GPS Module GPS Engine Board GPS模塊 LR9123

Features

Hardware and Software
-Based on the high performance features of the SiRFstarIII/LPx single chipset
-Compact module size for easy integration: 36x24x10.5mm (1.417x0.945x0.413)
-20 channels All-in-View tracking
-Hardware compatible with SiRF GSW software
-RoHS compliance

Physical Characteristics
-Length 36 mm (1.417 in)
-Width 24 mm (0.945 in)
-Height 10.50 mm (0.413 in)
-Weight 7g
-Antenna connector MMCX type
-Interface connector 20-pin straight header, 0.8mm pitch board-to-board

Performance
-Cold/Warm/Hot Start Time: 35/35/1 sec. at open sky and stationary environments.
-Reacquisition Time: 0.1 second
-RF Metal Shield for best performance in noisy environments
-Multi-path Mitigation Hardware

Interface
-TTL level serial port for GPS communications interface
-Protocol: NMEA-0183/SiRF Binary (default NMEA)
-Baud Rate: 4800, 9600, 19200, 38400 or 57600 bps (default 4800)

Applications
-Car Navigation
-Marine Navigation
-Fleet Management
-AVL and Location-Based Services
-Hand-Held Device for Personal Positioning and Navigation
-Ideal for PDA

GPS Module Technical Specifications

Feature	Item	Description
Chipset	GSC3f	SiRFstarIII Low power single chipset
General	Frequency	L1, 1575.42 MHz
	C/A code	1.023 MHz chip rate
	Channels	20
Accuracy	Position	10 meters, 2D RMS
		5 meters 2D RMS, WAAS corrected
		<5meters (50%)
	Velocity	0.1 meters/second
	Time	1 microsecond synchronized to GPS time
Datum	Default	WGS-84
	Other	selectable for other Datum
Time to First Fix (TTFF)	Reacquisition	0.1 sec., average
(Open Sky &	Snap start	1 sec., average
Stationary	Hot start	1 sec., average typical TTFF
Requirements)	Warm start Cold start	35 sec., average typical TTFF 35 sec., average typical TTFF
Dynamic	Altitude	18,000 meters (60,000 feet) max.
Conditions	Velocity	515 meters/second (1000 knots) max.
	Acceleration	4g, max.
	Jerk	20 meters/second3, max.
Power	Main power input	3.3 ~ 5.0 VDC
	Power consumption	86mW
	Supply Current Backup Power	26mA 1.5 ~ 5.0 VDC input.
Serial Port	Electronics interface	Two full duplex serial TTL interface
	Protocol messages	NMEA-0183@4800 bps (Default)
Time-1PPS	Level	TTL
Pules	Pulse duration	The 1PPS pulse width is 1 μs, this 1PPS is NOT suited to steer various oscillators (timing receivers, telecommunications system, etc).
	Time reference	At the pulse positive edge.