PAC7302LT datasheet(2/24 Pages) PIXART

2 / 24 page

PixArt Imaging Inc.

PAC7301/PAC7302

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PixArt Imaging Inc.

E-mail: fae_service@PixArt.com.tw

V1.4 Nov 2007

3. Pin Assignment

3.1PLCC Package(11.43X11.43)

Pin# Name

Type

Description

MIC_N

Microphone negative input

VSSA_AUDIO GND

Audio analog circuit GND

VDDADC33

BYPASS Audio ADC power ,3.3V

GPI3

General purpose input pin

GPO1

OUT

General purpose output pin

No Connection

TEST2

Test pin. Connect to GND in normal operation mode, internal pull-down

100Kohm

RESET#

Chip power up reset

10 GPI1

General purpose input pin

11 VSSQ

GND

Digital Ground for I/O and PHY, digital core.

12 EPR_DO/TR3 IN

Data out of EEPROM (IO trap pin for PID3, internal pull-up 100Kohm)

13 EPR_DI/TR0

OUT

Data input of EEPROM (IO trap pin for PID0, internal pull-up 100Kohm)

14 EPR_SK/TR2

OUT

Serial clock of EEPROM (IO trap pin for PID2, internal pull-up 100Kohm)

15 EPR_CS/TR1

OUT

Chip select of EEPROM (IO trap pin for PID1, internal pull-up 100Kohm)

16 LED

OUT

LED driver

17 GPI2

General purpose input pin

18 NC

No Connection

19 NC

No Connection

20 EPR_EN

EEPROM enable pin active high

21 AUD_EnH

Audio enable pin, High active, internal pull-up 100Kohm

22 VSSQ

GND

Digital Ground for I/O and PHY, digital core.

23 VDDD

BYPASS Logic power for digital circuit, 1.8V

24 VDDMD5

PWR

5V power for digital circuit

25 VDDQ

BYPASS Power for I/O and PHY, 3.3V

26 OSC_OUT

OUT

Crystal output

27 OSC_IN

Crystal input

28 DN

I/O

DN for USB1.1 PHY

29 DP

I/O

DP for USB1.1 PHY

30 NC

No Connection

31 NC

No Connection

32 GPO2

OUT

General purpose output pin, internal pull-up 100Kohm, reserve VID

33 KEY#

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

34 VSSA

GND

Analog ground

35 VSSAY

GND

Sensor ground

36 VDDA

BYPASS Analog power for Video PGA/ADC 2.5V

37 VDDAYM

BYPASS Analog power for sensor CDS 2.5V

38 VDDAY

BYPASS Analog power for sensor array 2.5V

39 VDDA33

BYPASS Analog power output 3.3V(for 2.5 regulator use)

40 VDDMA5

PWR

5V power for video analog circuit

41 TEST1

Test pin. Connect to GND in normal operation mode, internal pull-down

100Kohm

42 NC

No Connection

43 NC

No Connection

VDDMA5_AU

PWR

5V power for analog audio circuit

45 VDDPGA33

BYPASS Analog power output for audio PGA 3.3V

46 VCOM

BYPASS Microphone common mode voltage reference(audio power)

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