EZGPM01

EZGPM01 data sheet Device features Fully self-contained 12 channel GPS receiver Fully EMI shielded SiRFstar™ IIe/LP architecture • GRF2i/LP RF front-end IC • GSP2e/LP GPS Engine with Integrated Processor SBAS(Satellite Based Augmentation System) support Fast time-to-first-fix 8Mbit Flash memory Built-in Low-noise amplifier Advanced low power modes Operating Voltage 3.3V Battery supply pin for internal backup memory and real time clock Passive and active antenna support Active antenna bias supply voltage pin Active antenna overcurrent protection Industrial operating temperature range -40ºC …85ºC Very compact : 25.4 X 25.4 X 3 mm Applications Navigation Aviation Automotive applications Location Based Services Timing applications EZGPM01 GPS RECEIVER Product Information Data Sheet M ARCH 2004 General Description The EZGPM01 GPS Receiver is a fully selfcontained single-board 12 channel parallel receiver module intended as a component for OEM Global Positioning System(GPS). Based on the SiRFstar™IIe/LP architecture, the module provides complete GPS signal processing, thus providing accurate satellite position data. The EZGPM01 is a completely shielded module. Key Features Industry Leading GPS Performance Builds on the high performance SiRFstar™IIe/LP core High-speed signal acquisition using 1920 time/frequency search channels SBAS(Satellite Based Augmentation System) support Low Power GPS Architecture Extreme low power in power-down mode, but capable of very fast starts Copyright © EAZIX, Inc. 2004. All Rights Reserved 1 EZGPM01 data sheet Maximizes GPS Position Availability SingleSat™ updates in reduced visibility Superior urban canyon performance FoliageLock™ or weak signal tracking Multiple Operating Modes Continuous Mode TricklePower™ Mode Push-to-Fix™ Mode Block Diagram Antenna Input BOOTSELECT XTAL GPS Data AGC Clock VANT (Optional) LNA RF Filter XTAL RTC GSP2e/LP Signal Processor 1PPS RXA/TXA RXB/TXB GRF2i/LP RF IC Power Battery Voltage Regulator Reset IC Data Bus Address Bus FLASH 8Mbit EZGPM01 Figure 1: EZGPM01 Block Diagram Copyright © EAZIX, Inc. 2004. All Rights Reserved 2 EZGPM01 data sheet Mechanical Drawing 2.5mm 1.0mm 3.0mm 2mm 2mm 4.9mm v 1.9mm 2.8mm 25.4mm 9.4mm 1.277mm 8mm 1.5mm 25.4mm 6.35mm 12.6mm Figure 2: EZGPM01 recommendations for layout and pads Copyright © EAZIX, Inc. 2004. All Rights Reserved 3 EZGPM01 data sheet Device Terminal Functions 16 17 18 19 20 15 14 13 12 11 21 22 23 24 25 26 27 28 29 30 10 9 8 7 6 5 4 3 2 1 Figure 3: EZGPM01 Terminals Copyright © EAZIX, Inc. 2004. All Rights Reserved 4 EZGPM01 data sheet Terminal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Terminal Name VCC DGND BOOTSELECT RXA TXA TXB RXB GPIO3 RF_ON DGND AGND AGND AGND AGND AGND AGND RF_IN AGND V_ANT VCC_RF V_BAT RESET_N GPIO10 GPIO6 GPIO5 GPIO7 GPIO0 GPIO1 T-MARK(1PPS) DGND I/O I I I O O I I/O O Description 3.3V DC supply voltage Digital ground Boots in update mode when high Serial Data Input A Serial Data Output A Serial Data Output B Serial Data Input B Indicates RF part is ON Digital ground Analog ground Analog ground Analog ground Analog ground Analog ground Analog ground Antenna input Analog ground Supply for active antenna 2.85V output of RF section External backup battery Resets the module when low I I O I I I/O I/O I/O I/O I/O I/O O One-pulse-per-second Digital ground Table 1: Device Terminal Functions Copyright © EAZIX, Inc. 2004. All Rights Reserved 5 EZGPM01 data sheet Electrical Characteristics Absolute Maximum Ratings Parameter Power Supply Voltage Input Pin Voltage Antenna Bias Current Storage Temperature Symbol Min Max Vcc 6 Vin 5 Iant 100 Tstg -55 +125 Table 2: Absolute Maximum Ratings Units V V mA ºC Operating Conditions TA = 25ºC; 3V active antenna