RoyalTek REB-3300 User 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 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-3300 Operational Manual

RoyalTek GPS Module: REB-3300 Operational Manual

INTRODUCTION.................................................................................................................... 3

PRODUCT FEATURES ....................................................................................................…. 3

PRODUCT APPLICATIONS .................................................................................................. 3

PRODUCT PICTURE................................................................................................................ 4

REB-3300 SERIES SYSTEM BLOCK DIAGRAM.................................................................. 5

REB-3300 TECHNIQUE SPECIFICATION..........................................................................…. 6

APPLICATION CIRCUIT .....................................................................................………….. 7

RECOMMENDED LAYOUT PAD ............................................................................………….. 8

GPS ANTENNA SPECIFICATION .......................................................................................….9

MECHANICAL LAYOUT .......................................................................................……….…...10

HARDWARE INTERFACE …….............................................. ................................................11

DEFINITION OF PIN ASSIGNMENT ........................................................ ......................……12

TEST SOFTWARE SPECIFICATION ..............……......................................... ......................14

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-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 position and navigation like personal locator,

speed camera detector and vehicle locator. The excellent sensitivity of REB-3300 gets the

great performance when going though the urban canyon and foliage.

Product Features

 12 parallel channels

 Operable from 3.3V/65mA 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

Optional

 SiRFStarII normal version firmware

 SiRFStarII enhance(ES) version firmware



XTrac 2.0 high sensitivity(HS) version firmware

Product applications

 Automotive navigation

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)

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

REB-3300 Operational Manual

REB-3300 Technique Specification

Impedance：50Ω

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)

6 Sensitivity (Cold Start) 36 dBHz (SSII normal version software)

7 Sensitivity (Warm Start) 36 dBHz (SSII normal version software)

8 Cold start 45sec typical (SSII normal version software, Open sky)

9 Warm start 38sec typical (SSII normal version software, Open sky)

10 Hot start 8 sec. typical (SSII normal version software, Open sky)

11 Reacquisition 0.1sec typical 12 Clock drift

13 Clock offset 14 Position accuracy 15 Maximum altitude 18000 m

16 Maximum velocity 514 m/s 17 Trickle power mode

18 Update rate Continuous operation: 1Hz 19 Navigation filter

20 Testability It shall be able to be tested by SiRF test II and single channel

22 Protocol setup It shall store the protocol setup in the SRAM memory. 23 DGPS 1.WAAS, EGNOS

Interface

24 LNA

25 I/O Pin 30pin stamp holes

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)

33 dBHz (SSII ES version software) 32 dBHz (SSII XTrac version software)

33 dBHz (SSII ES version software) 28 dBHz (SSII XTrac version software)

75sec typical (SSII ES version software, Open sky) 45sec typical (SSII XTrac version software, Open sky)

40sec typical (SSII ES version software, Open sky) 35sec typical (SSII XTrac version software, Open sky)

18 sec. typical (SSII ES version software, Open sky) 4 sec. typical (SSII XTrac version software, Open sky)

≦ 200Hz in 60 sec 90000Hz≦Clock offset≦100000Hz ≦25m CEP.

Duty cycle ≦ 34%. (Variable)

Default: disable(option: enable)

It shall freeze the navigation update when speed ≦

2.5 km/hr

simulator.

2.RTCM protocol

On board LNA :

a. Gain ≧14dB

b. N.F. < 2dB

REB-3300 Operational Manual

Mechanical requirements

26 Weight

Power consumption

27 Vcc DC 3.3 ±5% 28 Current REB3300:

29 Trickle power mode 30 Power down mode current 1. It means that the GPS receiver is in power down mode.

Environment

31 Operating temperature 32 Humidity 33 Interface Protocol 1. NMEA 0183 ver 3.0, GGA, GSA, RMC and GSV once per

Application Circuit

≦3.5g

Current ≦65mA@3.3V typical (w/o ext. antenna) Average current ≦ 65mA. (IO float)

2. Current ≦800μA.

-40 ~ 85℃ ≦95%

2. SiRF Protocol

3. 4800 bps, 8 data bits, no parity, 1 stop bits

(1) Ground Planes:

REB-3300 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

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 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-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

Mechanical Layout

REB-3300 Operational Manual

Mechanical re

1 REB-3300

2Wei

uirements

項次料號

1T0SBN25**

1T0SBN26**

PSB*01****

NSB0000A**

Len

th= 25.4 mm

Width= 25.4 mm

hickness= 3mm

3.5g

品名備註 SHIELD-RF SHIELD-LNA M-PCB REB-3300 V*.* REB-3300 M-PCB (SMD)

