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WM8741
OVERVIEW OF FUNCTIONS
The WM8741 has many modes of operation, and certain restrictions on what functions are available
in which modes. Table 50 gives an overview of the functions available in hardware and software
control modes across all modes of operation:
SOFTWARE MODE
HARDWARE MODE
FUNCTION
NORMAL
PCM
8FS
DSD
DSD
DIRECT
NORMAL
PCM
DSD
DIRECT
MODE
PLUS
Selectable Digital Filters
44.1kHz Deemphasis
32/48kHz Deemphasis
Adjustable DSP Dither
Differential Mono Mode
Digital Softmute
4
3
5
8
8
8
8
8
8
8
9
8
9
8
8
8
8
9
8
8
8
8
8
9
8
9
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
8
8
9
8
8
9
9
9
9
8
9
9
9
9
9
8
9
9
9
8
9
9
9
9
8
8
8
9
9
8
Analogue Mute
Zero Detect (ZFLAG)
Automute Function
Anti-Clipping Mode
Digital Attenuation
9
8
8
Powerdown Mode
Audio Interface Daisy Chain
8
3-wire Software Interface
Daisy Chain
9
9
9
9
8
Table 50 Comparison of Functions Available across Operating Modes
9
8
= function available
= function not available
PP Rev 1.3 October 2007
43
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
