PAC7301 datasheet(4/24 Pages) PIXART

4 / 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

3.3CSPPackage

Pin# Name

Type

Description

GPO1

OUT

General purpose output pin

VDDADC33

BYPASS Audio ADC power ,3.3V

MIC_N

Microphone negative input

VDDMIC28

BYPASS Analog MIC reference audio power 2.8V

VDDPGA33

BYPASS Analog power output for audio PGA 3.3V

VDDMA5_AU

PWR

5V power for analog audio circuit

RESET#

Chip power up reset

GPI3

General purpose input pin

VSSA_AUDIO GND

Audio analog circuit GND

10 MIC_P

Microphone positive input

11 VDDMA5

PWR

5V power for video analog circuit

12 VDDA33

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

13 VSSQ

GND

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

14 GPI1

General purpose input pin

15 VCOM

BYPASS Microphone common mode voltage reference(audio power)

16 VDDAY

BYPASS Analog power for sensor array 2.5V

17 VDDAYM

BYPASS Analog power for sensor CDS 2.5V

18 EPR_DI/TR0

OUT

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

19 EPR_SK/TR2

OUT

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

20 EPR_DO/TR3 IN

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

21 VDDA

BYPASS Analog power for Video PGA/ADC 2.5V

22 KEY#

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

23 VSSAY

GND

Sensor ground

24 EPR_CS/TR1

OUT

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

25 LED

OUT

LED driver

26 VDDD

BYPASS Logic power for digital circuit, 1.8V

27 VDDQ

BYPASS Power for I/O and PHY, 3.3V

28 OSC_IN

Crystal input

29 VSSA

GND

Analog ground

30 EPR_EN

EEPROM enable pin active high

31 VSSQ

GND

Ground for I/O and PHY

32 VDDMD5

PWR

5V power for digital circuit

33 OSC_OUT

OUT

Crystal output

34 DN

I/O

DN for USB1.1 PHY

35 DP

I/O

DP for USB1.1 PHY

3.4LGAPackage

Pin# Name

Type

Description

GPO1

OUT

General purpose output pin

VDDADC33

BYPASS Audio ADC power ,3.3V

VSSA_AUDIO GND

Audio analog circuit GND

MIC_N

Microphone negative input

MIC_P

Microphone positive input

VDDMIC28

BYPASS Analog MIC reference audio power 2.8V

VCOM

BYPASS Microphone common mode voltage reference(audio power)

VDDPGA33

BYPASS Analog power output for audio PGA 3.3V

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