Table of Contents
Advertisement
GPS
Product series
7. Ordering Information
7.1 Products Options
Model No.
GR-88-A
GR-88-B
Appendix A : Reference Design
Fig A-1 is GR-88 connects to RS-232 transceiver solutions intended for
portable or hand-held applications such as notebook and palmtop computers.
VCC_IN(15)
GND(14)
DV15
DV15(16)
active antenna
TXDA(6)
RXDA(5)
RXDB(4)
RFIN(27)
GND(28)
GR-88 engine board
GND
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:info@holux.com.tw Website:www.holux.com.tw
RF interface output voltage (V)
RF antenna power 2.8 VDC from GR-88
RF antenna power supply from ANTPWR
VCC
2
C2
0.1uF
4
5
C3
0.1uF
6
TXDA
13
12
RXDA
15
RXDB
10
1
VCC
14
20
C4
0.1uF
GND
GND
GND
(Fig A-1)
With HOLUX, You never lose the way!
VCC
U1
SP3223EEA-SSOP20
C1
19
1
C1+
VCC
C5
C1-
3
1
V+
C6 0.1uF
C2+
7
1
V-
C2-
17
T1_TTL
T1_232
8
T2_TTL
T2_232
16
R1_TTL
R1_232
DGPSIN
9
R2_TTL
R2_232
11
EN
INVALID
ON
18
OFF
GND
0.1uF
2
GND
0.1uF
CON/DB9/90D/F
2
2
GND
1
6
2
7
3
8
4
9
5
J26
GND
22
Advertisement
Table of Contents
