CXD2931GA-9 Просмотр технического описания (PDF) - Sony Semiconductor

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производитель

CXD2931GA-9

1 chip GPS LSI

Sony Semiconductor 

CXD2931R-9/GA-9

Performance

• 16-channel GPS receiver

• High performance 32-bit RISC CPU

• Receiver frequency: 1575.42MHz (L1 band, CA code)

• Reception sensitivity

Tracking sensitivity: –145dBm (typ.) when using the antenna of 25dBi, NF = 2dB and the RF amplifier

with the 25dB gain

∗ Reference data using the Sony's reference board.

This value is not guaranteed, depending on the conditions.

• Time to First Fix (time until initial measurement after power-on)

Cold Start (without both ephemeris and almanac): 27 to 58s

Warm Start (without ephemeris with almanac): 23 to 45s

Hot Start (with both ephemeris and almanac):

6 to 17s

∗ Reference data with elevation angle of 5° or more and no interception environment on Nov., 2001.

Positioning time with 90% possibility.

These values are not guaranteed, depending on the conditions.

• Positioning accuracy

2DRMS: approx. 12m

∗ Reference data with elevation angle of 5° or more and no interception environment.

This value is not guaranteed, depending on the conditions.

• Measurement data update time

1s

• Interfece format

NMEA0183 (4800bps)

• Communication method

Start-stop synchronization

• All-in-view

1575.42MHz

LNA

CXA1951AQ

RF Converter

18.414MHz

TCXO

IF

1.023MHz

CXD2931R-9

16ch GPS Processor

TXD

RXD

GPS receiver system block diagram using the CXD2931R-9

–2–

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