WM8973 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8973

Stereo CODEC for Portable Audio Applications

Wolfson Microelectronics plc 

WM8973L

PIN DESCRIPTION

Production Data

PIN NO

NAME

TYPE

DESCRIPTION

1

MCLK

Digital Input

Master Clock

2

DCVDD

Supply

Digital Core Supply

3

DBVDD

Supply

Digital Buffer (I/O) Supply

4

DGND

Supply

Digital Ground (return path for both DCVDD and DBVDD)

5

BCLK

Digital Input / Output

Audio Interface Bit Clock

6

DACDAT

Digital Input

DAC Digital Audio Data

7

DACLRC

Digital Input / Output

Audio Interface Left / Right Clock/Clock Out

8

ADCDAT

Digital Output

ADC Digital Audio Data

9

ADCLRC

Digital Input / Output

Audio Interface Left / Right Clock

10

MONOOUT

Analogue Output

Mono Output

11

OUT3

Analogue Output

Analogue Output 3 (can be used as Headphone Pseudo Ground)

12

ROUT1

Analogue Output

Right Output 1 (Line or Headphone)

13

LOUT1

Analogue Output

Left Output 1 (Line or Headphone)

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

Note:

HPGND

ROUT2

LOUT2

HPVDD

AVDD

AGND

VREF

VMID

MICBIAS

RINPUT3 /

HPDETECT

LINPUT3

RINPUT2

LINPUT2

RINPUT1

LINPUT1

MODE

CSB

SDIN

SCLK

Supply

Analogue Output

Analogue Output

Supply

Supply

Supply

Analogue Output

Analogue Output

Analogue Output

Analogue Input

Analogue Input

Analogue Input

Analogue Input

Analogue Input

Analogue Input

Digital Input

Digital Input

Digital Input/Output

Digital Input

Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2)

Right Output 1 (Line or Headphone or Speaker)

Left Output 1 (Line or Headphone or Speaker)

Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2, MONOUT)

Analogue Supply

Analogue Ground (return path for both AVDD)

Reference Voltage Decoupling Capacitor

Midrail Voltage Decoupling Capacitor

Microphone Bias

Right Channel Input 3 or Headphone Plug-in Detection

Left Channel Input 3

Right Channel Input 2

Left Channel Input 2

Right Channel Input 1

Left Channel Input 1

Control Interface Selection

Chip Select / Device Address Selection

Control Interface Data Input / 2-wire Acknowledge output

Control Interface Clock Input

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

w

PD, Rev 4.5, December 2011

6

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