WM8731CSEFL/R View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

WM8731CSEFL/R

Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates

Cirrus Logic 

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WM8731 / WM8731L

Production Data

REGISTER

ADDRESS

0000011

Right

Headphone Out

0000100

Analogue Audio

Path Control

BIT

LABEL

6:0 RHPVOL

[6:0]

7

RZCEN

8

RLHPBOTH

0

MICBOOST

1

MUTEMIC

2

INSEL

3

BYPASS

4

DACSEL

5

SIDETONE

7:6 SIDEATT[1:0]

DEFAULT

1111001

( 0dB )

0

0

0

1

0

1

0

0

00

DESCRIPTION

Right Channel Headphone Output

Volume Control

1111111 = +6dB

. . 1dB steps down to

0110000 = -73dB

0000000 to 0101111 = MUTE

Right Channel Zero Cross detect

Enable

1 = Enable

0 = Disable

Right to Left Channel Headphone

Volume, Mute and Zero Cross Data

Load Control

1 = Enable Simultaneous Load of

RHPVOL[6:0] and RZCEN to

LHPVOL[6:0] and LZCEN

0 = Disable Simultaneous Load

Microphone Input Level Boost

1 = Enable Boost

0 = Disable Boost

Mic Input Mute to ADC

1 = Enable Mute

0 = Disable Mute

Microphone/Line Input Select to ADC

1 = Microphone Input Select to ADC

0 = Line Input Select to ADC

Bypass Switch

1 = Enable Bypass

0 = Disable Bypass

DAC Select

1 =Select DAC

0 = Don’t select DAC

Side Tone Switch

1 = Enable Side Tone

0 = Disable Side Tone

Side Tone Attenuation

11 = -15dB

10 = -12dB

01 = -9dB

00 = -6dB

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PD, Rev 4.9, October 2012

51

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