RoyalTek REB-3310 Manuale utente
REB-3310 Operational Manual
REB-3310 Operational Manual
Version 1.0
2005/4/7
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 Company LTD.
8F,256 Yang Guang Street, Neihu Chiu,Taipei, Taiwan, R.O.C.
TEL: 886-2-77215000
FAX: 886-2-77215666
http://www.royaltek.com/contact
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REB-3310 Operational Manual
RoyalTek GPS Module: REB-3310 Operational Manual
INTRODUCTION.................................................................................................................... 3
PRODUCT FEATURES ....................................................................................................…. 3
PRODUCT APPLICATIONS .................................................................................................. 3
PRODUCT PICTURE................................................................................................................4
REB-3310 SERIES SYSTEM BLOCK DIAGRAM.................................................................. 6
REB-3310 TECHNIQUE SPECIFICATION..........................................................................…. 7
APPLICATION CIRCUIT .....................................................................................………….. 8
RECOMMENDED LAYOUT PAD ............................................................................………….. 9
GPS ANTENNA SPECIFICATION ................................................ ........................................ 10
MECHANICAL LAYOUT .......................................................................................……….…...11
HARDWARE INTERFACE …….............................................. ................................................12
DEFINITION OF PIN ASSIGNMENT ........................................................ ......................……13
SOFTWARE INTERFACE................................................................................…… ……….…15
NMEA V3.0 PROTOCOL..................................................................................…………….…15
GPS RECEIVER USER’S TIPS......................................................................................……..20
MTBF ESTIMATION………………….............................................. .......................……......… 21
PACKAGE SPECIFICATION AND ORDER INFORMATION................. ................……......…21
CONTACT INFORMATION SECTION....................................................................……......…21
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REB-3310 Operational Manual
RoyalTek GPS Module: REB-3310 Operational Manual
Introduction
RoyalTek REB-3310 low power and small form factor board is the newest generation
of RoyalTek GPS Receiver. The GPS receiver is powered by SiRF Star III technology
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 position and navigation like
personal locator, speed camera detector and vehicle locator. The excellent sensitivity
of REB-3310 gets the great performance when going though the urban canyon and
foliage.
Product Features
20 parallel channels
Extreme fast TTFF at low signal level
Operable from 3.3V/72mA continuous mode.
SMT type with stamp holes
Pin reserved for Backup battery and RF connector
TCXO design
7 I/O lines(GPIO) available to connect
0.1 second reacquisition time
Small form factor.
NMEA-0183 compliant protocol/custom protocol.
Enhanced algorithm for navigation stability
Excellent sensitive for urban canyon and foliage environments.
SBAS (WAAS, EGNOS and MSAS) support
Auto recovery while RTC crashes
Trickle power supported
ARM 7 CPU core accessible.
4/8/16Mbits Flash Memory.
Product applications
Automotive navigation
Personal positioning and navigation
Marine navigation
Timing application
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REB-3310 Operational Manual
Product Picture
REB-3310
Pin16 Pin 15
Pin 32 Pin 1
REB-3310 Interface Board
The interface board
PIN REB-3300 REB-3310
1 VCC VCC_IN
2 GND GND
3 Boot select BOOT
4 RXA RXA
5 TXA TXA
6 TXB TXB
7 RXB RXB
8 GPIO_3 GPIO_14
9 RF_ON RF_ON
10 GND GND
11 GND_A GND_A
12 GND_A GND_A
13 GND_A GND_A
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REB-3310 Operational Manual
14 GND_A GND_A
15 GND_A GND_A
16 GND_A GND_A
17 RF_IN RF_IN
18 GND_A GND_A
19 V_ANT_IN V_ANT
20 VCC_RF VCC_RF
21 V_BAT Battery
22 Reset IC_RESET
23 GPIO_10 GPIO_10
24 GPIO_6 GPIO_1
25 GPIO_5 GPIO_5
26 GPIO_7 GPIO_0
27 GPIO_13 GPIO_13
28 GPIO_15 GPIO_15
29 PPS TIMEMARK
30 GND GND
RoyalTek Evaluation Kit REV-2000 for REB-3310
(Please refer to RoyalTek Evaluation Kit REV-2000 for REB-3310 Operational Manual
for more information)
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REB-3310 Operational Manual
REB-3310 Series System Block Diagram
REB-3310 engine board consists of SiRF star III 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
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REB-3310 Operational Manual
REB-3310 Technique Specification
Impedance：50Ω
No Function Specification
GPS receiver
1 Chipset SiRF Star III
2 Frequency L1 1575.42MHz.
3 Code C.A. Code.
4 Channels 20
5 Sensitivity (Tracking) -159dBm.
6 Cold start 37 sec
7 Warm start 35 sec
8 Hot start 1 sec
9 Reacquisition 0.1sec typical
10 Position accuracy ≦25m CEP.
11 Maximum altitude 18000 m
12 Maximum velocity 514 m/s
13 Trickle power mode Duty cycle ≦34%. (Variable)
Default: disable (option: enable)
14 Update rate Continuous operation: 1Hz
15 Testability It shall be able to be tested by SiRF test mode 4 and single
channel simulator.
16 Protocol setup It shall store the protocol setup in the SRAM memory.
17 DGPS 1.WAAS, EGNOS
2.RTCM protocol
Interface
18 I/O Pin 30pin stamp holes
Mechanical requirements
19 Weight ≦3.5g
Power consumption
20 Vcc DC 3.3 ±5%
21 Current REB-3310:
Environment
23 Operating temperature -30 ~ 85℃
24 Humidity ≦95%
25 Interface Protocol 1. NMEA 0183 ver 3.0, GGA, GSA, RMC and GSV once per
2. SiRF Protocol
3. 4800 bps, 8 data bits, no parity, 1 stop bits
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REB-3310 Operational Manual
Application Circuit
(1) Ground Planes:
REB-3310 GPS receiver needs two different ground planes. The GND_A pin(11、
12、13、14、15、16、18) shall be connect to analog ground.
The GND pin(2、10、30) connect to digital ground.
(2) Serial Interface:
The Serial interface pin(RXA、TX1、TXB、RXB) is recommended to pull up(10KΩ).
It can increase the stability of serial data.
(3) Backup Battery:
It’s recommended to connect a backup battery to V_BAT.
In order to enable the warm and hot start features of the GPS receiver. If you don’t
intend to use a backup battery, connect this pin to GND or open.
If you use backup battery, shall need to add a bypassing capacitor (10uF) at V_bat
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 providing 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
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REB-3310 Operational Manual
antenna. The bias voltage will through RF_IN pin to provide active antenna bias
voltage from Vcc_RF pin.
If your bias voltage of active antenna isn’t 3.0V, you can input bias voltage to
V_ANT_IN pin (pin 19). And input bias voltage of you need. It can open if you use
passive antenna. The input bias voltage will through RF_IN pin to provide active
antenna bias voltage from V_ANT_IN pin.
The maximum power consumption of active antenna is about 100mW
(6) Power:
Connect Vcc pin to DC 3.3V.The power supply must add bypassing capacitor (10uF
and 1uF). It can reduce the Noise from power supply and increase power stability.
Recommended layout PAD
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REB-3310 Operational Manual
GPS Antenna Specification (Recommendation)
Active patch antenna
Receiving freq. 1575.42 +/-1.032MHz
Polarization RHCP
Output impedance 50 Ohm
2 stage LNA
LNA's gain ≧20dB and ≦26dB, noise figure ≦2.0dB
Connection: surface mounted on main PCB
10
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