WM8742 Просмотр технического описания (PDF) - Cirrus Logic

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WM8742

24-bit 192kHz DAC with Advanced Digital Filtering

Cirrus Logic 

WM8742

PIN

NAME

TYPE

PCM MODE

DESCRIPTION

8FS PCM MODE

Production Data

DSD MODES

24

MODE /

Digital input, When DIFFHW=0:

When DIFFHW=0:

LRSEL

tri-level

0 = hardware mode

0 = hardware mode

1 = 3-wire software mode 1 = 3-wire software mode

Z = 2-wire software mode Z = 2-wire software mode

When DIFFHW=1:

When DIFFHW=1:

0 = left channel mono

0 = left channel mono

1 = right channel mono

1 = right channel mono

25

MUTEB /

Digital input or Softmute Control

Softmute Control

SDOUT

output:

0 = mute active

0 = mute active

Internal pull-up 1 = normal operation

1 = normal operation

NOTE: In 3-wire mode

only, this pin may be

used as a buffered

control interface data

output

26

SDIN /

Digital input Serial control interface

Serial control interface

DEEMPH

Tri-level

data input

data input

27

SCLK /

Digital input Serial control interface

Serial control interface

DSD

clock input

clock input

28

CSB /

Digital input 3-wire mode: serial

3-wire mode: serial

SADDR /

control interface latch

control interface latch

I2S

2-wire mode: device

2-wire mode: device

address select

address select

Notes:

1. Undefined inputs should be connected to DVDD or DGND

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

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

Softute Control

0 = mute active

1 = normal operation

NOTE: In DSD Direct

mode this is an analogue

mute

Serial control interface

data input

Serial control interface

clock input

3-wire mode: serial

control interface latch

2-wire mode: device

address select

w

PD, Rev 4.3, February 2013

6

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