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RoyalTek Confidential

REB-1722 Operational Manual

Content

1. Introduction...................................................................................................2
2. Software

Interface.......................................................................................15

3. GPS

Receiver

User’s Tip ............................................................................21

4. Package Specification and Order Information ...........................................22
5. Contact

Royaltek ........................................................................................23

6. Revision

History .........................................................................................23

Содержание REB-1722 Series

Страница 1: ...purpose of the business discussions between customer 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 333 Taiwan TEL 886 3 3960001 FAX 886 3 3960065 http www royaltek com contact ...

Страница 2: ...onfidential 2 REB 1722 Operational Manual Content 1 Introduction 2 2 Software Interface 15 3 GPS Receiver User s Tip 21 4 Package Specification and Order Information 22 5 Contact Royaltek 23 6 Revision History 23 ...

Страница 3: ...ice personal locator Speed Camera detector and vehicle locator Product Features 20 parallel channels SMT type with stamp holes Ultra low power consumption TCXO design 0 1 second reacquisition time Small form factor with embedded SiRF Star III single chip technology NMEA 0183 compliant protocol customize protocol Enhanced algorithm for navigation stability Excellent sensitivity for urban canyon and...

Страница 4: ...RoyalTek Confidential 3 REB 1722 Operational Manual 1 2 Product Pictures 1 REB 1722 2 REB 1722 Interface board ...

Страница 5: ...RoyalTek Confidential 4 REB 1722 Operational Manual 1 3 REB 1722 Series Block Diagram System block diagram description a External antenna b 4 Mega bits flash memory c 28 pin I O pin ...

Страница 6: ...ical 8 Chip Hot start 1 sec open sky Typical 9 Reacquisition 0 1sec typical 10 Position accuracy 10meters at 2D RMS 11 Maximum altitude 18000 m 12 Maximum velocity 515 m s 13 Update rate Continuous operation 1Hz 14 Protocol setup It shall store the protocol setup in the SRAM memory 15 DGPS 1 WAAS EGNOS 2 RTCM protocol Interface 16 LNA 18dB Gain Typical 17 I O Pin 28pins Mechanical requirements 18 ...

Страница 7: ...V_BACKUP C2 0 1uF AADET0_N STATUS C7 0 01uF VC_RF V_ANT_3V3 Active antenna short detect circuit NOHM 2SC2412K SC 59 C9 0 01uF V_ANT_3V3 C3 0 1uF NOHM 2SC2412K SC 59 V_ANT_3V3 Q1 2SC2412K 3 2 1 Active antenna Normal suggest circcuit AADET0_N U1 REB 1722 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 SDA2 SCL2 TxD1 RxD1 NC VCC GND VCC_OUT CFG_COM1 RESET_N V_BCKP BOOT GND ...

Страница 8: ...ve antenna bias voltage The VCC_RF pin pin 18 is provided voltage 2 85V If you use active antenna you can connect this pin to V_ANT pin pin 19 to provide bias voltage of active antenna The bias voltage will be through GPS_RF_IN pin to provide active antenna bias voltage from VCC_RF pin If your bias voltage of active antenna isn t 2 85V you can input bias voltage to V_ANT pin pin 19 and input bias ...

Страница 9: ... Confidential 8 REB 1722 Operational Manual Recommend Layout PAD TOP View Parameter Specification A 22 4 0 6 0 1mm B 17 0 0 1mm C 3 0 0 2mm D 2 55 0 3 0 1mm E 1 1 0 1mm F 3 80 0 1mm G 1 10 0 1mm H 2 85 0 3 01mm ...

Страница 10: ...RoyalTek Confidential 9 REB 1722 Operational Manual Footprint and paste mask TOP View ...

Страница 11: ...RoyalTek Confidential 10 REB 1722 Operational Manual 1 6 Mechanical Layout ...

Страница 12: ...RoyalTek Confidential 11 REB 1722 Operational Manual 1 7 Hardware interface Interface Pin Number ...

