參數(shù)資料
型號： WM8756EFT
廠商： Wolfson Microelectronics
英文描述： 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC
中文描述： 192kHz的六聲道SACD的兼容的音頻數(shù)模轉(zhuǎn)換器
文件頁數(shù)： 29/39頁
文件大小： 330K
代理商： WM8756EFT
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.
Attenuation level of right channel DACR0 in 0.5dB steps, see Table 15
Attenuation Control Levels.
7:0
R0A[7:0]
11111111
(0dB)
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.
Left and Right DACs soft mute control
0: No Mute
1: Mute
De-emphasis Control
0: Normal Response (see Figure 16 - Figure 19)
1: De-emphasis Response (see Figure 20 - Figure 25)
Left and Right DACs Power-down Control
0: All DACs running, output is active
1: All DACs in power saving mode, output muted
Attenuator Control
0: All DACs use attenuations as programmed.
1: Right chan. DACs use corresponding left DAC attenuations
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
Output
0
MUTE
0
1
DEEMPH
0
2
PDWN
0
3
ATC
0
4
IZD
0
Right
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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