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

'WM8731CSEFL/R' PDF : 65 Pages View PDF

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WM8731 / WM8731L
The software control is given in Table 9.
REGISTER
ADDRESS
0000010
Left
Headphone
Out
BIT
6:0
LABEL
LHPVOL[6:0]
DEFAULT
1111001
( 0dB )
7
LZCEN
0
8
LRHPBOTH
0
0000011
6:0
Right
Headphone
Out
RHPVOL[6:0]
1111001
( 0dB )
7
RZCEN
0
8
RLHPBOTH
0
Table 9 Headphone Output Software Control
Production Data
DESCRIPTION
Left Channel Headphone Output
Volume Control
1111111 = +6dB
. . 1dB steps down to
0110000 = -73dB
0000000 to 0101111 = MUTE
Left Channel Zero Cross detect
Enable
1 = Enable
0 = Disable
Left to Right Channel Headphone
Volume, Mute and Zero Cross Data
Load Control
1 = Enable Simultaneous Load of
LHPVOL[6:0] and LZCEN to
RHPVOL[6:0] and RZCEN
0 = Disable Simultaneous Load
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
w
PD, Rev 4.9, October 2012
31

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