 s
Warm starts with EASY: 1~2s
Cold starts: 33s
Cold starts with
EPO Assist:13 s
Hot starts: <1s
•Accuracy
Automatic Position: 2.5m CEP
EPO 30days DATA: 1.99m
Speed:0.1m/s
•Operation temperature:
-40℃~+85 ℃
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