General Description

The SkyNav SKG17 is a complete GPS engine 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.

It is based on the high performance features of the MediaTek MT3179+MT3301 chipset architecture, 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.

Features

n Ultra high sensitivity: -159dBm

n Extremely fast TTFF (Time To First Fix) at low signal level

n Low power consumption: Max 45mA@3.3V

n NMEA-0183 compliant protocol or custom protocol

n WAAS/EGNOS supported

n Operating voltage: 2.97V to 3. 63V

n Operating temperature range: -40 to 85℃

n SMD type with stamp holes

n Small form factor: 22.9 x 17 x 2.8mm

n RoHS compliant (Lead-free)

Performance Specification

Parameter	Specification
Receiver Type	L1 frequency band, C/A code, 32 Channels
Sensitivity	Tracking Acquisition	-159dBm -146dBm
Accuracy	Position Velocity Timing (PPS)	3.0m 2D RMS without SA 0.1m/s without SA 60ns RMS
Acquisition Time	Cold Start Warm Start Hot Start Re-Acquisition	36s 33s 1s <1s
Power Consumption	Tracking Acquisition Sleep/Standby	<35mA @3.3V 45mA @3.3V TBD
Navigation Data Update Rate	1Hz
Operational Limits	Altitude Velocity Acceleration	Max 18,000m Max 515m/s Less than 4g

Applications

n LBS (Location Based Service)

n PND (Portable Navigation Device)

n Vehicle navigation system

n Mobile phone