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REB-3300 Operational Manual
REB-3300 Operational Manual
Version 1.0
2004/11/24
This document contains information highly confidential to RoyalTek Company
LTD (RoyalTek). It is provided for the sole purpose 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 Co
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REB-3300 Operational Manual RoyalTek GPS Module: REB-3300 Operational Manual INTRODUCTION.................................................................................................................... 3 PRODUCT FEATURES ....................................................................................................…. 3 PRODUCT APPLICATIONS .................................................................................................. 3 PRODUCT PICTURE......................
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REB-3300 Operational Manual RoyalTek GPS Module: REB-3300 Operational Manual Introduction RoyalTek REB-3300 low power and small form factor board is the newest generation of RoyalTek GPS Receiver. The GPS receiver is powered by SiRFStarIIe/LP technology with XTrac 2.0 firmware and RoyalTek proprietary navigation algorithm that providing you more stable navigation data. The smallest form factor and miniature design is the best choice to be embedded in a portable device like PDA, personal
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REB-3300 Operational Manual Personal positioning and navigation Marine navigation Timing application Product Picture REB-3300 Pin16 Pin 15 Pin 32 Pin 1 REB-3300 Interface Board RoyalTek Evaluation Kit REV-2000 for REB-3300 (Please refer to RoyalTek Evaluation Kit REV-2000 for REB-3300 Operational Manual for more information) 4
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REB-3300 Operational Manual REB-3300 Series System Block Diagram REB-3300 engine board consists of SiRF star IIe/LP chipset technology, 4/8/16Mbits flash memory, and proprietary software. The system is described as follows. a. Support external active patch antenna b. Support 4/8/16 Mega bits flash memory c. 30 I/O pins 5
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REB-3300 Operational Manual REB-3300 Technique Specification Impedance 50 No Function Specification GPS receiver 1 Chipset SiRF GSP 2e/LP, GRF 2i/LP 2 Frequency L1 1575.42MHz. 3 Code C.A. Code. 4 Channels 12. 5 Sensitivity (Tracking) It shall show C/No 37 dB-Hz when external power = -130dBm. 28 dBHz (SSII normal version software) 28 dBHz (SSII ES version software) 16 dBHz (SSII XTrac version software) 6 Sensitivity (Cold Start) 36 dBHz (SSII normal version software) 33 dBHz (
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REB-3300 Operational Manual Mechanical requirements 26 Weight 3.5g Power consumption 27 Vcc DC 3.3 ±5% 28 Current REB3300: Current 65mA@3.3V typical (w/o ext. antenna) 29 Trickle power mode Average current 65mA. (IO float) 30 Power down mode current 1. It means that the GPS receiver is in power down mode. 2. Current 800 A. Environment 31 Operating temperature -40 ~ 85 32 Humidity 95% 33 Interface Protocol 1. NMEA 0183 ver 3.0, GGA, GSA, RMC and GSV once per 2. SiRF Prot
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REB-3300 Operational Manual trace. It can reduce noise and increase the stability. (4) Antenna: Connecting to the antenna has to be routed on the PCB. The transmission line must to controlled impedance to connect RF_IN to the antenna or antenna connector of your choice. (5) Active antenna bias voltage: The Vcc_RF pin(pin 20) is provide voltage 3.0V. If you use active antenna, you can connect this pin to V_ANT_IN pin (pin 19) to provide bias voltage of active antenna. The bias voltage
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REB-3300 Operational Manual GPS Antenna Specification (Recommendation) Active patch antenna Receiving freq. 1575.42 +/-1.032MHz Polarization RHCP Output impedance 50 Ohm 2 stage LNA Connection: surface mounted on main PCB 9
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REB-3300 Operational Manual Mechanical Layout Mechanical requirements 1 REB-3300 Length= 25.4 mm Width= 25.4 mm Thickness= 3mm 2Weight 3.5g 10
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REB-3300 Operational Manual Hardware interface Definition of Pin assignment Pin # Signal Name I/O Description Characteristics 1 VCC I DC Supply Voltage DC +3.3V ±10% input 2 GND G Ground Digital Reference Ground 3 Bootselect I Boot mode V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL 4 RXA I Serial port A V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL 5 TXA O Serial port A V ≥ 2.4V V ≤ 0.4V OH OL 6 TXB O Serial port B V ≥ 2.4V V ≤ 0.4V OH OL 7 RXB I Seri
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REB-3300 Operational Manual 24 GPIO6 I/O General purpose I/O V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL V ≥ 2.4V V ≤ 0.4V OH OL 25 GPIO5 I/O General purpose I/O V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL V ≥ 2.4V V ≤ 0.4V OH OL 26 GPIO7 I/O General purpose I/O V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL V ≥ 2.4V V ≤ 0.4V OH OL 27 GPIO13 I/O General purpose I/O V ≥ 0.7V *VCC V ≤ 0.3V *VCC IH IL V ≥ 2.4V V ≤ 0.4
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REB-3300 Operational Manual antenna(or antenna connector) has to be a controlled impedance line (Microstrip at 50 ). V_ANT_IN This pin is reserved an external DC power supply for active antenna. If using 3.0V active antenna, pin 19 has to be connected to pin 20. If using 3.3V or 12V active antenna ,this pin has to be connected to 3.3V or 5V power supply. VCC_RF This pin provides DC voltage 3.0 for active antenna. Reset This pin provides an active-low reset input to the board. It ca
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REB-3300 Operational Manual Test Software Specification No Function Specification 1 Clock offset 88000Hz VAL 104000Hz 2 Clock Drift VAL 200Hz 3 C/No Hi Power Mean VAL 38dB 4 C/No Hi Power Sigma VAL 2dB 5 Bit Sync VAL 5 Sec 6 Frame Sync VAL 28 Sec 7 Phase Error VAL 0.22 14
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REB-3300 Operational Manual Software Interface NMEA V3.0 Protocol Its output signal level is TTL: 4800 bps (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
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REB-3300 Operational Manual 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 CRLF End of message termination Table 3 Position Fix Indicator Value Description 0 Fix not available or invalid 1 GPS SPS Mode, fix valid 2 Differential GPS, SPS Mode, fix valid 3 GPS PPS Mode, fix valid GLL-Geographic Position –Latitude/Longitude Table 3 contains the values of the
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REB-3300 Operational Manual 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 ExampleUnits 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 HD
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REB-3300 Operational Manual Table 5 GGA Data Format Name ExampleUnits Description Message ID $GPGSV GSV protocol header Number of 2 Range 1 to 3 1 Messages 1 Messages Number 1 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
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REB-3300 Operational Manual Course Over 309.62 degrees True Ground Date 120598 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 ExampleUnits Description Message ID $GPVTG VTG protocol header Course 309.62 degreesMeasured heading Reference T True Course
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REB-3300 Operational Manual RoyalTek GPS Receiver User’s Tip 1. GPS signal will be affected by weather and environment conditions, thus suggest to use the GPS receiver under less shielding environments to ensure GPS receiver has better receiving performance. 2. When GPS receiver is moving, it will prolong the time to fix the position, so suggest to wait for the satellite signals to be locked at a fixed point when first power-on the GPS receiver to ensure to lock the GPS signal at th
