PixArt Imaging Inc.
PAN3501UI
USB Optical Mouse Sensor Single Chip
5.2 Typical Application for PAN3501UI-PX with Optical Encoder
U1
Z1
1
2
24
23
22
21
20
19
18
17
16
15
14
13
Z1
TEST
RFU
PIN3(SR):
VCC_5V
R2
Z2
RFU
SW1
PULL LOW => -90 degree
PULL HIGH => +90 degree
Z2
0?
0?
BR
3
FLOATING =>
0 degree
SR
BR
R3
IRCTL
BM
D-
R8
R9
4
1M
1M
IRCTL
BM
D-
D+
5
SW2
SW3
PIN7(DT)
D+
PULL LOW => 3D3B
PULL HIGH => 2D2B
FLOATING => 3D5B
VCC_5V
R4
BL
6
BL
OSCOUT
OSCIN
VDDQ
VSS
X1
0?
0?
7
18.000MHZ
DT
R5
VDDQ
C1
SW4
SW5
B4
B5
8
B4
+
PIN10(CPI)
VCC_5V
9
B5
1uf
PULL LOW => 800CPI
PULL HIGH => 600CPI
FLOATING => 400CPI
VCC_5V
+C2
R6
R7
0?
0?
10
11
12
CPI
VSSLED
LED
VDD5V
VREFA
VREFB
VCC_5V
+C4
1uF
C3
C5
0.1uF
10uF
0.1uF
LED
R1
D1
PAN3501UI-PX
VCC_5V
Q1
IRCTL
2N3906
J1
RFU
D-
1
2
3
4
5
D1
IR
U2
PT
D+
VCC_5V
Z1
Z2
USB CABLE
R6
470
R4
5.1K
R5
5.1K
Note:
1. Please connect the RFU pin to USB connector shell for future use,
PAN3501UP used the pin to switch USB or PS/2.
2. For resistor value selection, refer to high or low input
level of Z1 and Z2 in the D.C. Electrical Characteristics table.
The recommended value for R2 is 470ohm.
The recommended value for R3/R4 is 5.1Kohm.
Figure 8. Application circuit for PAN3501UI-PX (Optical Encoder)
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PixArt Imaging Inc.
10
E-mail: fae_service@pixart.com.tw
V1.0, APR. 2005
PIXART [ PIXART IMAGING INC. ]
