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RGM-3550LP User Manual

5. Mechanical

Layout

25x25x4mm patch antenna

25x25x2mm patch antenna

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Содержание RGM-3550LP

Страница 1: ...se of the business discussions between supplier and RoyalTek and is covered under the terms of the applicable Non Disclosure Agreements Disclosure of this information to other parties is prohibited without the written consent of RoyalTek Prepared by RoyalTek Company LTD 4F No 188 Wen Hwa 2nd Rd Kuei Shan Tao Yuan 33383 Taiwan TEL 886 3 3960001 FAX 886 3 3280976 http www royaltek com contact ...

Страница 2: ...Initial Draft Amanda Lee 1 1 2007 4 30 Current Acquisition 50mA typical Tracking 45mA typical Amanda Lee 1 2 2007 5 14 Chipset Sensitivity 159dBm tracking Cold start 35 sec open sky Warm start 35 sec open sky Hot start 1 sec open sky Amanda Lee 1 3 2008 11 19 Add 25x25x2mm patch antenna drawing Amy Liu ...

Страница 3: ...0LP Picture and Pin Definition 5 3 RGM 3550LP System Block Diagram 6 4 RGM 3550LP Technique Specification 7 5 Mechanical Layout 10 6 How to Assemble Fix RGM 3550LP 11 7 Software Specification and NMEA Protocol 12 8 Package Specification and Order Information 18 ...

Страница 4: ...the great performance when going though the urban canyon and foliage Product Features 20 parallel channels 159 dBm high GPS sensitivity Excellent sensitive for urban canyon and foliage environments Operable from 3 3V average tracking current is 45mA 3 3V and average Acquisition current is 50mA 6 pin Wire to Board WTB connector type GPS status light output TCXO design 0 1 second reacquisition time ...

Страница 5: ...5 RGM 3550LP User Manual 2 RGM 3550LP Picture and Pin Definition Pin 1 Pin 6 31 0 3 mm 35 0 3mm ...

Страница 6: ...ion Patch antenna with 1 Stage LNA 4Mega bits flash memory on chip MMCX External Antenna Supported 6 pin I O pin see page 7 Interface pin definition 6 Pin I O LNA SIRF GSC3F with 4M Flash RF frontend Base band Processor TCXO XTAL GPS Patch Antenna External Antenna MMCX Switch Connector SAW ...

Страница 7: ...date rate Continuous operation 1Hz 14 Testability It shall be able to be tested by SiRF test mode IV and single channel simulator 15 Protocol setup It shall store the protocol setup in the SRAM memory Interface 16 I O Pin 6 pin see page 7 about pin definition Mechanical requirements 17 Dimension 35 0 3 L x 31 0 3 W x 8 55 0 5 H mm 18 Weight 16 5g Power consumption 19 Vcc DC 3 3 5 20 Current Acquis...

Страница 8: ... VDD V IL IH 3 0 7 0 2 TXA O Serial port A VDD V VDD V OL OH 25 0 75 0 3 GND G Ground Reference Ground 4 VCC I DC Supply Voltage input DC 3 3V 5 5 GPS Status O GPS Status VDD V VDD V OL OH 25 0 75 0 6 Boot select I Boot mode VDD V VDD V IL IH 3 0 7 0 EXT Ant RFIN External Antenna RF Input RF IN External Antenna RF Input 5 0 85 2 V VOUT 30 Max mA IOut VCC 3 3V DC power Input this is the main DC pow...

Страница 9: ...off VoL 0 71 Max Power on search for satellite voltage is high LED solid VoH 2 13V min 3D fix found voltage is high low remain 1 second each LED blinking VoH 2 13V min VoL 0 71 Max External Antenna RF Input This is the MMCX RF Connector for External Active Antenna signal input External Active Antenna Spec Suggestion 1 Drive Output Voltage 5 0 85 2 V VOUT 2 Drive Output Current 30 Max mA IOut 3 LNA...

Страница 10: ...10 RGM 3550LP User Manual 5 Mechanical Layout 25x25x4mm patch antenna 25x25x2mm patch antenna ...

Страница 11: ...11 RGM 3550LP User Manual 6 How to Assemble Fix RGM 3550LP Below is our recommendation to assemble fix up RGM 3550LP GPS module on the customer board or device case Hole Hole ...

Страница 12: ...ps default 8 bit data 1 stop bit and no parity It supports the following NMEA 0183 Messages GGA GLL GSA GSV RMC and VTG NMEA Output Messages the Engine board outputs the following messages as shown in Table 1 Table 1 NMEA 0183 Output Messages NMEA Record Description GGA Global positioning system fixed data GLL Geographic position latitude longitude GSA GNSS DOP and active satellites GSV GNSS satel...

Страница 13: ...OP 1 0 Horizontal Dilution of Precision MSL Altitude 9 0 meters Units M meters Geoid Separation meters Units M meters Age of Diff Corr second Null fields when DGPS is not used Diff Ref Station ID 0000 Checksum 18 CR LF End of message termination Table 3 Position Fix Indicators Value Description 0 Fix not available or invalid 1 GPS SPS Mode fix valid 2 Differential GPS SPS Mode fix valid 3 GPS PPS ...

Страница 14: ...Active Satellites Table 4 contains the values of the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 Table 4 GSA Data Format Name Example Units Description Message ID GPGSA GSA protocol header Mode 1 A See Table 4 2 Mode 2 3 See Table 4 1 Satellite Used 07 Sv on Channel 1 Satellite Used 02 Sv on Channel 2 Satellite Used Sv on Channel 12 PDOP 1 8 Position Dilution of Precision HDOP ...

Страница 15: ...Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel 1 Range 1 to 32 Elevation 79 degrees Channel 1 Maximum 90 Azimuth 048 degrees Channel 1 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not tracking Satellite ID 27 Channel 4 Range 1 to 32 Elevation 27 degrees Channel 4 Maximum 90 Azimuth 138 degrees Channel 4 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not tr...

Страница 16: ...20598 ddmmyy Magnetic Variation degrees E east or W west Checksum 10 CR LF End of message termination VTG Course Over Ground and Ground Speed Table 7 contains the values of the following example GPVTG 309 62 T M 0 13 N 0 2 K 6E Table 7 VTG Data Format Name Example Units Description Message ID GPVTG VTG protocol header Course 309 62 degrees Measured heading Reference T True Course degrees Measured ...

Страница 17: ...uch as umbrella or in vehicle c Among high buildings d Under bridges or tunnels e Under high voltage cables or near by radio wave sources such as mobile phone base stations f Bad or heavy cloudy weather 4 If the satellite signals can not be locked or encounter receiving problem while in the urban area the following steps are suggested a Please plug the external active antenna into GPS receiver and...

Страница 18: ...Copyright 2007 2008 RoyalTek Company Ltd RGM 3550LP User Manual 8 Package Specification and Order Information 1 2 3 ...

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