Hardware interface

REB-3300 Operational Manual

Definition of Pin assignment

Pin # Signal Name I/O Description Characteristics

1 VCC I DC Supply Voltage

input 2 GND G Ground Digital Reference Ground 3 Bootselect I Boot mode

4 RXA I Serial port A

5 TXA O Serial port A

6 TXB O Serial port B

7 RXB I Serial port B

8 GPIO3 I/O General –purpose I/O

9 RF_ON O Indicates power state

of RF part 10 GND G Digital Ground Digital Reference Ground 11

GND_A G Analog Ground Analog Reference Ground

| 16 17 RF_IN I GPS Signal input 50 Ω @1.57542GHz 18 GND_A G Analog Ground Analog Reference Ground 19 V_ANT_IN I Active Antenna Bias

voltage

20 VCC_RF O Supply Antenna Bias

voltage

21 V_BAT I Backup voltage supply

22 Reset I Reset (Active low) 23 GPIO10 I/O General purpose I/O

DC +3.3V±10%

ILIH

OLOH

ILIH

≤≥

ILIH

≤≥

OLOH

Receiving DC power supply for active antenna bias.

±0.3

0.3

3.6V~2.6 DC

≤

battery) (w/o10uA Current

8.0 2.3V V

≤≥

ILIH

VVVV

4.0 4.2

≤≥

OLOH

VCCVVVCCVV

*3.0 *7.0 ≤≥

VCCVVVCCVV

*3.0 *7.0 ≤≥

VVVV

4.0 4.2 ≤≥

VVVV

4.0 4.2 ≤≥

VCCVVVCCVV

*3.0 *7.0 ≤≥

VCCVVVCCVV

*3.0 *7.0

VVVV

4.0 4.2

VVVV

0 85.2 =

VCCVVVCCVV

*3.0 *7.0

REB-3300 Operational Manual

24 GPIO6 I/O General purpose I/O

25 GPIO5 I/O General purpose I/O

26 GPIO7 I/O General purpose I/O

27 GPIO13 I/O General purpose I/O

28 GPIO15 I/O General purpose I/O

29 PPS O One pulse per second 30 GND G Digital Ground Digital Reference Ground

≤≥

ILIH

≤≥

OLOH

Definition of Pin assignment

VCC(+3.3V DC power Input)

This is the main DC power supply input pin. It provides voltage to module.

GND

GND provides the ground for digital part.

VCCVVVCCVV

≤≥

ILIH

≤≥

OLOH

≤≥

ILIH

≤≥

OLOH

≤≥

ILIH

≤≥

OLOH

≤≥

ILIH

≤≥

OLOH

4.0 4.2

*3.0 *7.0

VVVV

4.0 4.2 *3.0 *7.0

VVVV

4.0 4.2 *3.0 *7.0

VVVV

4.0 4.2 *3.0 *7.0

VVVV

4.0 4.2

VCCVVVCCVV

*3.0 *7.0

VVVV

4.0 4.2 ≤≥

VCCVVVCCVV

Bootselect

Set this pin to high for programming flash.

RXA

This is the main receiver channel and is used to receive software commands to

the board from SIRFdemo software or from user written software.

PS: Pull up if not used.

RXB

This is the auxiliary receiving channel and is used to input differential

corrections to the board to enable DGPS navigation.

PS: Pull up if not used.

TXA

This is the main transmitting channel and is used to output navigation and

measurement data to SiRFdemo or user written software.

TXB

For user’s application (not currently used).

RF_ON

This pin indicates state of RF voltage.

RF_IN

This pin receiver signal of GPS analog .due to the RF characteristics of the

signal the design has to certain criteria. The line on the PCB from the

REB-3300 Operational Manual

antenna(or antenna connector) has to be a controlled impedance line

(Microstrip at 50Ω).

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 causes the board to

reset and start searching for satellites. If not utilized, it may be left open.

PPS

This pin provides one pulse-per-second output from the board, which is

synchronized to GPS time. This is not available in Trickle Power mode.

Backup battery (V_BAT)

This is the battery backup input that powers the SRAM and RTC when main

power is removed. Typical current draw is 10uA.

Without an external backup battery or super cap, the TMP will execute a cold

start after every power on. To achieve the faster start-up offered by a hot or

warm start, either a battery backup must be connected or a super cap installed.

To maximize battery lifetime, the battery voltage should not exceed the supply

voltage and should be between 2.5V and 3.6V.

With the super cap (B1) installed, and after at least ten minutes of continuous

operation, the data retention is about seven hours.

Note that even though all other components are rated at –40 to +85 deg C , a

typical super cap is specified over a temperature range of –25 to +70 deg C and

a typical rechargeable Lithium battery is over –20 to +70 deg C.

GPIO Functions

Several I/Os are connected to the digital interface connector for custom

applications.

