PixArt Imaging Inc.

PAP7501V

USB2.0 Camera

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PixArt Imaging Inc.

V1.1 May. 2008

1. Pin Assignment

Pin# Name

Type

Description

1

GND33A_PLL_I

GND

Ground for PLL

2

VDD5MA

PWR

5V Power for analog circuit

3

VDD28A_MIC

BYPASS Analog power for Audio MIC, 2.8V

4

VCOM

BYPASS Microphone common mode voltage reference

5

MIC_P

IN

Microphone positive input

6

MIC_N

IN

Microphone negative input

7

VDD33A_PGA

BYPASS Analog power for Audio PGA, 3.3V

8

VSSA

GND

Microphone GND

9

VDD33A_ADC

BYPASS Analog power for Audio ADC, 3.3V

10 VSSQ

GND

Digital ground

11 RSTN

IN

Chip power up reset (Internal pull-up 100Kohm)

12 SEN_CSB

OUT

Chip select of EEPROM

13 KEY

IN

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

14 GPIO4

I/O

General purpose I/O

15 VDD18K

BYPASS Logic power for digit circuit, 1.8V

16 VDD33Q

BYPASS Logic power for digit circuit, 3.3V

17 SEN_CLK

OUT

Clock output for sensor

18 SEN_SCL

OUT

I2C clock

19 SEN_SDA

I/O

I2C data

20 I_VSYNC

IN

Vertical synchronization signal

21 I_HSYNC

IN

Horizontal synchronization signal

22 EPR_CSB

IN

Chip Select of EEPROM

23 EPR_SO

IN

Data out of EEPROM

24 EPR_SI

OUT

Data input of EEPROM

25 EPR_SCK

OUT

Serial clock of EEPROM

26 I_PXD7

IN

Sensor digital data input

27 I_PXD6

IN

Sensor digital data input

28 I_PXD5

IN

Sensor digital data input

29 I_PXD4

IN

Sensor digital data input

30 I_PXD3

IN

Sensor digital data input

31 I_PXD2

IN

Sensor digital data input

32 I_PXD1

IN

Sensor digital data input

33 I_PXD0

IN

Sensor digital data input

34 I_PXCLK

IN

Sensor pixel clock input

35 VDD5MD

PWR

5V power for digit circuit

36 VDDAYS

BYPASS Logic power for digit circuit, 2.5V

37 VDD5MV

PWR

5V power for PHY circuit

38 VSSQ

GND

Digital ground

39 VDD33A_HSRT_O BYPASS Analog power for TX/RX

40 VDD18K

BYPASS Logic power for digit circuit, 1.8V

41 OSC_IN

IN

Crystal input

42 OSC_OUT

OUT

Crystal output

43 VDD33A_HSRT_I

BYPASS Analog power for TX/RX

44 GND33A_HSRT_I

GND

Ground for USB TX/RX

45 RRET

IN

Reference supply current for PHY

46 DM

I/O

DM for USB PHY

47 DP

I/O

DP for USB PHY

48 VDD33A_PLL_I

BYPASS Analog power for PLL