PAW3203DI Datasheet, PDF (8/14 Pages) Pixart Imaging Inc. – WIRELESS OPTICAL MOUSE SINGLE CHIP

PixArt Imaging Inc.
PAW3203DI
Wireless Optical Mouse Single Chip
5.2 1.8V Application Circuit (with IR LED)
#1. Battery Power Circuit
Optional power source: A or B
A. DC/DC Converter
BAT_1.5V
BAT_1.5V
L2 220uH
IR_1.8V
VCC_1.8V
D2 1N5819
VR1
VCC_1.8V
+
C30
47uF
VOUT
SW
100K
+
C31 VR2
100uF
Q1
2N3906
BatDetect
R7
U1
ELM9318
100K
100K
B. Regulator
VIN PAD
BAT_3.0V
U5
ELM9818
IR_1.8V
VCC_1.8V
+
C32
22uF
+
C33
22uF
BAT_3.0V
R1
170K
R2
470K
VCC_1.8V
Q1
2N3906
BatDetect
R8
100K
#2. EEPROM Circuit
U3 24AA02
A0 VCC
A1 WP
A2 SCL
VSS SDA
#3. RF TX Circuit
VCC_1.8V
ISCK
ISDA
RFDATA
R3 10K
VCC_1.8V
C5
0.1uF
RFosc
C6
22pF
Q2
3904
R4 10R
C8
+
1uF
C10
0.1uF
C11
+
1uF
RFEN
C9
0.1uF
RFcarrier
R5
10K
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
IR_1.8V
B4
R6
D1
RFcarrier ^{C18 10pF}
RFosc
X1
27.042MHZ
* C19
VCC_1.8V
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_1.8V
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 7. Application Circuit for 1.8V (with IR LED)
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PixArt Imaging Inc.
E-mail: [e-mail]
V0.3 April. 2008