Holux GR-88 Manual de usuario
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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1
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