CXD2931R
Performance
• 16-channel GPS receiver
• High performance 32-bit RISC CPU
• Reception frequency
1575.42MHz (L1 band, CA code)
• Reception sensitivity (using the CXA1951AQ in the RF block)
–130dBm or less
• Time to first fix∗ (time until initial measurement after power-on)
Cold Start (without ephemeris and almanac) 35 to 60s
Warm Start (without ephemeris with almanac) 33 to 50s
Hot Start (with ephemeris and almanac)
6 to 20s
Reacquisition Time (interrupt recovery time) Less than 5 minutes: < 3 to 6s
5 minutes or more: < 6 to 10s
• Positioning accuracy
Stand alone (GPS unit only)
D-GPS (differential GPS)
1σ: < 30m
3σ: < 90m
1σ: < 6m
3σ: < 18m
• Measurement data update time Every 1s
• Communication method
Sony standard serial communication
Supports NMEA-0183
• All-in-view measurement
• 2-satellite measurement
• High performance 32-bit RISC CPU
∗ The noted values may be exceeded depending on the operating environment and other conditions.
Antenna
CXA1951AQ
RF Converter
0V
0V
TCXO
IF
CXD2931R
16ch GPS Processor
TXD
RXD
GPS receiver system diagram using the CXD2931R
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