PixArt Imaging Inc.

PAC7311

VGA PC Camera Single-Chip

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PixArt Imaging Inc.

V1.5 Oct. 2005

1.2CSPPackage

Pin# Name

Type

Description

1 NC

-

No Connection

2 VRB

BYPASS Analog voltage reference

3 VCM

BYPASS Analog voltage reference

4 VRT

BYPASS Analog voltage reference

5 VDDA

BYPASS Analog power for AD/DA/PGA, 2.5V

6 VDDAY

BYPASS Sensor reset power reference

7 EPR_DO

IN

Data output of EEPROM

8 VSSQ

GND

Ground for I/O and PHY

9 VDDQ

BYPASS Power for I/O and PHY

10 EPR_CS/TR2 OUT

11 EPR_CK/TR3 OUT

12 EPR_DI/TR1

OUT

13 VSSAY

GND

Sensor ground

14 GPI/TR0

OUT

15 LED

OUT

LED driver

16 EPR_EN

IN

Enable signal of EEPROM (1: enable, 0: disable), internal pull-down 100Kohm

17 IOTRAP#

IN

I/O trap enable signal (0: enable, 1: disable, internal pull-down 100Kohm)

18 KEY#

IN

Snapshot control signal (Active Low, internal pull-up 100Kohm)

19 NC

-

No Connection

20 VSSQ

GND

Ground for I/O and PHY

21 VDDD

BYPASS Logic power for mixed-mode circuit, 2.5V

22 PWR_5V

PWR

Main power, USB bus power

23 VDDQ

BYPASS Power for I/O and PHY

24 GPIO

IO

General purpose input/output, internal pull-down 100Kohm

25 TEST

IN

Test pin. Connect to GND in normal operation mode

26 RESET#

IN

Chip power up reset

27 VSSQ

GND

Ground for I/O and PHY

28 XOUT

OUT

Crystal output

29 XIN

IN

Crystal input

30 DP

I/O

DP for USB1.1 PHY

31 DN

I/O

DN for USB1.1 PHY

32 VDDQ

BYPASS Power for I/O and PHY, 3.3V

33 VDDP

BYPASS Analog power for PLL

34 VDDAD

BYPASS Analog voltage reference power for core logic, 2.5V

35 VDDAV

BYPASS Analog voltage reference

36 VSSA

GND

Analog ground

37 PWR_5V

PWR

Main power, USB bus power