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FALCOM A2D-JP, Описание

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Description

GPS receiver

A2D–JP

Version 1.03

Side 24

Frequency (IF) sampled data to the Scorpio device. The Scorpio de-
vice contains an integral microprocessor and all the required GPS-
specific signal processing hardware. Memory and other external 
supporting components configure the GPS receiver into a complete 
navigation system.

6.2.2 Product applications

❐

Automotive applications

❐

Marine navigation applications

❐

Aviation applications

❐

Timing applications

6.3

Technical description

6.3.1 General information

Since the GPS receiver determines its position by ranging signals 
from four or more GPS satellites orbiting the Earth, its antenna must 
have reasonable visibility of the sky.

Navigation modes

The GPS receiver supports three types of navigation mode operati-
ons.

❐

Three dimensional navigation (3D):

 The GPS receiver 

defaults to 3-D navigation whenever at least four GPS satelli-
tes are being tracked In 3-D navigation, the GPS receiver com-
putes latitude, longitude, altitude and time information from 
satellites measurements.

❐

Two dimension navigation (2D):

 When less than four GPS 

satellite signals are available or when a fixed value of altitude 
can be used to produce an acceptable navigation solution, the 
GPS receiver will enter the 2-D navigation mode. Forced ope-
rating in 2-D mode can be commanded by the OEM.

❐

DGPS navigation:

 The GPS receiver processes DGPS cor-

rections through its Auxiliary serial port. These corrections 
must be compliant with the RTCM recommended standards 
RTMC-104.

Satellites acquisition

The TTFF of the GPS receiver depends from start conditions.
Start condition means if old satellites data are available and how old 
they are. The conditions are:

❐

Warm start:

 results from an short (few minutes) interrupt by 

continuous navigation. Data are available in SRAM.

Содержание A2D-JP

Страница 1: ...Description Embedded GSM GPS Module A2D JP...

Страница 2: ...nguages are permitted only with the prior written consent of Fal com Wireless Communications GmbH All details of FALCOM s products particularly those in catalogues in printed or other form contain dia...

Страница 3: ...c equipment 8 2 8 Medical electronic equipment 8 2 9 Aircraft 8 2 10 Children 8 2 11 Blasting areas 9 2 12 Potentially explosive atmospheres 9 2 13 Non ionising radiation 9 3 Safety standards 10 4 Tec...

Страница 4: ...t overview 23 6 2 1 GPS receiver architecture 23 6 2 2 Product applications 24 6 3 Technical description 24 6 3 1 General information 24 6 3 2 Hardware interface 25 6 3 2 1 Configuration and timing si...

Страница 5: ...g of A2D JP 2 Figure 2 Technical drawing of A2D JP 3 Figure 3 Interface connections 12 Figure 4 Interface A 60pin connector AMP 177984 2 12 Figure 5 GPIO 1 Flash_LED 17 Figure 6 Sample application SIM...

Страница 6: ...3 Side 1 Versions Version number Author Changes V 1 00 M Menz Initial version V 1 01 G Buch Chip set of RAM Flash changed GPS V 1 02 G Buch Reset chip changed GPS V 1 03 G Buch Layout of L2 R35 C2 D13...

Страница 7: ...he FALCOM GSM module and the FALCOM GPS module based on the CONEXANT Zodiac 2000 chip set Information furnished herein by FALCOM GmbH is believed to be accurate and reliable However no responsibility...

Страница 8: ...ion A2D JP Version 1 03 Side 3 Figure 2 Technical drawing of A2D JP 4 53 8 0 15 73 2 0 15 90 2 0 3 15 20 16 35 6 65 2 4 65 6 85 12 1 max 4 40 3 0 15 48 4 0 25 2 7 3x 5 2 8 13 3 1 65 1 7 t i e f 25 5 5...

Страница 9: ...station Equipment Identity ME Mobile Equipment NMEA National Maritime Electronics Association PIN Personal Identification Number PLMN Public Land Mobile Network PRN Pseudorandom Noise Number The Ident...

Страница 10: ...ETSI GSM 07 07 AT command set for GSM Mobile Equipment 3 ITU T V 25ter Serial asynchronous automatic dialling and control 4 Zodiac GPS receiver Family Designers Guide http www falcom de service downl...

Страница 11: ...our modem the cellular system handling your calls controls both the radio frequency and the power level of your cellular modem The Global Positioning System uses satellite navigation an entirely new c...

Страница 12: ...tact with the skin a minor burn may result Re place a damaged antenna immediately Consult your manual to see if you may change the antenna yourself If so use only a manufac turer approved antenna Othe...

Страница 13: ...nt Consult the manufacturer of any personal medical devices such as pacemakers hearing aids etc to determine if they are adequately shielded from external RF energy Turn your modem OFF in health care...

Страница 14: ...s grain dust or metal powders Do not transport or store flammable gas liquid or explosives in the compartment of your vehicle which contains your modem or acces sories Before using your modem in a veh...

Страница 15: ...ded GMS GPS modem meets the safety standards for RF receivers and the standards and recommendations for the pro tection of public exposure to RF electromagnetic energy established by government bodies...

