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參數(shù)資料
| 型號： | CXD2951GA-2 |
| 廠商： | Sony Corporation |
| 英文描述： | Single Chip GPS LSI |
| 中文描述： | 單芯片LSI的全球定位系統(tǒng) |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 299K |
| 代理商： | CXD2951GA-2 |
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CXD2951GA-2
Performance
Baseband
Tracking sensitivity:
–152dBm (average) or less
Acquisition sensitivity: –139dBm (average) or less in Normal mode
–150dBm (average) or less in High sensitivity mode
Reference data using the Sony's reference board when using both an antenna of 0dBi and a RF amplifier
with NF
≤
2dB, 25dB gain.
TTFF (Time to First Fix):
Time until initial position measurement after power-on with the following conditions:
Cold Start (without both ephemeris and almanac time): 50s (average) / 60s (95% possibility)
Warm Start (without ephemeris but with almanac time): 35s (average) / 40s (95% possibility)
Hot Start (with both ephemeris and almanac time): 2s (minimum) / 6s (95% possibility)
Reference data with elevation angle of 5° or more and no interception environment with satellite powers
≥
–130dBm. (Not in High sensitivity mode)
Note)
"95% possibility" means "position time with 95% possibility".
Positioning accuracy:
2DRMS: approx. 5m
Reference data with elevation angle of 5° or more and no interception environment with satellite powers
≥
–130dBm.
Measurement data update time: 1s
Power consumption:
50mW (average) while position calculating with tracking satellites in low power mode
120mW (average) while position calculating with acquiring and tracking satellites
Reference data using the Sony's reference board when the reference clock input is 18.414MHz, and its
amplitude is 3.3V swing.
1PPS output
1μs or less precision, 1PPS outputs from ECLKOUT (Pin 97).
Note)
These values are not guaranteed, depending on the conditions.
Radio
Total Gain (typ.):
100dB
Noise figure (typ.):
8dB
Synthesizer phase noise (typ.):
–70dBc/Hz (10kHz)
–80dBc/Hz (100kHz)
PLL spurious (typ.):
–45dBc (inside fosc ±1.023MHz)
–55dBc (outside fosc ±1.023MHz)
Note)
These values are not guaranteed.
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