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WM8580 датащи(PDF) 32 Page - Wolfson Microelectronics plc

номер детали WM8580
подробное описание детали  Multichannel CODEC with S/PDIF Transceiver
PDF  92 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8580 датащи(HTML) 32 Page - Wolfson Microelectronics plc

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WM8580
Production Data
W
PD Rev 4.0 February 2007
32
REGISTER ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R19
DAC CONTROL 5
13h
5
DZCEN
0
DAC Digital Volume Zero Cross
Enable
0 = Zero Cross detect disabled
1 = Zero Cross detect enabled
Table 25 Digital Zero Cross Register
MUTE MODES
The WM8580 has individual mutes for each of the three DAC channels. Setting DMUTE for a
channel will apply a ‘soft-mute’ to the input of the digital filters for that channel. DMUTE[0] mutes
DAC1 channel, DMUTE[1] mutes DAC2 channel and DMUTE[2] mutes DAC3 channel. Setting the
MUTEALL register bit will apply a 'soft-mute’ to the input of all the DAC digital filters.
The MUTE pin can also be used to apply soft-mute to the DAC selected by the DZFM register bits.
However, if the MPDENB register bit is set, the MUTE pin will activate a soft-mute for all DACs.
REGISTER ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
2:0
DMUTE[2:0]
000
DAC channel soft mute
enables:
DMUTE[0] = 1, enable soft-
mute on DAC1.
DMUTE[1] = 1, enable soft-
mute on DAC2.
DMUTE[2] = 1, enable soft-
mute on DAC3.
4
MUTEALL
0
DAC channel master soft mute.
Mutes all DAC channels:
0 = disable soft-mute on all
DACs.
1 = enable soft-mute on all
DACs.
R19
DAC CONTROL 5
13h
7
MPDENB
0
MUTE pin decode enable:
0 = MUTE activates soft-mute
on DAC selected by DZFM
1 = MUTE activates softmute
on all DACs
Table 26 Mute Registers



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