CR-105
GPS Module series
THE PRO NAME IN GPS
HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:[email protected] http:www.holux.com.tw
5
2
Technical Description
2.1
Block Diagram
GND
VDD
6
Serial data input
Power in
5
MT3318
4
External interrupt
PATCH ANT
Standby mode setting
Reset
RF
SWITCH
VBAT in
HRST
MMCX
Serial data output
FP
C
CO
NNE
CT
O
R
LNA
V28D
RX0
V28A
TX0
3
Dual LDO
Regalutors
STANDBY
1
1.2V
Regalutors
IN1
SAW
External Ant.
2
8
VBAT
7
2.2
Pin Definition
Pin Pin
Name Type
Function
description
1
GND
I GND
2
HRST
I
System reset, Active low
3
RXD0
I
Serial Data input UART0
4
TXD0
O
Serial Data Output UART0
5
STANDBY
I
Standby Mode Hi: Standby mode, Low: Normal mode(Reserve for
future)
6
INT1
I/O GPIO/External interrupt(Reserve for future)
7
VBAT
I
3 ~ 5 V supply input
8
VDD
I
3 ~ 5 V supply input
I: Input O: Output I/O: Input or Output, Open if not used
