PixArt Imaging Inc.
PAN3501UI
USB Optical Mouse Sensor Single Chip
5. Referencing Application Circuit
5.1 Typical Application for PAN3501UI with Mechanical Encoder
ENSW1
VCC_5V
VCC_5V
R2
R3
0?
0?
3
U1
2
1
1
2
3
4
Z1
Z2
SR
IRCTL
BM
BL
DT
B4
B5
CPI
VSSLED
LED
TEST
RFU
BR
D-
D+
OSCOUT
OSCIN
VDDQ
VSS
VDD5V
VREFA
VREFB
24
23
22
21
20
19
18
17
16
15
14
13
+
ENCODER
Z1
COM
Z2
RFU
SW1
D-
D+
R8
R9
BR
1M
1M
PIN3(SR):
PULL LOW => -90 degree
PULL HIGH => +90 degree
FLOATING =>
0 degree
SW2
VCC_5V
R4
R5
SW3
0?
0?
SW4
VCC_5V
R6
R7
0?
0?
VCC_5V
R1
D1
SW5
BM
BL
5
6
7
X1
18.000MHZ
VDDQ
+
PIN7(DT)
PULL LOW => 3D3B
PULL HIGH => 2D2B
FLOATING => 3D5B
B4
B5
8
9
10
11
12
C1
1uF
VCC_5V
PIN10(CPI)
PULL LOW => 800CPI
PULL HIGH => 600CPI
FLOATING => 400CPI
C4
C3
+
C2
10uF
LED
C5
0.1uF
1uF 0.1uF
PAN3501UI
RFU
D-
D+
J1
1
2
3
4
5
VCC_5V
USB CABLE
Note:
Please connect the RFU pin to USB connector shell
PAN3501UP used the pin to switch USB or PS/2.
for future use,
Figure 7. Application circuit for PAN3501UI (Mechanical Encoder)
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9
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
V1.0, APR. 2005
PIXART [ PIXART IMAGING INC. ]
