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WM8756 数据表(PDF) 29 Page - Wolfson Microelectronics plc

部件名 WM8756
功能描述  192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC
PDF  39 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8756 数据表(HTML) 29 Page - Wolfson Microelectronics plc

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WM8756
Advance Information
AI Rev 1.3 October 2001
29
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
7:0
L0A[7:0]
11111111
(0dB)
Attenuation level of left channel DACL0 in 0.5dB steps, see Table 15
Attenuation Control Levels.
0000000
Attenuation
DACL0
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL0 in intermediate latch (no change to output)
1: Store DACL0 and update attenuation on all channels.
7:0
R0A[7:0]
11111111
(0dB)
Attenuation level of right channel DACR0 in 0.5dB steps, see Table 15
Attenuation Control Levels.
0000001
Attenuation
DACR0
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR0 in intermediate latch (no change to output)
1: Store DACR0 and update attenuation on all channels.
0
MUTE
0
Left and Right DACs soft mute control
0: No Mute
1: Mute
1
DEEMPH
0
De-emphasis Control
0: Normal Response (see Figure 16 - Figure 19)
1: De-emphasis Response (see Figure 20 - Figure 25)
2
PDWN
0
Left and Right DACs Power-down Control
0: All DACs running, output is active
1: All DACs in power saving mode, output muted
3
ATC
0
Attenuator Control
0: All DACs use attenuations as programmed.
1: Right chan. DACs use corresponding left DAC attenuations
4
IZD
0
Infinite zero detection circuit control and automute control
0: Infinite zero detect disabled
1: Infinite zero detect enabled
DAC Output Control
PL[3:0]
Left
Output
Right
Output
PL[3:0]
Left
Output
Right
Output
0000
Mute
Mute
1000
Mute
Right
0001
Left
Mute
1001
Left
Right
0010
Right
Mute
1010
Right
Right
0011
(L+R)/2
Mute
1011
(L+R)/2
Right
0100
Mute
Left
1100
Mute
(L+R)/2
0101
Left
Left
1101
Left
(L+R)/2
0110
Right
Left
1110
Right
(L+R)/2
0000010
DAC Control
8:5
PL[3:0]
1001
0111
(L+R)/2
Left
1111
(L+R)/2
(L+R)/2



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