PixArt Imaging Inc.

PAN301A

CMOS Optical Mouse Sensor

1. Pin Description

Pin No.

Name

Type

Definition

1

VSS_LED

GND

LED ground

2

LED

I/O

LED control

3

OSCOUT

OUT

Resonator output

4

OSCIN

IN

Resonator input

5

NC

-

No connection

6

VSS

GND

Chip ground

7

VSS

GND

Chip ground

8

VDD

PWR

Chip power, 5V power supply

9

VREFA

BYPASS

Analog voltage reference

10

VREFB

BYPASS

Analog voltage reference

11

YA

OUT

YA quadrature output

12

YB

OUT

YB quadrature output

13

XA

OUT

XA quadrature output

14

XB

OUT

XB quadrature output

15

NC

-

No connection

16

NC

-

No connection

17

NC

-

No connection

18

SCLK

IN

Serial interface clock

19

SDIO

I/O

Serial interface bi-direction data

20

PD

IN

Power down pin, active high

1

11

10

20

1

11

10

20

LB

RB

+ X

+ Y

Figure 1. Top view pinout

Figure 2. Top view of mouse

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2

PixArt Imaging Inc.

V1.3, MAY. 2004