WM8741(2009) Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8741
(Rev.:2009)

24-bit 192kHz DAC with Advanced Digital Filtering

Wolfson Microelectronics plc 

WM8741

PIN

NAME

TYPE

PCM MODE

Production Data

DESCRIPTION

DSD DIRECT MODE

24

MODE /

Digital input, When DIFFHW=0:

LRSEL

tri-level

0 = hardware mode

1 = 3-wire software mode

Z = 2-wire software mode

When DIFFHW=1:

0 = left channel mono

1 = right channel mono

25

MUTEB /

Digital input or Softmute Control

SDOUT

output:

0 = mute active

Internal pull-up 1 = normal operation

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

Analogue Mute Control

0 = mute active

1 = normal operation

26

SDIN /

Digital input De-emphasis Control

DEEMPH

Tri-level

0 = normal operation

1 = de-emphasis applied

Z = anti-clipping digital filter mode

27

SCLK /

Digital input HW Mode Select:

DSD

0 = PCM

1 = DSD Direct

28

CSB /

Digital input Controls audio interface format – see

SADDR /

Table 46

I2S

Notes:

1. Undefined inputs should be connected to DVDD or DGND

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

Unused

HW Mode Select:

0 = PCM

1 = DSD Direct

Unused

w

PD, Rev 4.2, October 2009

8

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