Holux GR-88 User manual

GPS

Productseries With HOLUX, You never lose the way!

HOLUX Technology, Inc.

1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)

TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw http:www.holux.com.tw

GR-88 GPS Receiver Module

Main Features

zSiRF GSC3f chipset with embedded ARM7TDMI CPU available for

customized applications in firmware.

z20-Channel GPS Receiver for fast acquisition and reacquisition.

zVery compact size, only 20 * 24 * 2.8 mm.

z200,000 effective correlators for fast Time To First Fix (TTFF), even at

poor satellite signal.

zBuilt-in WAAS/EGNOS Demodulator.

zLow power consumption with Advanced Trickle-Power and

Push-To-Fix mode.

zSupport NMEA-0183 v2.2 data protocol and SiRF binary code.

zReal time navigation for location based services.

zFor Car Navigation, Marine Navigation, Fleet Management, AVL and

Location-Based Services, Auto Pilot, Personal Navigation or touring

devices, Tracking devices/systems and Mapping devices application.

Specifications

zAcquisition at low signal levels:

zCold/Warm/Hot start: 42/38/1 sec. (average)

zPosition Accuracy:

zAutonomous: <10 meters at 2DRMS.

zSBAS: <7 meters at 2DRMS, WAAS corrected.

zDGPS: 1-5 meters at DGPS corrected.

zReceiver:

zTracking : L1/CA code

zChannel : 20

zMax. Update rate: 1 HZ

GPS

Productseries With HOLUX, You never lose the way!

HOLUX Technology, Inc.

1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)

TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw http:www.holux.com.tw

zTime Mark: Output 1 pulse/sec, aligned with GPS time ±0.1 usec

zMax. Altitude/Velocity : < 60,000 ft / < 1,000 knots.

zProtocol Support : NMEA-0183, SiRF Binary, AI3/F

zDatum: WGS-84 (default), selectable for other Datum.

zProcessing Core

z200,000+ effective correlators for fast TTFF and high sensitivity

acquisition.

zProcessor Type: ARM7TDMI

zProcessor Speeds 50 MHZ

zIntegrated program Flash 4Mbit

zMinimum tracking signal levels: -159 dBm.

zInterface : CMOS 3V

zDimension: 20 x 24 x 2.8 mm

zWeight: 2 g

zOperating Temperature : -20 to +70

zStorage Temperature: -40 to +85

zOperating Humidity: 5% to 95%, No Condensing

zPower : input voltage 3.3V ~ 5.5VDC

zOperational current: less than 65 mA (without antenna)

Module snapshot and pin out definition.

GPS

Productseries With HOLUX, You never lose the way!

HOLUX Technology, Inc.

1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)

TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw http:www.holux.com.tw

Outline Drawing

0.80[0.031]

0.00[0.000] 0.2[0.008]

2.00[0.079]

4.09[0.161]

5.36[0.211]

6.63[0.261]

7.90[0.311]

9.17[0.361]

10.44[0.411]

11.71[0.461]

12.98[0.511]

14.25[0.561]

15.52[0.611]

16.79[0.661]

18.06[0.711]

19.33[0.761]

20.60[0.811]

24.00[0.945]

23.80[0.937]

3.40[0.134]

4.67[0.184]

5.94[0.234]

7.21[0.284]

8.48[0.334]

9.75[0.384]

11.02[0.334]

12.29[0.484]

13.56[0.534]

14.83[0.584]

16.10[0.634]

17.37[0.684]

18.64[0.734]

19.91[0.784]

22.00[0.866]

24.00[0.945]

0.30[0.012]

0.00[0.000]

16.50[0.650]

14.00[0.551]

6.00[0.236]

3.50[0.138]

19.70[0.776]

20.00[0.787]

Recommend PCB layout

GPS

Productseries With HOLUX, You never lose the way!

HOLUX Technology, Inc.

1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)

TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw http:www.holux.com.tw

Pin assignment

Pin Pin Name Type Function description

1 FREQ_XFER I Connect to GSC3 ECLK

2 NC NC

3 NC NC

4 RXDB I Serial Data input B

5 RXDA I Serial Data input A

6 TXDA O Serial Data Output A

7 GPIO4 I/O General purpose I/O. Keep floating if not used.

8 GPIO9 I/O General purpose I/O, TIME_MARK 1 PPS output, 1us/sec

9 NC NC

10 GPIO13 I/O General purpose I/O. Keep floating if not used.

11 GPIO0 I/O General purpose I/O. Keep floating if not used.

12 GPIO1 I/O General purpose I/O. Keep floating if not used.

13 GPIO14 I/O General purpose I/O, LED ON/OFF, flash when position fixed.

14 GND PWR Ground

15 VCC_IN PWR 3.3 ~ 5 V supply input

16 DV15 PWR Apply 1.5V DC for RTC and SRAM. Keep floating if not used.

17 BOOT_SEL I Pull high for firmware download mode. Keep floating if not used.

18 NRESET I Reset, active low. Keep floating if not used.

19 GPIO15 I/O General purpose I/O. Keep floating if not used.

20 GND PWR Ground

21 NC NC

22 NC NC

23 TXDB O Serial Data input B

24 NC NC

25 ANTPWR* PWR NC, 2.85V is supplied internally to active antenna

26 GND PWR Ground

27 RFIN I RF signal input

28 GND PWR Ground

*ANTPWR is NC in GR-88-A. ANTPWR must supply 2.85V ~ 5V in GR-88-B.

GPS

Productseries With HOLUX, You never lose the way!

HOLUX Technology, Inc.

1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)

TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw http:www.holux.com.tw

Ordering Information

Model No. RF interface output voltage (V)

GR-88-A RF antenna power 2.8 VDC from GR-88

GR-88-B RF antenna power supply from ANTPWR

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