Holux CR‐105 SPECIFICATION

GPS RECEIVER MODULE

CR‐105
SPECIFICATION



1F, No. 30, R&D Rd. II, HsinChu City 300, Science-based Industrial Park, Taiwan

(300) 新竹市科學園區研發二路 30 號 1 樓

TEL: [phone] FAX: [phone]

Website: www.holux.com

Version : 1.2

All Right Reserved

CR-105

GPS Module series THE PRO NAME IN GPS

Version change history

Version Date Revised Reason

0.1 2007/4/19 Draft release

0.2 2007/05/31 Add product photo

1.0 2007/06/27 Official release

1.1 2007/09/04 Modify section 3. ME drawing

1.2 2007/11/05 Add T0D in section 2.4 and 3.

HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

2

CR-105

GPS Module series THE PRO NAME IN GPS

Outline

1. Introduction..........................................................................................................4

1.1 General introductions..............................................................................4

1.2 Key Features.............................................................................................4

1.3 Applications..............................................................................................4

2 Technical Description .......................................................................................... 5

2.1 Block Diagram..........................................................................................5

2.2 Pin Definition............................................................................................ 5

2.3 Specification..............................................................................................6

2.4 Configuration Information ......................................................................7

3. Mechanical Dimension.............................................................................................8

3.1 Mechanical Dimension.............................................................................8

3.2 Product photo.........................................................................................13

4 User Interface.....................................................................................................15

4.1 Protocol....................................................................................................15

4.2 NMEA Protocol.......................................................................................15

4.3 MTK NMEA Packet Format..................................................................16

5. Customer design recommendation....................................................................... 17

5.1 Recommend Layout Pattern.................................................................17

5.1.1 FFC Connector Layout..................................................................17

5.1.2 FFC connector cable...................................................................... 17

5.2 Recommend H/W specification.............................................................17

5.2.1 Antenna......................................................................................... 17

5.2.2 Recommend circuit......................................................................18

HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

3

CR-105

GPS Module series THE PRO NAME IN GPS

1. Introduction

1.1 General introductions
CR-105 is an ultra miniature 18 * 25.15 * 7.9 mm GPS receiver module integrated

with patch built in low power consumption MTK GPS solution. It provides superior

sensitivity up to -159dBm and fast Time-To-First-Fix in navigation application. The

stable performance of CR-105 is your best choice to be embedded in your portable

device design, like PDA、PND、mobile phone、Digital Camera for GPS service.

1.2 Key Features

‧ small form factor: 18 * 25.15 * 7.9 mm(with 15*15*4 patch)
‧ RoHS/WEEE compliant
‧ High sensitivity -159dBm
‧ Searching up to 32 Channel of satellites
‧ Fast Position Fix
‧ Low power consumption
‧ EE Design benefit for customer

1.3 Applications

‧ Automotive and Marine Navigation
‧ Automotive Navigator Tracking
‧ Emergency Locator
‧ Geographic Surveying
‧ Personal Positioning
‧ Sporting and Recreation
‧ Embedded applications
‧ Smart phone, UMPC, PND, MP4

HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

4

CR-105

GPS Module series THE PRO NAME IN GPS

2 Technical Description

2.1 Block Diagram

V28A

Dual LDO
Regalutors

External Ant.

PATCH ANT

LNA

MMCX

SAW

RF
SWITCH

V28D

1.2V
Regalutors

MT3318

8

VDD

7

VBAT

6

IN1

5

STANDBY

4

TX0

3

RX0

2

HRST

1

GND

FPC

CONNECTOR

Power in

VBAT in

External interrupt

Standby mode setting

Serial data output

Serial data input

Reset

2.2 Pin Definition

Pin Pin Name Type Function description

1

2

3

4

5

GND
HRST
RXD0
TXD0

STANDBY

I GND

I System reset, Active low

I Serial Data input UART0

O Serial Data Output UART0

I Standby Mode Hi: Standby mode, Low: Normal mode(Reserve for

future)

6

7

8

INT1
VBAT

VDD

I/O GPIO/External interrupt(Reserve for future)

I 3 ~ 5 V supply input

I 3 ~ 5 V supply input

I: Input O: Output I/O: Input or Output, Open if not used

HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

5

CR-105

GPS Module series THE PRO NAME IN GPS

2.3 Specification

General

GPS technology MTK GPS chipset

Frequency L1,1575.42MHz

C/A Code 1.023MHZ chip rate

Channels 32 channels all in view searching

Sensitivity Better than -159dBm

Receiver Accuracy

Position

Velocity Without aid:0.1M/sec

Time

Datum

Datum WGS84(Default) total 219 datums

Time to First Fix

Hot start 1 sec average

Warm start 33 sec average

Without aid:3.0 M 2D-RMS

DGPS(WAAS, EGNOS, MSAS, RTCM):2.5m

0.1μs. Sync GPS time

(Follow MTK chip specification)

Cold start 36 sec average

Reacquisition

Protocol

＜1sec

NMEA0183(v3.1)- GGA,GLL,GSA,GSV,RMC,VTG

GPS Output Data

Support Baud rate 4800/9600/…./115200 bps (default 4800),

Data bit:8,Stop bit:1, No parity

Update Rata 1Hz(default)

Protocol Support NMEA-0183

1PPS
Limitations

Acceleration Limit

Altitude Limit

Velocity Limit

Enable(1Hz pulse 10% duty cycle)

＜4G

＜18000 meters

＜515 M/sec

Jerk Limit 20 M/sec3

Power

Operation Current Acquisition:65 mA@3.3V

Operation Current

Tracking:＜35mA@3.3V

DC Input Range VCC 3.0~5.0V

HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: [phone] FAX:[phone] E-mail:[e-mail] http:www.holux.com.tw

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