PAW3203DI Datasheet, PDF (9/14 Pages) Pixart Imaging Inc. – WIRELESS OPTICAL MOUSE SINGLE CHIP

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)
L1 200uH
VCC_2.7V
D2 1N5819
VOUT
LED_2.7V
C1
+
47uF
SW
U1
ELM9327
C2
+
47uF
BAT(1.5V)
VCC_2.7V
VR1
Q1
2N3906
BatDetect
R5
100K
500K
VR2
500K
#2. EEPROM Circuit
U3 24AA02
A0 VCC
A1 WP
A2 SCL
VSS SDA
#3. RF TX Circuit
VCC_2.7V
ISCK
ISDA
RFDATA
R3 10K
VCC_2.7V
C5
0.1uF
RFosc
C6
22pF
Q2
3904
R4 10R
C8
+
1uF
C10
0.1uF
RFEN
C9
0.1uF
RFcarrier
R2
10K
C11
+
1uF
C12
100pF
Q3
3904
C13
100pF
#4. Sensor Circuit
U4
Z1
1 _ZY1
BATLow ²⁴
Z2
2 _ZY2
RFU ²³
LKEY 3 _BL
NC ²²
LED_2.7V
R1
B4
D1
RFcarrier ^{C18 10pF}
RFosc
X1
27.042MHZ
* C19
VCC_2.7V
C20
+
1uF
4 _B4
5 _LED
6 _OSCOUT
7 _OSCIN
8 _VDDD
9 _VSS
10 _VDD
BM ²¹
BR ²⁰
RFEN ¹⁹
RFDATA ¹⁸
RFID ¹⁷
ISDA ¹⁶
ISCK ¹⁵
C21 C22 C23
+
+
10uF 0.1uF 1uF
11 _VDDA
NC ¹⁴
12 _VREF
B5 ¹³
C24
PAW3203DI
0.1uF
BatDetect
RFU
MKEY
RKEY
RFEN
RFDATA
RFID
ISDA
ISCK
B5
VCC_2.7V
ENSW1
Z1
Z2
COM
Z2
Z1
ENCODER
LKEY ^SW1
RKEY ^SW2
MKEY ^SW3
B4 ^SW4
B5 ^SW5
RFID ^SW6
RFU ^{* SW7}
Note1: Please reserve C19, SW7 for future use
Figure 8. Application Circuit for 2.7V (with Red LED)
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9
PixArt Imaging Inc.
E-mail: [e-mail]
V0.3 April. 2008