GPS LR9548SLP module Leadtek

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GPS LR9548SLP module Leadtek

20-channel, single chipset module GPS with high sensitivity WITH LOW POWER

The Leadtek LR9548SLP GPS module is a high sensitivity, low power, Serface Mount Device(SMD). This 20-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the GPS single search capabilities of the SiRFStarIII low power single chipset, SiRF´S newest chipset technology. The LR9548SLP is also pin-to-pin compatible with the LR 9805-III (LR 9548) for easier and faster transmition.

Code: GP-9548SLP
Availability: on request

Price: 22.57 EUR excl. VAT

FEATURES:

Based on the high performance features of the SiRFstarIII low power single chip set
Compact module size for easy integration: 24x20x 2.9 mm ( 0.94 x 0.79 x 0.1 1 in )
Fully automatic assembly: reflow solder assembly ready
Hardware compatible with SiRF GSW3 v 3. 2.2 software
Multiple I/O pins reserved for customizing special user applications
RoHS compliance
Cold/Warm/Hot Start Time: 4 2 /38/ 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
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)
Ideal for high volume mass production(Taping reel package)
Cost saving through elimination of RF and board to board digital connectors
Flexible and cost effective hardware design for different application needs
Secure SMD PCB mounting method

TECHNICAL SPECIFICATIONS:

Chipset SiRFstarIII low power single chipset (GSC 3f )
General Frequency L1, 1575.42 MHz (C/A code 1.023 MHz chip rate)
Channels 20
Sensitivity -159 dBm

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)
(Open Sky & Stationary Requirements) Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 1 sec., average typical TTFF
Warm start 38 sec., average typical TTFF
Cold start 42 sec., average typical TTFF

Dynamic Conditions

Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g , max.
Jerk 20 meters/second 3, max.

Power

Main power input 3.3 ~ 5.0 VDC input
Power consumption ≈165 mW (continuous mode)
Supply Current ≈49 mA
Backup Power 1.65 ~ 5.0 VDC input.

Serial Port

Electrical interface Two full duplex serial TTL interface.
Protocol messages NMEA-0183@4800 bps (Default)

Time-1PPS Pulse

Level TTL
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.
Measurement Aligned to GPS second, ? 1 microsecond

Environmental Characteristics

Operating temperature range -40 deg. C to +85 deg. C
Storage temperature range -55 deg. C to +100 deg. C

Physical Characteristics

Length 24 mm ? 0.1mm ( 0.94in)
Width 20 mm ? 0.1mm ( 0.79 in)
Height 2.9 mm ? 0.1mm ( 0.11 in)
Weight 2.5g

Interface Specifications

I/O 28pin SMD micro package

Software

Core of firmware SiRF GSW 3.2.2
Baud rate 4800, 9600, 19200, 38400 or 57600 bps (default 4800)
Code type NMEA-0183 ASCII
Datum WGS-84
Protocol message GGA(1sec), GSA(5sec), GSV(5sec), RMC(1sec),VTG(1sec)
Output frequency 1 Hz