WM8781GEDS データシートの表示（PDF） - Cirrus Logic

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WM8781GEDS

24-Bit, 192kHz Stereo ADC

Cirrus Logic 

WM8781

PIN DESCRIPTION

PIN NO.

1

2

3

4

5

6

7

NAME

MCLK

DOUT

LRCLK

DGND

DVDD

BCLK

IWL

8

FSAMPEN

9

FORMAT

10

VMID

11

VREFGND

12

VREFP

13

AVDD

14

AGND

15

AINOPR

16

AINR

17

COM

18

AINOPL

19

AINL

20

M/S

Production Data

TYPE

Digital Input

Digital Output

Digital Input / Output

Supply

Supply

Digital Input / Output

Digital Tristate Input

Digital Tristate Input

Digital Tristate Input

Analogue Output

Supply

Analogue Output

Supply

Supply

Analogue Output

Analogue Input

Analogue Input

Analogue Output

Analogue Input

Digital Input

DESCRIPTION

Master Clock

ADC Digital Audio Data

Audio Interface Left / Right Clock

Digital Negative Supply

Digital Positive Supply

Audio Interface Bit Clock

Word Length

0 = 16 bit

1 = 20 bit

Z = 24 bit

Fast Sampling Rate Enable

0 = 48kHz enable

1 = 96kHz enable

Z = 192kHz enable

Audio Mode Select

0 = RJ

1 = LJ

Z = I2S

Midrail Voltage Decoupling Capacitor

Negative Supply and Substrate Connection

Positive Reference Voltage Decoupling Pin; 10uF external decoupling

Analogue Positive Supply

Analogue Negative Supply and Substrate Connection

Right Channel Internal Op-Amp Output

Right Channel Input

Common mode high impedance input should be set to midrail.

Left Channel Internal Op-Amp Output

Left Channel Input

Interface Mode Select

0 = Slave mode (128fs, 192fs, 256fs, 384fs, 512fs, 768fs)

1 = Master mode (384fs, 192fs)

(fs=word clock frequency)

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PD, January 2012, Rev 4.5

4

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