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

6

CR-105

GPS Module series THE PRO NAME IN GPS

VBAT 3.0~5.0V

Temperature

Physical

Dimension 18 * 25.15 * 7.9 mm(include GND PLANE)

Antenna

Impedance 50Ω

Output Voltage 2.8VDC

Patch dimension

Connector

Operating

Storage

Humidity

-40℃ to 85℃

-40℃ to 85℃

≦95% , non condensing

Weight 5g

Protection Build-in short circuit and Over current protection

4 types : 15*15*4 mm, 15*15*2 mm, 12*12*4 mm,

18*18*4 mm

FFC Type 8Pin

MMCX Active Antenna connector (option)

2.4 Configuration Information

CR-105 provide 5 configurations because of the different angle of MMCX

connector and different RF interface output voltage.

Model No. Patch size
CR-105-T0A 15*15*4 mm No
CR-105-T0B 15*15*2 mm No
CR-105-T0C 12*12*4 mm No
CR-105-T0D 18*18*4 mm No
CR-105-TEA 15*15*4 mm Yes

MMCX(90∘) connector

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

7

CR-105

GPS Module series THE PRO NAME IN GPS

3. Mechanical Dimension

3.1 Mechanical Dimension

Type : T0A (Patch 15*15*4mm)

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

8

CR-105

GPS Module series THE PRO NAME IN GPS

Type : T0B (Patch 15*15*2mm)

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

9

CR-105

GPS Module series THE PRO NAME IN GPS

Type : T0C (Patch 12*12*4mm)

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

10

CR-105

GPS Module series THE PRO NAME IN GPS

Type : T0D (Patch 18*18*4mm)

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

11

CR-105

GPS Module series THE PRO NAME IN GPS

Type : TEA (Patch 15*15*4mm + 90∘ MMCX connector)

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

12

CR-105

GPS Module series THE PRO NAME IN GPS

3.2 Product photo

The photo is for reference, the real content will depend on the real configuration.

Top side (without MMCX connector) :

Top side (with MMCX connector) :

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

13

CR-105

GPS Module series THE PRO NAME IN GPS

Bottom side (without MMCX connector)

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

14

CR-105

GPS Module series THE PRO NAME IN GPS

4 User Interface

CR-105 provides 2-wire digital UART port for communication of GPS position data

using NMEA protocol or MTK extension protocol. UART port is capable of 4800 to

115200 baud rate.

4.1 Protocol

CR-105 is default to support standard NMEA-0183 protocol. In addition, a series of

MTK extensions (PMTK messages) have been developed that can be used to provide

extended capabilities common to many applications.

4.2 NMEA Protocol

CR-105 is capable of supporting following NMEA formats:

NMEA RECORD Description

GGA GPS fix data

GLL Geographic

GSA GNSS DOP and active satellite

GSV GNSS Satellites in view

RMC Recommended minimum specific GNSS data

VTG Course Over Ground and Ground Speed

ZDA Time&Data

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

15

CR-105

GPS Module series THE PRO NAME IN GPS

4.3 MTK NMEA Packet Format
Preamble TalkerID PktType Data field * CHK1 CHK2 CR LF

Maximum packet length is restricted to 255 bytes

Field Length Type D

Preamble 1 byte Character “$”

TalkerID 4 byte Character string “PMTK”

“000”to “999”, an identifier used

PktType 3 byte Character string

Data Field Variable

* 1 byte Character

CHK1

2 byte Character string

CHK2

CR, LF 2 byte Binary data

to tell the decoder how to decode

the packet

“, ”must be inserted ahead each

data filed to help the decoder

process the Data Field

The star symbol is used to mark

the end of Data Field

checksum of the data between

Preamble “, ”and “*”

used to identify the end of a

packet

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

16

CR-105

GPS Module series THE PRO NAME IN GPS

5. Customer design recommendation

5.1 Recommend Layout Pattern

5.1.1 FFC Connector Layout

5.1.2FFC connector cable

Pitch 0.5mm 8pin Flat Flexible cable

※ Reference connector cable: ENTERY INDUSTRIAL CO.,LTD
※ Product No:A08020C3344NB

5.2 Recommend H/W specification

．Active antenna connector: MMCX connector
．Interface connector: FFC connector
．GND PLANE depends on different Antenna patch size, HOLUX can provide the

customization design.

5.2.1 Antenna

．Use active antenna that work with 2.8V power supply
．Receiving frequency 1.57542GHz±1.032MHz
．Polarization RHCP (right hand circular polarized)
．Output impedance=50Ω
．Noise figure ≦2.0dB
．15dB≦LNA Gain≦20dB

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

17

CR-105

GPS Module series THE PRO NAME IN GPS

5.2.2 Recommend circuit

VDD

C1

C2

10p

2.2uF

VBAT

CR-105

VDD

VBAT

INT1

STANDBY

TXD0

RXD0

HRST

GND

R2
10K

VDD

R1
10K

C3

10p

Note1: VDD (pin8) could connect to3~5Vdc power supply

Note2: VBAT (pin7) could connect to3~5Vdc power supply

Note3: HRST (pin2) active LOW

C4

2.2uF

STANDBY

TXD0

RXD0

HRST

Note4: STANDBY (pin5) active HIGH, enter standby mode

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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