PixArt Imaging Inc.

PAS109B

CMOS Image Sensor IC

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2

PixArt Imaging Inc.

V1.1, Mar. 2002

1. Pin Assignment

7

VDDY1

BYPASS

Reference voltage

Pin#

Name

Type

Description

Power Supply

28

VDDD

P

Digital VDD

27

GNDD

P

Digital Ground

3

VDDA

P

Analog VDD

2

GNDA

P

Analog Ground

19

VDDQ

P

Digital VDD

18

GNDQ

P

Digital Ground

1

GNDE

P

Ground

Data Interface

17

D0

O

Pixel data output, LSB

16

D1

O

Pixel data output

15

D2

O

Pixel data output

12

D3

O

Pixel data output

11

D4

O

Pixel data output

10

D5

O

Pixel data output

9

D6

O

Pixel data output

8

D7

O

Pixel data output, MSB

22

PXCK

O

Pixel clock output

23

HSYNC

O

Horizontal Synchronization clock

24

VSYNC

O

Vertical Synchronization clock

Analog pin

6

VRT

I/O

ADC reference voltage, top level

4

VCM

I/O

Common mode voltage reference

5

VRB

I/O

ADC reference voltage, bottom level

I

25

SCL

I

I2C interface clock

26

SDA

I/O

I2C interface bi-direction data

Misc. Pins

30

CSB

I

Chip select bar, active low

20

SYSCLK

I

System clock input pin

14

VLRST

BIAS

Fixed bias input voltage

13

NC

-

Not connected

21

NC

-

Not connected

29

NC

-

Not connected

31

NC

-

Not connected

32

NC

-

Not connected