SIMCom SIM28

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SIM28

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SIMCom SIM28
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Product description

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.

Technical specifications

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     

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

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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