WM8591GEDSSLASHV datasheet(38/51 Pages) WOLFSON

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WM8591

Production Data

PD Rev 4.0 December 2005

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

7:0

LDA[7:0]

11111111

(0dB)

Digital Attenuation Data for Left Channel DACL in 0.5dB Steps

R3 (03h)

0000011

Digital

Attenuation

DACL

UPDATED

Not latched

Controls Simultaneous Update of all Attenuation Latches:

0: Store LDA1 in intermediate latch (no change to output)

1: Store LDA1 and update attenuation on all channels

7:0

RDA[6:0]

11111111

(0dB)

Digital Attenuation Data for Right Channel DACR in 0.5dB Steps

R4 (04h)

0000100

Digital

Attenuation

DACR

UPDATED

Not latched

Controls Simultaneous Update of all Attenuation Latches:

0: Store RDA1 in intermediate latch (no change to output)

1: Store RDA1 and update attenuation on all channels

7:0

MDA[7:0]

11111111

(0dB)

Digital Attenuation Data for all DAC Channels in 0.5dB Steps

R5 (05h)

0000101

Master

Digital

Attenuation

(All Channels)

UPDATED

Not latched

Controls Simultaneous Update of all Attenuation Latches:

0: Store gain in intermediate latch (no change to output)

1: Store gain and update attenuation on all channels

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

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