Страница 13: ...o VCC can open 9 CFG_COM1 I Config Pin V V V V V IL IH 86 0 0 3V 0 2 15 3 10 RESET_N I Reset Active low 8 0 2 3V VIH V VIL 11 V_BCKP I Backup voltage supply 10uA Current 3 6V 1 4 DC 12 BOOT I Boot mode V V V V V IL IH 86 0 0 3V 0 2 15 3 13 GND Ground Reference Ground 14 GND Ground Reference Ground 15 GND Ground Reference Ground 16 RF_IN I GPS Signal input 50 Ω 1 57542GHz 17 GND Ground Reference Gr...

Страница 14: ...software TXD1 This is the main transmitting channel and is used to output navigation and measurement data to SiRFdemo or user written software GPS_RF_IN This pin receives GPS analog signal The line on the PCB between the antenna or antenna connector has to be a controlled impedance line Microstrip at 50Ω V_ANT_IN This pin is reserved as external DC power supply input for active antenna 1 If using ...

Страница 15: ... Backup battery This is the battery backup input that powers the SRAM and RTC when main power is removed Typical current draw is 10uA The supply voltage should be between 1 4V and 3 6V GPIO Functions SCL2 SDA2 CFG_COM1 AADET0_N EXTINT0 Several I Os are connected to the digital interface connector for custom applications AADET0_N AADET0_N is an input pin and it is used to report whether an external...

Страница 16: ... Course over ground and ground speed GGA Global Positioning System Fixed Data Table 2 contains the values of the following example GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 Table 2 GGA Data Format Name Example Units Description Message ID GPGGA GGA protocol header UTC Position 161229 48 7 hhmmss sss Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12...

Страница 17: ...ted 6 Dead Reckoning Mode fix valid GSA GNSS DOP and 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 5 Mode 2 3 See Table 6 ID of Satellite Used 07 Sv on Channel 1 ID of Satellite Used 02 Sv on Channel 2 ID of Satellite ...

Страница 18: ... the following example GPGSV 2 1 07 07 79 048 42 02 51 062 43 26 36 256 42 27 27 138 42 71 GPGSV 2 2 07 09 23 313 42 04 19 159 41 15 12 041 42 41 Table 7 GSV Data Format Name Exampl e Units Description Message ID GPGS V GSV protocol header Total Number of Messages1 2 Range 1 to 3 Messages Number1 1 Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel 1 Range 1 to 32 Elevation 79 degrees Chan...

Страница 19: ...ble 8 contains the values of the following example GPRMC 161229 487 A 3723 2475 N 12158 3416 W 0 13 309 62 120598 10 Table 8 RMC Data Format Name Example Units Description Message ID GPRMC RMC protocol header UTC Time 161229 487 hhmmss sss Status A A data valid or V data not valid Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east...

Страница 20: ...se over rgound 79 65 degrees Measured heading Reference T True Course over ground degrees Measured heading Reference M Magnetic Speed over ground 2 69 Knots Measured speed Units N Knots Speed over ground 5 0 Km hr Measured speed Units K Kilometer per hour Mode A A autonomous D DGPS E DR Checksum 38 CR LF End of message termination GLL Geographic Position Latitude Longitude Table 10 contains the va...

Страница 21: ...ssage ID GPGLL GLL protocol header Latitude 2503 6319 ddmm mmmm N S indicator N N north or S south Longitude 12136 0099 Dddmm mmmm E W indicator E E east or W west UTC Time 053740 000 hhmmss sss Status A A data valid or V data not valid Mode A A autonomous D DGPS E DR Checksum 52 CR LF End of message termination ...

Страница 22: ...h as umbrella or in vehicle iii Among high buildings iv Under bridges or tunnels v Under high voltage cables or near by radio wave sources such as mobile phone base stations vi Bad or heavy cloudy weather D If the satellite signals can not be locked or encounter receiving problem while in the urban area the following steps are suggested i Please plug the external active antenna into GPS receiver a...

Страница 23: ...RoyalTek Confidential 22 REB 1722 Operational Manual 4 Package Specification and Order Information Shipment Method Tape and reel SMT type with stamp holes 28 holes ...

Страница 24: ...EL 886 3 3960001 FAX 886 3 3960065 Web Site http www royaltek com Web Site Customer Service http www royaltek com contact 6 Revision History Title REB 1722 GPS Receiver Module Doc Type Operational Manual Revision Number Date Author Change notice 0 1 2009 08 13 May Chen Initial Release 0 2 2009 09 02 May Chen Update the application circuit Copyright 2009 RoyalTek Company Ltd ...

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