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°

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

Table 1 NMEA-0183 Output Messages

NMEA Record Des cription

GGA Global positioning system fixed data

GLL Geographic position – latitude / longitude

GSA GNSS DOP and active satellites

GSV GNSS satellites in view

RMC Recommended minimum specific GNSS data

VTG 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 161229.487 hhmmss.sss

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 or W=west

Position Fix Indicator 1 See Table 2-1

Satellites Used 07 Range 0 to 12

HDOP 1.0 Horizontal Dilution of Precision

MSL Altitude 9.0 meters

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

＜CR＞＜LF＞

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 following

Example: $GPGLL, 3723.2475, N, 12158.3416, W, 161229.487, A*2C

Table 3 GLL Data Format

Name Example Units Description

Message ID $GPGLL GLL protocol header

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 or W=west

UTC Position 161229.487 hhmmss.ss

Status A A=data valid or V=data not valid

Checksum *2C

＜CR＞＜LF＞

End of message termination

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 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 1.0 Horizontal Dilution of Precision

VDOP 1.5 Vertical Dilution of Precision

Checksum *33

＜CR＞＜LF＞

End of message termination

Table 4-1 Mode 1

Value Description

1 Fix not available

2 2D

3 3D

Table 4-2 Mode 2

Value Description

M Manual-forced to operate in 2D or 3D mode

A Automatic-allowed to automatically switch 2D/3D

GSV-GNSS Satellites in View

Table 5 contains the values of 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

REB-3300 Operational Manual

Table 5 GGA Data Format

Name Example Units Description

Message ID $GPGSV GSV protocol header

Number of

Messages1

Messages Number1 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

…. ….

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

Checksum *71

2 Range 1 to 3

tracking

＜CR＞＜LF＞

Depending on the number of satellites tracked multiple messages of GSV data may be required.

End of message termination

RMC-Recommended Minimum Specific GNSS Data

Table 6 contains the values of the following example:

$GPRMC, 161229.487, A, 3723.2475, N, 12158.3416, W, 0.13, 309.62, 120598, ,*10

Table 6 GGA Data Format

Name Example Units Description

Message ID $GPRMC RMC protocol header

UTC Position 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 or W=west

Speed Over Ground 0.13 knots

REB-3300 Operational Manual

Course Over

Ground

Date 120598 ddmmyy

Magnetic Variation degrees E=east or W=west

Checksum *10

＜CR＞＜LF＞

309.62 degrees True

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 heading

Reference M Magnetic

Speed 0.13 knots Measured horizontal speed

Units N Knots

Speed 0.2 km/hr Measured horizontal speed

Units K Kilometer per hour

Checksum *6E

＜CR＞＜LF＞

End of message termination

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 the shortest time.

3. The following situation will affect the GPS receiving performance:

a. Solar control filmed windows.

b. Metal shielded, such 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 put the antenna on

outdoor or the roof of the vehicle for better receiving performance.

b. Move to another open space or reposition GPS receiver toward the direction with less

blockage.

c. Move the GPS receiver away from the interferences resources.

d. Wait until the weather condition is improved.

5. While a GPS with a backup battery, the GPS receiver can fix a position immediately at next

power-on if the build-in backup battery is full-recharged.

REB-3300 Operational Manual

RoyalTek

MTBP Estimation

MTBF > 10000 hours

Package Specification and Order Information

Shipment Method: Tape and reel

S/W V ersion Package

12label

REB-3300 0. Standard 0. Customize 0. Standard

1.ES

1. GG A ,GSA ,G S V ( 5 ),R MC,4 8 0 0

2.XTRAC

3. GGA,GSA,GSV(5),RMC,57600

4. RMC,9600

Protocol

ontact Information Section

Contact : sales@royaltek.com



Headquarter:

d ang Guang Street, Neihu Chiu, Taipei, Taiwan, R.O.C.

ress: 8F, 256 Y

886-2-77215000

: 886-277215666

Web Site: http://www.

Web Site Customer Service: http:/

evision History

oyaltek.com

/www.royaltek.com/contact

REB-3300 Operational Manual

RoyalTek

Title REB-3300 GPS Receiver Module

Doc Type User Manual Revision

Number

0.1 7.Sep 2004 en B Initial version

0.5 15 Oct 2004 Ben First release

1.0 24 Nov 2004 Ben Application circuit, package antenna specification

Date Author Change notice

RoyalTek REB-3300 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Product applications

Mechanical Layout

Pin # Signal Name I/O Description Characteristics

VCC(+3.3V DC power Input)

Bootselect

RF_ON

RF_IN

V_ANT_IN

VCC_RF

Reset

Backup battery (V_BAT)

GPIO Functions

GGA-Global Positioning System Fixed Data

GLL-Geographic Position –Latitude/Longitude

GSA-GNSS DOP and Active Satellites

GSV-GNSS Satellites in View

RMC-Recommended Minimum Specific GNSS Data

VTG-Course Over Ground and Ground Speed

GPS Receiver User’s Tip