PixArt Imaging Inc.
PAW3203DI
Wireless Optical Mouse Single Chip
5.3 2.7V Application Circuit (with Red LED)
#1. Battery Power Circuit
DC/DC Converter
BAT(1.5V)
VCC_2.7V
VR1
BAT(1.5V)
L1 200uH
VCC_2.7V
LED_2.7V
D2
1N5819
500K
VR2
VOUT
Q1
2N3906
SW
+C1
47uF
BatDetect
+C2
500K
U1
ELM9327
R5
47uF
100K
#2. EEPROM Circuit
U3 24AA02
VCC_2.7V
C5
A0 VCC
A1 WP
A2 SCL
VSS SDA
#3. RF TX Circuit
ISCK
ISDA
0.1uF
R4 10R
VCC_2.7V
+C11
1uF
C8
C10
+
0.1uF
RFosc
1uF
C6
22pF
RFEN
C9
C12
C13
Q2
RFDATA
R2
100pF
100pF
3904
0.1uF
R3 10K
10K
Q3
3904
RFcarrier
#4. Sensor Circuit
U4
VCC_2.7V
BatDetect
RFU
Z1
Z2
1
24
ENSW1
ZY1
ZY2
BL
BATLow
RFU
NC
Z1
Z2
2
3
23
22
Z2
COM
Z1
LKEY
B4
D1
ENCODER
4
21 MKEY
20 RKEY
19 RFEN
18 RFDATA
B4
BM
LED_2.7V
RFcarrier
R1
SW1
5
LKEY
RKEY
MKEY
B4
LED
BR
C18 10pF
6
SW2
SW3
SW4
SW5
SW6
* SW7
OSCOUT
OSCIN
VDDD
VSS
RFEN
RFDATA
RFID
ISDA
ISCK
NC
X1
7
27.042MHZ
RFosc
RFID
8
17
* C19
+C20
1uF
9
16 ISDA
15 ISCK
14
VCC_2.7V
10
11
12
B5
VDD
VDDA
VREF
RFID
RFU
C21 C22 C23
+
B5
13
+
B5
C24
PAW3203DI
10uF 0.1uF 1uF
0.1uF
Note1: Please reserve C19, SW7 for future use
Figure 8. Application Circuit for 2.7V (with Red LED)
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PixArt Imaging Inc.
9
E-mail: fae_service@pixart.com.tw
V0.3 April. 2008
PIXART [ PIXART IMAGING INC. ]
