WM8742GEDSSLASHV datasheet(36/66 Pages) CIRRUS

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WM8742

Rev 4.4

MUTEB

ZFLAG

DAC

DINL

DINR

ZDET

ANA

L&R

SOFT

L&R

ZEROFLR

DSD Direct

Infinite

Zero

Detect

IZD

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.

BIT

LABEL

DEFAULT

DESCRIPTION

Filter Control

06h

[6:5]

DEEMPH

[1:0]

De-emphasis mode select:

00 = De-emphasis Off

01 = De-emphasis 32kHz

10 = De-emphasis 44.1kHz

11 = De-emphasis 48kHz

Table 34 De-emphasis Control

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.

BIT

LABEL

DEFAULT

DESCRIPTION

Format Control

05h

REV

Analogue output phase control:

0 = Normal

1 = Inverted

Table 35 Output Phase Control

WM8742GEDS/V 数据表(PDF) 36 Page - Cirrus Logic

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