达伽马 GPS导航设备-SR-96说明书.pdf-资料库

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GPS Engine Board Manual SR-96 Manual V1.1.1 SSSSR-96R-96R-96R-96 SiRF StarⅢⅢⅢⅢ V 1.1.1 Made in Taiwan 2008/08/08 service@dagamagps.com www.dagamagps.com Free service hot-line(for mainland):400-820-1322

SR-96 Manual V1.1.1 Specifications subject to change without prior notice! Contents 1. Introduction ............................................................................................. 2 1.1 Overview..............................................................................................2 1.2 Features.............................................................................................. 2 2. Technical Specifications ........................................................................ 2 2.1 Electrical Characteristics.................................................................. 2 2.2 Environmental Characteristics......................................................... 3 3. Interface Specification...........................................………….................... 4 3.1 I/O Pin Description …………………………………………………… ...4 3.2 PCB Layout ……………………..…………………………….………..... 6 Appendix: Software Specifications ………………..…………………………. 7 1 SR-96 User’s Manual V1.1.1

1. Introduction 1.1 Overview SR-96 Manual V1.1.1 SR-96 GPS module is a high performance receiver module for the Global Positioning System (GPS) solution providing latitude, longitude, height, time and velocity data. The smart type module has patch antenna, LNA (Low Noise amplifier) and saw filter. It has High performance and Low power consumption, extremely small size. The module design is base on low power consumption, high sensitivity SiRF StarⅢ chipset. It can be easily embedded into portable devices for GPS wireless communication. 1.2 Features ☼ Full self-contained GPS receiver ☼ Fully shielded design ☼ Full implementation of SiRF StarⅢ GPS architecture ☼ GSC3F/LP(High Performance GPS Single Chip) ☼ GPS DSP with integrated real time clock (RTC) ARM7TDMI CPU ☼ 4Mbit FLASH memory ☼ Low noise amplifier ☼ SAW filter ☼ TCXO GPS receiver in a micro-component package ☼ Fully automatic assembly: Reflow solderable ☼ No RF connector ☼ Size: 13.1mm X 15.9mm X 2.7mm ☼ Weight: 1.1 grams Ordering information: SR-96-J GPS module with supply regulator enable, supply voltage 3.0~4.2V SR-96-S GPS module without regulator, supply voltage 3.0~3.5V 2. Technical Specifications 2.1. Electrical Characteristics 2.1.1 General Frequency C/A code Channels 2.1.2 Sensitivity L1, 1575.42 MHz 1.023 MHz chip rate 20 channels all in view tracking 2 SR-96 User’s Manual V1.1.1

SR-96 Manual V1.1.1 Tracking -159 dBm typical 2.1.3 Accuracy (Open Sky) Position Time 2.1.4 Datum Default < 10 meters, 2D RMS < 7 meters 2D RMS, WAAS corrected 1-5 meters, DGPS corrected 1 microsecond synchronized to GPS time WGS-84 2.1.5 Acquisition Rate (Open Sky) Hot start Warm start Cold start Reacquisition 1 sec, average 38 sec, average 42 sec, average 0.1 sec, average 2.1.6 Dynamic Conditions Altitude Velocity Acceleration Jerk 2.1.7 Power Main power input Supply Current 2.1.8 Serial Port Electrical interface Protocol support Default NMEA 2.1.9 Time < 18,000 meters (60,000 feet) < 515 meters/sec (1000 knots) < 4 G 20 meters/sec max 3.0 ~ 4.2 VDC input for SR-96J 3.0 ~ 3.5 VDC input for SR-96S 50~55mA TTL level NMEA-0183, SiRF Binary GGA, GSA, GSV, RMC, (GLL, VTG, and ZDA optional) 4800 baud rate (other rate optional) 8 bits data, 1 stop bit, no parity. 1 PPS Pulse, pulse duration 1µs. Time reference at the pulse positive edge. Synchronized to GPS time, ±1µs. 2.2. Environmental Characteristics Operating temperature range Storage temperature range -40 oC to +85 oC -45 oC to +100 oC 3 SR-96 User’s Manual V1.1.1

