WM8742 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8742' PDF : 65 Pages View PDF
Production Data
MUTEB
ZFLAG
WM8742
ZDET
DINL
DINR
DSD Direct
DAC
SOFT ANA
L&R L&R
Infinite
Zero
Detect
Figure 25 Software Control Mode MUTEB and ZFLAG Configuration
DE-EMPHASIS
Setting the DEEMPH[1:0] register bits enables de-emphasis support in the WM8742 digital filters.
There are three de-emphasis filters, one each for sampling rates of 32kHz, 44.1kHz and 48kHz.
REGISTER ADDRESS
R6
Filter Control
06h
BIT LABEL
[6:5] DEEMPH
[1:0]
Table 34 De-emphasis Control
DEFAULT
00
DESCRIPTION
De-emphasis mode select:
00 = De-emphasis Off
01 = De-emphasis 32kHz
10 = De-emphasis 44.1kHz
11 = De-emphasis 48kHz
OUTPUT PHASE REVERSAL
The REV register bit controls the phase of the output signal. Setting the REV bit causes the phase of
the output signal to be inverted.
Note: The REV bit can only be used in stereo mode. When in differential mono mode, the REV bit
must remain set as 0.
REGISTER ADDRESS BIT
R5
6
Format Control
05h
Table 35 Output Phase Control
LABEL
REV
DEFAULT
0
DESCRIPTION
Analogue output phase control:
0 = Normal
1 = Inverted
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PD, Rev 4.3, February 2013
35
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