WM8741 datasheet(7/63 Pages) WOLFSON

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WM8741

PP Rev 1.3 October 2007

NAME

TYPE

DESCRIPTION

PCM MODE

8FS PCM MODE

DSD MODES

MODE /

LRSEL

Digital input,

tri-level

When DIFFHW=0:

0 = hardware mode

1 = 3-wire software mode

Z = 2-wire software mode

When DIFFHW=1:

0 = left channel mono

1 = right channel mono

When DIFFHW=0:

0 = hardware mode

1 = 3-wire software mode

Z = 2-wire software mode

When DIFFHW=1:

0 = left channel mono

1 = right channel mono

When DIFFHW=0:

0 = hardware mode

1 = 3-wire software mode

Z = 2-wire software mode

When DIFFHW=1:

0 = left channel mono

1 = right channel mono

MUTEB /

SDOUT

Digital input or

output:

Internal pull-up

Softmute Control

0 = mute active

1 = normal operation

NOTE: In 3-wire mode

only, this pin may be

used as a buffered

control interface data

output

Softmute Control

0 = mute active

1 = normal operation

Softute Control

0 = mute active

1 = normal operation

NOTE: In DSD Direct

mode this is an analogue

mute

SDIN /

DEEMPH

Digital input

Tri-level

Serial control interface

data input

Serial control interface

data input

Serial control interface

data input

SCLK /

DSD

Digital input

Serial control interface

clock input

Serial control interface

clock input

Serial control interface

clock input

CSB /

SADDR /

I2S

Digital input

3-wire mode: serial

control interface latch

2-wire mode: device

address select

3-wire mode: serial

control interface latch

2-wire mode: device

address select

3-wire mode: serial

control interface latch

2-wire mode: device

address select

Notes:

Undefined inputs should be connected to DVDD or DGND

Tri-level pins which require the ‘Z’ state to be selected should be left floating (open)

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