WM8776 datasheet(41/55 Pages) WOLFSON

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WM8776

PP Rev 1.91 June 2004

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R6 (06h)

0000110

Phase Swaps

1:0

PHASE

Controls phase of DAC outputs (LEFT, RIGHT channel)

0: Sets non inverted output phase

1: inverts phase of DAC output

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 DAC uses 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 and ADC 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

R7 (07h)

0000111

DAC Control

7:4

PL[3:0]

1001

0111

(L+R)/2

Left

1111

(L+R)/2

R8 (08h)

0001000

DAC Mute

DMUTE

DAC channel soft mute enables:

0: mute disabled

1: mute enabled

DEEMPH

De-emphasis mode select:

0 : Normal Mode

1: De-emphasis Mode

DZFM

ZFLAG1

ZFLAG2

R9 (09h)

0001001

DAC Control

2:1

DZFM

disabled

left channels zero

both channels zero

either channel zero

disabled

right channels zero

both channels zero

either channel zero

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