PAW3501UI Datasheet, PDF (9/14 Pages) Pixart Imaging Inc. – USB OPTICAL MOUSE SENSOR SINGLE CHIP

PixArt Imaging Inc.
PAW3501UI
USB Optical Mouse Sensor Single Chip
6. Referencing Application Circuit
6.1 Typical Application for PAW3501UI with Mechanical Encoder
VCC_5V
R2
R3
ENSW1
ENCODER
VCC_5V
Z1 ²
3
COM
Z2
1
0?
0?
SW2
BM
VCC_5V
SW3
BL
R4 0?
R5 0?
SW4
B4
VCC_5V
SW5
B5
R6 0?
R7 0?
VCC_5V
R1 D1 LED
U1
1 _Z1
2 _Z2
3 _SR
4 _IRCTL
5 _BM
TEST ²⁴
RFU ^{23 RFU}
BR ^{22 SW1}
D- ^{21 D-}
R8
D+ ^{20 D+}
R9
BR
1M
1M
6 _BL
7 _DT
8 _B4
9 _B5
10 _CPI
OSCOUT ¹⁹
OSCIN ¹⁸
VDDQ ¹⁷
VSS ¹⁶
VDD5V ¹⁵
X1
18.000MHZ
VDDQ
+ ^C1
1uF
VCC_5V
11
VSSLED
14
VREFA
12 _LED
VREFB ¹³
PAW3501UI
C4
+
C5 _1uF
0.1uF
C3
0.1uF
C2
+
10uF
PIN3(SR):
PULL LOW => -90 degree
PULL HIGH => +90 degree
FLOATING => 0 degree
PIN7(DT)
PULL LOW => 3D3B
PULL HIGH => 2D2B
FLOATING => 3D5B
PIN10(CPI)
PULL LOW => 800CPI
PULL HIGH => 600CPI
FLOATING => 400CPI
RFU
D-
D+
VCC_5V
J1
1
2
3
4
5
USB CABLE
Note:
Please connect the RFU pin to USB connector shell
PAW3501UP used the pin to switch USB or PS/2.
for future use,
Figure 6. Application Circuit for PAW3501UI (Mechanical Encoder)
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9
PixArt Imaging Inc.
E-mail: [e-mail]
V2.1 April. 2008