PixArt Imaging Inc.

PAN301A

CMOS Optical Mouse Sensor

7.3 Typical Application for PS/2 Interface

C1

10uF

C2

0.1uF

SW1

L

1

2

X1

18.432MHz

JP1

HEADER 4

1

2

3

4

R1

D1

LED

ENSW1

ENCODER

1

2

3

Z2

Z1

COM

+

C3

10uF

C6

0.1uF

SW2

M

1

2

U1

PAN301ASI-20X

13

14

17

15

20

1

4

12

10

7

6

18

19

5

2

3

11

8

9

16

XA

XB

NC

NC

PD

VSS_LED

OSCIN

YB

VREFB

VSS

VSS

SCLK

SDIO

NC

LED

OSCOUT

YA

VDD

VREFA

NC

SW3

R

1

2

+

C4

1uF

U2

EM84510FP

2

7

16

5

6

14

12

13

10

9

1

8

15

11

4

3

OSC.OUT

OPT

OSCR

CLK

DATA

Y1

X1

X2

M

R

VDD

VSS

Y2

L

Z2

Z1

C5

0.1uF

R2

51K

DATA

VCC_5V

CLK

GND

Figure 22. Application circuit using quadrature output with PAN301ASI-20X

Figure 23. Example printed circuit board layout. (PAN301ASI-20X V.S EM84510FP)

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PixArt Imaging Inc.

V1.3, MAY. 2004