WM8774IFT datasheet(31/42 Pages) WOLFSON

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WM8774

PP Rev 1.0 June 2002

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

DZCEN

DAC Digital Volume Zero Cross Enable:

0: Zero Cross detect disabled

1: Zero Cross detect enabled

ATC

Attenuator Control

0: All DACs use attenuations as programmed.

1: Right channel DACs use corresponding left DAC

attenuations

IZD

Infinite zero detection circuit control and automute control

0: Infinite zero detect automute disabled

1: Infinite zero detect automute enabled

TOD

DAC Analogue Zero cross detect timeout disable

0 : Timeout enabled

1: Timeout disabled

DAC Output Control

PL[3:0]

Left

Output

Right

Output

PL[3:0]

Left

Output

Right

Output

0000

Mute

1000

Mute

Right

0001

Left

Mute

1001

Left

Right

0010

Right

Mute

1010

Right

0011

(L+R)/2

Mute

1011

(L+R)/2

Right

0100

Mute

Left

1100

Mute

(L+R)/2

0101

Left

1101

Left

(L+R)/2

0110

Right

Left

1110

Right

(L+R)/2

10011

DAC Control

7:4

PL[3:0]

1001

0111

(L+R)/2

Left

1111

(L+R)/2

DMUTE

DAC channel soft mute enables:

0: mute disabled

1: mute enabled

10100

DAC Mute

RECEN

REC Output Enable

0 : REC output muted

1: REC output enabled

10101

DAC Control

3:0

DEEMP

De-emphasis mode select:

0 : Normal Mode

1: De-emphasis Mode

1:0

FMT[1:0]

Interface format select

00: right justified mode

01: left justified mode

10: I

2S mode

11: DSP mode

ADCLRC/DACLRC Polarity or DSP Early/Late mode select

10110

Interface

Control

LRP

Left Justified / Right Justified /

0: Standard DACLRC Polarity

1: Inverted DACLRC Polarity

DSP Mode

0: Early DSP mode

1: Late DSP mode

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