Parameter Power Supply Voltage Backup Battery Voltage Antenna Bias Voltage Supply Current TricklePower Supply Current Standby Battery Current Antenna Bias Current Operating Temperature Symbol Vcc Vbat Vant Icc Itps Vcc = 3.3V Vcc = 3.3V; 20% duty cycle; 1 sec update period Vbat = 3.0V Vant = 3.0V -40 Table 3: Operating Conditions Condition Min 3.0 2.5 2.0 Typ 3.3 3.0 3.0 67 16.5 Max 6 3.6 12 Units V V V mA mA Ibat Iant Topr 3.8 18 85 A mA ºC Electrical Specifications General Frequency CA Code Channels Sensitivity Holding Sensitivity(C/N ave. 26dB-Hz) Accuracy Position Copyright © EAZIX, Inc. 2004. All Rights Reserved L1, CA code, 1575.42 MHz 1.023 MHz chip rate 12 -144dBm 10 meters CEP (SA off) 6 EZGPM01 data sheet Velocity Time DGPS Accuracy Position Velocity Datum Time-To-First-Fix Reacquisition SnapStart™ Hot Start W arm Start Cold Start Serial Port Electrical Interface Protocol support Time – 1PPS Level Pulse Duration Time Reference Measurement 0.1 meters/second (SA off) 1 sec synchronized to GPS time < 5 meters (SA off) 0.05 meters/second, typical W GS-84 100ms < 3 seconds < 8 seconds < 38 seconds < 45 seconds 2 full duplex serial communication NMEA, SiRF binary, RTCM SC-104 CMOS 100 ms At the pulse positive edge Aligned to GPS second Table 4: Electrical Specifications Operating Modes TricklePower™ Description The TricklePower™ mode provides the lowest average power dissipation by powering down the module after a position fix. It cycles through three states: tracking state(or full power), cpu state, and trickle state. The receiver is in the full power tracking state when it is first turned on, after a system reset, and when the internal RTC wakeup interrupt is generated. Satellite search, initial acquisition, initial position calculation, and tracking measurements are always taken in full power. In the CPU state, the RF antenna section and GPS clock has been turned off, although the RTC keeps running. The CPU would keep running to process the GPS data until a position fix is determined and the result has been transmitted by the serial communication interface. The trickle state is a low power standby state in which the CPU clock and RF circuits are turned off but power is still applied to the baseband. After a set amount of time, the receiver wakes up, makes a reset and tries to acquire satellites. Copyright © EAZIX, Inc. 2004. All Rights Reserved 7 EZGPM01 data sheet Push-to-Fix™ Description The push-to-fix™ mode puts the receiver into a background duty cycle mode that provides a periodic refresh of position, GPS time, ephemeris data, and RTC calibration every 30 minutes. The push-to-fix mode sets the receiver in a background duty cycle consisting of 30 seconds of On time in the tracking state at full power, followed by a position computation in the CPU state, followed by approximately 29.5 minutes in the trickle state. Copyright © EAZIX, Inc. 2004. All Rights Reserved 8 EZGPM01 data sheet Application Circuit Figure 4: EZGPM01 Reference Design Copyright © EAZIX, Inc. 2004. All Rights Reserved 9 EZGPM01 data sheet Ordering and Contact Information Order Number EZGPM01 Description MOQ is 1k. Leadtime: 12-16 weeks All trademarks mentioned in this document are property of their respective owners. SiRF and SiRF logo are registered trademarks of SiRF Technology, Inc. SiRFstar, SingleSat, SnapLock, SnapStart, FoliageLock, Push-to-Fix, TricklePower are trademarks of SiRF Technology, Inc. EAZIX, Inc. Unit 301 Plaz@ Building B 6530 Northgate Avenue, Filinvest Corporate City Alabang, Muntinlupa City Philippines 1770 Tel: + 632 772-4941 + 632 772-4942 + 632 772-4943 Fax: + 632 772-4944 Website: http://www.eazix.com/ E-mail: info@eazix.com Copyright © EAZIX, Inc. 2004. All Rights Reserved 10