RoyalTek REB-3310 Manuale utente

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

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

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

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

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)

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

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:

Current [email protected] typical (w/o ext. antenna)

22 Trickle power mode Average current ≦[email protected] typical (w/o ext. Antenna)

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

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

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

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

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