GPS receiver module Skylab SKG25B

GPS receiver module Skylab SKG25B

1.The Skylab SKG25B is a complete GPS module that features super sensitivity, ultra low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.

2.Its –159dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems.

3.Features
Ultra high sensitivity: -159dBm
Extremely fast TTFF at low signal level
Built in high gain LNA
Low power consumption: Max 45mA@3.3V
NMEA-0183 compliant protocol or custom protocol
Operating voltage: 3.0V to 3.6V
SMD type with stamp holes
Small form factor: 25x25x3.2mm
RoHS compliant (Lead-free)Performance Specification

4.Performance Specification
Receiver Type
-L1 frequency band, C/A code, 32-channels

Sensitivity
-Tracking -159dBm
-Acquisition -146dBm

Accuracy
-Position 3m CEP without SA
-Velocity 0.1m/s without SA
-Timing (PPS) 60ns RMS

Acquisition Time
-Cold Start 36s
-Warm Start 33s
-Hot Start 1s
-Re-Acquisition <1s

Power Consumption
-Tracking 45mA @3.3V Typical
-Acquisition 45mA
-Sleep/Standby TBD

Navigation Data Update Rate Operational Limits
-1Hz
-Altitude Max 18, 000m
-Velocity Max 515m/s
-Acceleration Less than 4g