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 Ct-G431R |
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The Ct-G431R GPS module is a high sensitivity, low power, Surface Mount Device (SMD) that
fully utilized SiRFstarIV upgrade features. This 48-channel global positioning system (GPS)
receiver is designed for a wide range of OEM applications and is based on the GPS signal
search capabilities of the SiRFstarIV GSD4e ROM chipset, SiRF’s newest chipset technology.
The Ct-G431R provides flexible bus interfaces (Optional: UART , I2C or SPI reserved for
customizing special user applications).
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| Feature |
Item |
Description |
| Chipset |
GSD4e |
SiRFstarIV low power single chipset |
| General |
Frequency |
L1, 1575.42 MHz |
| C/A code |
1.023 MHz chip rate |
| Channels |
48 |
| Sensitivity |
-163 dB |
| Accuracy |
Position |
＜2.5M |
| Velocity |
0.01 meters/second |
| Time |
1 microsecond synchronized to GPS time |
| Datum |
Default |
WGS-84 |
| Other |
selectable for other Datum |
Time to First Fix (TTFF)
(Open Sky
&
Stationary Requirements) |
Reacquisition |
0.1 sec., average |
| Snap start |
1 sec., average |
| Hot start |
1 ~ 2 sec. |
| Warm start |
9 ~ 15 sec. |
| Cold start |
25 ~ 35 sec. |
Dynamic Conditions |
Altitude |
18,000 meters (60,000 feet) max. |
| Velocity |
515 meters/second (1000 knots) max. |
| Acceleration |
4g, max. |
| Jerk |
20 meters/second3, max. |
| Power |
Main power input |
1.71 ~ 1.89 VDC input |
| Power Consumption |
Average 53mA (Tracking Mode) |
| Backup Power |
1.71~1.89 VDC input |
| Serial Port |
Electrical interface |
Default SPI |
| Protocol messages |
NMEA-0183@4800bps |
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