C0402C225M9PAC 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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C0402C225M9PAC

Ultra Low Power CODEC for Portable Audio Applications

Wolfson Microelectronics plc 

Production Data

WM8903

PIN DESCRIPTION

PIN

NAME

TYPE

1

DGND

Supply

2

MCLK

Digital Input

3

GPIO2/

Digital Input/Output

DMIC_DAT

4

GPIO1/

Digital Input/Output

DMIC_LR

5

INTERRUPT Digital Output

6

BCLK

Digital Input/Output

7

DACDAT Digital Input

8

LRC

Digital Input/Output

9

ADCDAT Digital Output

10

CPVDD

Supply

11

CFB1

Analogue Output

12

CPGND

Supply

13

CFB2

Analogue Output

14

VPOS

Analogue Output

15

VNEG

Analogue Output

16

HPOUTR Analogue Output

17

HPGND

Analogue Input

18

HPOUTL Analogue Output

19

LINEOUTR Analogue Output

20

LINEGND Analogue Input

21

LINEOUTL Analogue Output

22

LOP

Analogue Output

23

LON

Analogue Output

24

AVDD

Supply

25

VMID

Analogue Output

26

AGND

Supply

27

RON

Analogue Output

28

ROP

Analogue Output

29

MICBIAS Analogue Output

30

IN3R

Analogue Input

31

IN2R

Analogue Input

32

IN1R

Analogue Input

33

IN3L

Analogue Input

34

IN2L

Analogue Input

35

IN1L

Analogue Input

36

SDIN

Digital Input/Output

37

SCLK

Digital Input

38

GPIO3

Digital Input/Output

/ADDR

39

DCVDD

Supply

40

DBVDD

Supply

DESCRIPTION

Digital ground (return path for DCVDD and DBVDD)

Master clock for CODEC

GPIO2 / Digital microphone data input

GPIO1 / Digital microphone clock output

Interrupt output / GPIO4

Audio interface bit clock / GPIO5

DAC digital audio data

Audio interface left / right clock (common for ADC and DAC)

ADC digital audio data

Charge pump power supply

Charge pump flyback capacitor pin

Charge pump ground

Charge pump flyback capacitor pin

Charge pump positive supply decoupling (powers HPOUTL/R, LINEOUTL/R)

Charge pump negative supply decoupling (powers HPOUTL/R, LINEOUTL/R)

Right headphone output (line or headphone output)

Headphone ground

Left headphone output (line or headphone output)

Right line output 1 (line output)

Line-out ground

Left line output 1 (line output)

Left differential output positive side

Left differential output negative side

Analogue power supply (powers analogue inputs, reference, ADC, DAC, LOP,

LON, ROP, RON)

Midrail voltage decoupling capacitor

Analogue power return

Right differential output negative side

Right differential output positive side

Microphone bias

Right channel input 3

Right channel input 2

Right channel input 1

Left channel input 3

Left channel input 2

Left channel input 1

Control interface data Input / 2-wire acknowledge output

Control interface clock Input

GPIO3 / control interface address selection

Digital core supply

Digital buffer supply (powers audio interface and control interface)

w

PD, Rev 4.5, June 2012

7

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