WM8904CGEFL/V 参数 Datasheet PDF下载

Pre-Production

WM8904

PIN DESCRIPTION

NAME

IN1L / DMICDAT1

IN2L

IN3L

IN1R / DMICDAT2

IN2R

IN3R

MICBIAS

MICVDD

HPOUTL

HPOUTR

HPOUTFB

LINEOUTL

LINEOUTR

LINEOUTFB

CPVDD

CPGND

CPCA

CPCB

CPVOUTP

CPVOUTN

AVDD

AGND

VMIDC

DCVDD

DBVDD

DGND

MCLK

BCLK / GPIO4

LRCLK

DACDAT

ADCDAT

SCLK

SDA

GPIO1 / IRQ

GPIO2

GPIO3

GND_PADDLE

Note:

1. It is recommended that the QFN ground paddle is connected to analogue ground on the application PCB.

WLCSP 6×6

B3

A2

C3

A1

B2

C2

D1

E1

E3

E2

F3

F2

F1

D2

E6

F6

E5

F5

E4

F4

B1

C1

D3

D5

C6

D6

A4

C4

A5

A6

B5

B6

D4

C5

B4

A3

n/a

QFN-32

27

26

n/a

25

24

n/a

20

19

13

15

14

16

18

17

7

9

8

10

11

12

23

22

21

6

4

5

28

29

30

32

31

2

3

1

n/a

n/a

33

Supply

Supply

Supply

Digital Input

Digital Input / Output

Digital Input / Output

Digital Input

Digital Output

Digital Input

Digital Input / Output

Digital Input / Output

Digital Input / Output

Digital Input / Output

TYPE

Analogue / Digital Input

Analogue Input

Analogue Input

Analogue / Digital Input

Analogue Input

Analogue Input

Analogue Output

Supply

Analogue Output

Analogue Output

Analogue Input

Analogue Output

Analogue Output

Analogue Input

Supply

Supply

Analogue Output

Analogue Output

Analogue Output

Analogue Output

Supply

Supply

DESCRIPTION

Left channel input 1 /

Digital microphone data input 1

Left channel input 2

Left channel input 3

Right channel input 1 /

Digital microphone data input 2

Right channel input 2

Right channel input 3

Microphone bias

Microphone bias amp supply

Left headphone output (line or headphone

output)

Right headphone output (line or headphone

output)

Headphone output ground loop noise rejection

feedback

Left line output 1 (line output)

Right line output 1 (line output)

Line output ground loop noise rejection

feedback

Charge pump power supply

Charge pump ground

Charge pump flyback capacitor pin

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)

Analogue power supply (powers analogue

inputs, reference, ADC, DAC)

Analogue power return

Midrail voltage decoupling capacitor

Digital core supply

Digital buffer supply (powers audio interface

and control interface)

Digital ground (return path for DCVDD and

DBVDD)

Master clock for CODEC

Audio interface bit clock / GPIO4

Audio interface left / right clock (common for

ADC and DAC)

DAC digital audio data

ADC digital audio data

Control interface clock input

Control interface data input / output

GPIO1 / Interrupt

GPIO2

GPIO3

Die Paddle

w

PP, Rev 3.3, September 2012

9