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WM8581 датащи(PDF) 80 Page - Wolfson Microelectronics plc

номер детали WM8581
подробное описание детали  Multichannel CODEC with S/PDIF Transceiver
PDF  94 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8581 датащи(HTML) 80 Page - Wolfson Microelectronics plc

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WM8581
Product Preview
w
PP Rev 1.0 March 2006
80
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
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
5
DZCEN
0
DAC Digital Volume Zero Cross Enable
0 = Zero Cross detect disabled
1 = Zero Cross detect enabled
6
DACATC
0
Attenuator Control
0 = All DACs use attenuations as programmed.
1 = Right channel DACs use corresponding left DAC attenuations
7
MPDENB
0
MUTE pin decode enable
0 = MUTE activates soft-mute on DAC selected by DZFM
1 = MUTE activates softmute on all DACs
7:0
LDA1[7:0]
11111111
(0dB)
Digital Attenuation control for DAC1 Left Channel (DACL1) in
0.5dB steps. See Table 22
R20
DIGITAL
ATTENUATION
DACL 1
14h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store LDA1 in intermediate latch (no change to output)
1 = Apply LDA1 and update attenuation on all channels
7:0
RDA1[6:0]
11111111
(0dB)
Digital Attenuation control for DAC1 Right Channel (DACR1) in
0.5dB steps. See Table 22
R21
DIGITAL
ATTENUATION
DACR 1
15h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store RDA1 in intermediate latch (no change to output)
1 = Apply RDA1 and update attenuation on all channels
7:0
LDA2[7:0]
11111111
(0dB)
Digital Attenuation control for DAC2 Left Channel (DACL2) in
0.5dB steps. See Table 22
R22
DIGITAL
ATTENUATION
DACL 2
16h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store LDA2 in intermediate latch (no change to output)
1 = Apply LDA2 and update attenuation on all channels
7:0
RDA2[7:0]
11111111
(0dB)
Digital Attenuation control for DAC2 Right Channel (DACR2) in
0.5dB steps. See Table 22
R23
DIGITAL
ATTENUATION
DACR 2
17h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store RDA2 in intermediate latch (no change to output)
1 = Apply RDA2 and update attenuation on all channels
7:0
LDA3[7:0]
11111111
(0dB)
Digital Attenuation control for DAC3 Left Channel (DACL3) in
0.5dB steps. See Table 22
R24
DIGITAL
ATTENUATION
DACL 3
18h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store LDA3 in intermediate latch (no change to output)
1 = Apply LDA3 and update attenuation on all channels
7:0
RDA3[7:0]
11111111
(0dB)
Digital Attenuation control for DAC3 Right Channel (DACR3) in
0.5dB steps. See Table 22
R25
DIGITAL
ATTENUATION
DACR 3
19h
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store RDA3 in intermediate latch (no change to output)
1 = Apply RDA3 and update attenuation on all channels
7:0
LDA4[7:0]
11111111
(0dB)
Digital Attenuation control for DAC4 Left Channel (DACL4) in
0.5dB steps. See Table 22
R26
DIGITAL
ATTENUATION
DACL 4
1Ah
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store LDA4 in intermediate latch (no change to output)
1 = Apply LDA4 and update attenuation on all channels
7:0
RDA4[7:0]
11111111
(0dB)
Digital Attenuation control for DAC4 Right Channel (DACR4) in
0.5dB steps. See Table 22
R27
DIGITAL
ATTENUATION
DACR 4
1Bh
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0 = Store RDA4 in intermediate latch (no change to output)
1 = Apply RDA4 and update attenuation on all channels



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