3. Interface Specification 3.1 I/O Pin Description for SR-96J SR-96 Manual V1.1.1 Pin Name RF-IN 1 GND 2 3 GND GND 4 5 V DD Pin Description GPS signal from Antenna Ground Ground Ground I/O Note I 50Ω (1.57542GHz) RTC Backup Power Input for RTC and SRAM 6 7 GND BOOT GND 8 9 GND 10 GND 11 VDD 12 GND 13 NC 14 GND 15 GND 16 NC 17 GND 18 PEN 19 GND 20 NC 21 GND 22 GND 23 GND 24 GND 25 NC 26 GND 27 NC 28 GND 29 GND 30 TXA 31 RXA 32 NC 33 GND 34 NC 35 GND 36 GND Ground Module boots into flash memory program mode if VCC during reset Ground Ground Ground Supply Voltage Ground Electrically Open Ground Ground Electrically Open Ground Supply regulator enable Ground Electrically Open Ground Ground Ground Ground Electrically Open Ground Electrically Open Ground Ground Serial Port A Serial Port A Electrically Open Ground Electrically Open Ground Ground I I 1.8~5.0V If Input voltage is below than 1.8V, V RTC must be zero voltage DD Leave unconnected if not used. Use only factory production I 3.0 ~ 4.2V I Open or pull high (2.85~3.3V) for power enable (Internal 1MΩ Pull-up to VDD) Pull low (0V~1.0V) for power disable O I Open if not used 4 SR-96 User’s Manual V1.1.1

I/O Pin Description for SR-96S Pin Name RF-IN 1 GND 2 GND 3 4 GND V 5 Pin Description GPS signal from Antenna Ground Ground Ground RTC Backup Power Input for RTC DD and SRAM SR-96 Manual V1.1.1 I/O Note I 50Ω (1.57542GHz) I I 1.8~5.0V If Input voltage is below than 1.8V, V RTC must be zero voltage DD Leave unconnected if not used. Use only factory production 6 7 GND BOOT GND 8 GND 9 10 GND 11 VDD 12 GND 13 NC 14 GND 15 GND 16 NC 17 GND 18 GPIO 19 GND 20 NC 21 GND 22 GND 23 GND 24 GND 25 NC 26 GND 27 NC 28 GND 29 GND 30 TXA 31 RXA 32 NC 33 GND 34 NC 35 GND 36 GND Ground Module flash memory program mode if VCC during reset boots into Ground Ground Ground Supply Voltage Ground Electrically Open Ground Ground Electrically Open Ground General Purpose Input Output Ground Electrically Open Ground Ground Ground Ground Electrically Open Ground Electrically Open Ground Ground Serial Port A Serial Port A Electrically Open Ground Electrically Open Ground Ground I 3.0 ~ 3.5V I/O O I Open if not used 5 SR-96 User’s Manual V1.1.1

3.2 PCB Layout SR-96 Manual V1.1.1 6 SR-96 User’s Manual V1.1.1

Appendix: Software Specifications SR-96 Manual V1.1.1 The software is capable of supporting the following NMEA message formats specifically developed and defined by SiRF. NMEA Protocol NMEA Message Prefix Format Direction $GPGGA $GPGLL $GPGSA $GPGSV $GPMSS $GPRMC $GPVTG $GPZDA Time, position and fix type data. Latitude, longitude, time of position fix and status. GNSS DOP and active satellites Satellites in view. Radio beacon signal-to-noise ratio, signal strength, frequency, etc. Recommended minimum specific GNSS data. Speed and course over ground. Date and time. Out Out Out Out Out Out Out Out General NMEA Format The general NMEA format consists of an ASCII string commencing with a ‘$’ character and terminating with a sequence. NMEA standard messages commence with ‘GP’ then a 3-letter message identifier. The message header is followed by a comma delimited list of fields optionally terminated with a checksum consisting of an asterix ‘*’ and a 2 digit hex value representing the checksum. There is no comma preceding the checksum field. When present, the checksum is calculated as a bitwise exclusive of the characters between the ‘$’ and ‘*’. As an ASCII representation, the number of digits in each number will vary depending on the number and precision, hence the record length will vary. Certain fields may be omitted if they are not used, in which case the field position is reserved using commas to ensure correct interpretation of subsequent fields. 7 SR-96 User’s Manual V1.1.1

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