Страница 16: ...s switched off in OFF mode 1 AT CPOF was issued and SOFT_ON was set to LOW the internal regulator is still working in idle mode base station sends at 85 dBm in transmit mode at power level 7 in transm...

Страница 17: ...Description Technical data A2D JP Version 1 03 Side 12 Figure 3 Interface connections Figure 4 Interface A 60pin connector AMP 177984 2 B A C D Pin No 1 1 60...

Страница 18: ...232 Ring Indicator CMOS 2 8 V out 10 DCD RS 232 Data Carrier Detect CMOS 2 8 V out 11 SOFT ON Turn phone on CMOS 2 8 V inp 12 RING PWM Ringer Interface CMOS 2 8 V out 13 TX RS 232 Transmit Data CMOS 2...

Страница 19: ...47 GROUND 48 SDO 2 Serial 2 Data Output CMOS 3 3 V out 49 SDO 1 Serial 1 Data Output CMOS 3 3 V inp 50 SDI 1 Serial 1 Data Input CMOS 3 3 V out 51 WHEEL_TICK Reserved for Wheel in 52 GROUND 53 DIRECT...

Страница 20: ...DCS Sensitivity 100 dBm Selectivity 200 kHz 9 dBc Selectivity 400 kHz 41 dBc Dynamic range 62 dB Intermodulation 43 dBm Co channel rejection 9 dBc Table 8 Receiver Transmitter Maximum output power EG...

Страница 21: ...ui red to add serial resistance on all the lines you will use typical value from 4 7 to 10 K There are a few pins needed for the operation of the module The handling of that pins is described as follo...

Страница 22: ...etwork If it flashes in a 1sec period then the module is on and a call is in progress incoming or outgoing GPIO 1 can be an input into a controller here it needs to be driven by an open collector circ...

Страница 23: ...l be switched off For switching the module off the commands AT CPOF or AT CFUN 0 have to be issued If SOFT_ON is HIGH then only the RF part of the module is off but the AT command set is still working...

Страница 24: ...UN 1 1 can be used This will de register the modem from the network and bring it into the state before the PIN could be entered The Flash_LED pin will shortly toggle to OFF and back to ON again to sho...

Страница 25: ...modem s local flow control setting ATO Return to data mode AT VGR Tune the receive gain ATS0 n Go off hook after n th ringing signal n 1 5 AT VGT Tune the transmit gain ATS0 0 No automatic answering o...

Страница 26: ...splay manufacturer ID AT CRC Select call service report AT CGMM Display model ID AT CLIP Calling line identification presenta tion AT CGMR Display version of GSM module AT CLIR Control the calling lin...

Страница 27: ...ses the Zodiac 2000 chip set com po sed of two custom CONEXANT devices together with suitable memory devices Please consult CONEXANT for special information about the GPS Zodiac 2000 chip set Signal a...

Страница 28: ...on with the GPS receiver is established through two asynchronous serial I O ports The GPS receiver s primary serial port outputs navigation data and accepts commands from OEM ap plication in NMEA 0183...

Страница 29: ...igation 3D The GPS receiver defaults to 3 D navigation whenever at least four GPS satelli tes are being tracked In 3 D navigation the GPS receiver com putes latitude longitude altitude and time inform...

Страница 30: ...Hardware interface The following paragraphs describe the basic functions allocated to the various pins on the AMP interface connector These functions are divided into three groups Configuration and t...

Страница 31: ...ARK The Time Mark output provides a one pulse per second 1 pps signal to the OEM application processor When the GPS receiver provides a valid navigation solution the rising edge of each TMARK pulse is...

Страница 32: ...id the default values in ROM will be used The OEM application must provide any Line Driver Line Receiver LD LR circuitry to extend the range of the interface Port Idle is nominally a CMOS logical high...

Страница 33: ...de a DC power input to the SRAM and RTC devices only The GPS receiver automatically switches to the VBATT input signal when primary DC power PWRIN is removed from the board This feature is intended to...

Страница 34: ...08 Frequency standard Parameter in use 1110 Power management Duty cycle in use 1117 Serial port communication Parameters in use 1130 EEPROM update Show data ID for the last write 1135 EEPROM status Sh...

Страница 35: ...non volatile storage 1310 Power management control 1317 Serial port communication parame ter 1330 Message protocol control 1331 Factory calibration input For oscillator 1350 Raw DGPS RTCM SC 104 data...

Страница 36: ...onexant proprietary Receiver ID Channels software version RID Recommended minimum specific GPS Data Time date position course and speed RMC Track made good and ground Speed Course and speed VTG Conexa...

Страница 37: ...ogram Figure 8 The A2D JP evaluation board Figure 8 shows the A2D JP evaluation board in complete packaging i e A2D JP evaluation board A2D JP module power supply FRIWO type FW 3299 12 VDC 580 mA GPS...

Страница 38: ...de 33 available So the data of both modules can be processed by your PC at the same time Thus the evaluation board offers an excellent possibility for develop ment and testing trials of your own appli...

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