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Description:

GPS SiRf Module Engine Board DS-2525.DS-2525 low power and smallform factor board is the newest generation of GPS module.

Ding Sheng GPS SiRf Module GPS Engine Board DS-2525

1.        Introduction

DS-2525 low power and small form factor board is the newestgeneration of GPS module. The module is powered by latest SiRF StarIII single chip and DS-tech proprietary navigation technology thatprovides you with stable and accurate navigation data.

The smallest form factor and miniature design is the best choiceto be embedded in a device such as portable navigation device,personal locator, speed camera detector and vehicle locator.

 

Product Features

²          20parallel channels

²          SMT typewith stamp holes

²          TCXOdesign

²          0.1second reacquisition time

²          Smallform factor with embedded SiRF Star III single chip technology.

²         NMEA-0183 compliant protocol/customize protocol.

²          Enhancedalgorithm for navigation stability

²         Excellent sensitive for urban canyon and foliage environments.

²          DGPSBAS(WAAS, EGNOS and MSAS) support

²          Autorecovery while RTC crashes

²          Tricklepower supported

²          Build-inLNA and saw filter

 

 

 

1.1 Product Applications 

²         Automotive navigation

²          Personalpositioning and navigation

²          Marinenavigation

²          Timingapplication 

 

1.2 DS-2525 TechnicalSpecification

Impedance  50Ω

Table 1-2 TechnicalSpecifications

No	Function	Specification
GPS receiver
1	Chipset	SiRF Star III, GSC3f/LPx (Digital, RF in a single package)
2	Frequency	L1 1575.42MHz.
3	Code	C.A. Code.
4	Channels	20 parallel
5	Chip Sensitivity	-159dBm.
6	Chip Cold start	35 sec at open sky (Typical)
7	Chip Warm start	35 sec at open sky (Typical)
8	Chip Hot start	1 sec at open sky (Typical)
9	Reacquisition	less than 1s
10	Position accuracy	10meters at 2D RMS.
11	Maximum altitude	18000 m
12	Maximum velocity	514 m/s
13	Trickle power mode	Duty cycle ≤ 34%. (Variable)
14	Update rate	Continuous operation: 1Hz
15	DGPS	WAAS, EGNOS
Interface
16	LNA	15dB Gain. (Typical)
17	I/O Pin	30pin
Power consumption
18	Vcc	DC 3.3 ±5%
19	Current	Avg. 48mA at 3.3V ( without  ext. antenna)
Environment
20	Temperature	Operating : -40 ~ 85°C Storage :  -40 ~ 85°C
21	Humidity	≤95%