RoyalTek RET-3570LP User Manual

RET-3570LP User Manual

RET-3570LP User Manual

Version 1.1

2007/07/09

This document contains information highly confidential to RoyalTek Company LTD

(RoyalTek). It is provided for the sole 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.

8F, 256 Yang Guang Street, Neihu Chiu,Taipei, Taiwan

TEL: [phone]

FAX: [phone]

http://www.royaltek.com/contact

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RET-3570LP User Manual

Content

1. INTRODUCTION................................................................................................................ 1

RODUCT FEATURES ......................................................................................................... 1

1.1 P

1.2 PRODUCT APPLICATIONS ................................................................................................... 1

1.3 PRODUCT PICTURES AND INTERFACE BOARD .................................................................... 2

1.4 SYSTEM BLOCK DIAGRAM ................................................................................................ 4

1.5 TECHNICAL SPECIFICATION ............................................................................................... 5

1.6 APPLICATION CIRCUIT....................................................................................................... 6

1.7 R

ECOMMENDED LAYOUT PAD.......................................................................................... 8

1.8 MECHANICAL LAYOUT...................................................................................................... 9

1.9 TEST SOFTWARE SPECIFICATION........................................................................................ 9

1.10 HARDWARE INTERFACE................................................................................................. 10

2. SOFTWARE INTERFACE ............................................................................................... 14

3. GPS RECEIVER USER’S TIP ......................................................................................... 18

4. PACKAGE SPECIFICATION AND ORDER INFORMATION .................................. 19

5. CONTACT ROYALTEK ...................................................................................................19

6. REVISION HISTORY....................................................................................................... 19

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RET-3570LP User Manual

1. Introduction

RoyalTek RET-3570LP small form factor board is the newest generation of RoyalTek

GPS plus TMC module. TMC can deliver real-time traffic and travel information to

drivers. The driver can be notified of problems on the planned route, at the same time,

TMC calculates and provide an alternative route to help driver avoid the incident. The

combo module is powered by latest SiRF Star III single chip and RoyalTek

proprietary navigation technology that provides you with stable and accurate

navigation data. The smallest form factor and miniature design is the best choice to be

embedded in a device such as portable navigation device, personal locator, and speed

camera detector and vehicle locator.

1.1 Product Features

 20 parallel channels

 TMC embedded

 TMC frequency 87.5MHz--108MHz

 SMT type with stamp holes

 TCXO design

 0.1 second reacquisition time

 Small form factor with embedded SiRF Star III single chip technology.

 NMEA-0183 compliant protocol/ Royaltek TMC protocol

 Enhanced algorithm for navigation stability

 Excellent sensitivity for urban canyon and foliage environments.

 DGPS (WAAS, EGNOS ) support



Auto recovery while RTC crashes

1.2 Product Applications

 Automotive navigation

 Personal positioning and navigation

 Marine navigation

 Timing application

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~

+

+

<

≤

≤

≤≤≤

≤

≤

≤

RET-3570LP User Manual

1.3 Product Pictures and Interface board

(1) RET-3570LP

(2) RET-3570LP Interface board

Pin 1

The interface board pin definition

J2 CONNECTOR

Pin # Signal Name I/O Description Characteristics

1 N.C
2 N.C

3 Battery I

4 VCC I DC Supply Voltage input

5 Reset I Reset (Active low)

6-10 N.C

11 TXA O Serial port A

12 RXA I Serial port A

13 N.C

14 TXB O Serial port B

Backup voltage supply

10uACurrent

≤

±10%

3.6V

2.5DC

DC +3.3V

>

IH

CMOS TTL level

CMOS TTL Level

CMOS TTL level

8.0 ; 2.3V V

IL

VV

VVVVV

715.0 85.2375.2 ≤

OLOH

OLOH

VVVVV

855.00.3V- 15.3995.1

ILIH

VVVVV

715.0 85.2375.2 ≤

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≤

≤

≤

≤

15 RXB I Serial port B

16 N.C

17 Boot I Boot mode

18 GND G Ground

RET-3570LP User Manual

ILIH

CMOS TTL Level

ILIH

VVVVV

855.00.3V- 15.3995.1 ≤≤

VVVVV

855.00.3V- 15.3995.1 ≤≤

19 N.C

20 N.C

Switch U4

Pin # Signal Name 0/1 Description Characteristics
1 GPIO-0 GPIO input/output Switch:

0: Low 1:High CMOS TTL Level

2 GPIO-4 GPIO input/output Switch:

0: Low 1:High CMOS TTL Level

3 GPIO-15

(N.C for
RET-3570)

GPIO input/output

(N.C for RET-3570)

Switch:
0: Low 1:High CMOS TTL Level
(N.C for RET-3570)

4 PPS PPS output Switch:

0: Low 1:PPS output

5 GPS_3V3 Power supply for

GPS section

6 TMC_3V3 Power supply for

TMC section

Switch:
0: Low 1: DC 3.3V output
Switch:

0: Low 1: DC 3.3V output
7 N.C
8 RF_Bias RF_Bias voltage

switch

0: open. No voltage provide antenna.

1:Provide 2.85V to antenna.

Connector:

Pin # Description Characteristics

J1 GPS RF Connector 1575.42MHz

J5 FM RF Connector 87.5MHz~108MHz

J4 Stereo Jack

Audio output
(Right and Left channel)

RoyalTek Evaluation Kit REV-2000 for RET-3570 LP

(Please refer to RoyalTek Evaluation Kit REV-2000 for RET-3570 Operational Manual for more

information.)

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1.4 System Block Diagram

System block diagram description:

(1) External antenna.

(2) 4 Mega bits flash memory

(3) 31 pin I/O pin

RET-3570LP User Manual

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RL=

=

∆

RET-3570LP User Manual

1.5 Technical Specification

Impedance：50Ω

No Function Specification

GPS receiver

1 Chipset SiRF Star III, GSC3f/LP

(Digital, RF in a single package)
2 Frequency L1 1575.42MHz.
3 Code C.A. Code.
4 Channels 20 parallel
5 Chipset Sensitivity -159dBm.
6 Chipset Cold start @open sky 35 sec
7 Chipset Warm start @open

sky
8 Chipset Hot start @open sky 1 sec
9 Reacquisition 0.1sec typical

10 Position accuracy 10meters at 2D RMS.
11 Maximum altitude 18000 m
12 Maximum velocity 514 m/s
13 Trickle power mode

14 Update rate Continuous operation: 1Hz
15 Testability It shall be able to be tested by SiRF test IV and single channel

16 Protocol setup It shall store the protocol setup in the SRAM memory.
17 DGPS WAAS, EGNOS

Interface

18 LNA No LNA
19 I/O Pin 31pin

TMC/RDS receiver

20 Frequency 87.5~108MHz. US/Europe

21 RDS sensitivity

35 sec

Duty cycle

≦ 34%. (Variable)

simulator.

24.7uV typical

Δf=22.5kHz, fAF = 1kHz,L=R, f　 RDS=1.2kHz,

De-emphasis= 50us,
Block Quality Rate

≧85%

22 Right and Left audio output

voltage

Conditions:

1= ;

mVV

RF

pre-emphasis; usTC

deem

; KHzf 5.22

75=

; KHzf 1

= ; No

mod

Output voltage:
Min= 55 mV
Typ= 66 m V
Max=75mV

Mechanical requirements

23 Weight

≦3.5g

Power consumption

24 Vcc DC 3.3 ±5%

25

Current

GPS:
Fix mode Current 36mA average.
RDS Current: 15mA typical

Environment

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