Holux GR-89 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-89 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 25.4 * 25.4 * 3 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 49 MHZ
zIntegrated program Flash 4Mbit
zMinimum tracking signal levels: -159 dBm※
zInterface : CMOS 3V
zDimension: 25.4 x 25.4 x 3 mm
zWeight: 3 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)
※: According to SiRF GSC3 specification.
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
Module snapshot and pin out definition.
Picture
Mechanical dimension (unit mm)
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
Recommend PCB layout
Pin assignment
Pin Pin Name Type Function description
1 VCC_IN I 3.3 ~ 5 V supply input
2 GND G Ground
3 BOOT_SEL I Boot selection. Pull high this pin at power on stage for flash
programming.
4 RXDA I Serial Data input A
5 TXDA O Serial Data Output A
6 TXDB O Serial Data Output B
7 RXDB I Serial Data input B
8 GPIO14 I/O General purpose I/O. flash at 1Hz when position is fixed.
9 RF_ON O Indication for RF power supply. Flashes in trickle power mode.
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
10 GND G Ground
11 GND G Ground
12 GND G Ground
13 GND G Ground
14 GND G Ground
15 GND G Ground
16 GND G Ground
17 RF_IN I GPS signal input
18 GND I Ground
19 V_ANT_IN I Antenna power supply input
20 VCC_RF_O O Antenna power supply, 2.85V
21 V_BAT I RTC and backup SRAM power, 2.6 ~ 3.6 VDC.
22 nRESET I Reset, active low
23 GPIO10 I/O General purpose I/O
24 GPIO1 I/O General purpose I/O
25 GPIO2 I/O General purpose I/O
26 GPIO0 I/O General purpose I/O
27 GPIO13 I/O General purpose I/O
28 GPIO15 I/O General purpose I/O
29 PPS O 1 PPS output, synchronized with GPS time. TIME_MARK 1
PPS output, 1us/s
30 GND G Ground
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