參數(shù)資料
型號: AK4566VN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 20bit Stereo CODEC with built-in IPGA & HP-AMP
中文描述: 20位立體聲編解碼器內(nèi)置單親遺傳算法
文件頁數(shù): 37/45頁
文件大?。?/td> 454K
代理商: AK4566VN
ASAHI KASEI
AKM CONFIDENTIAL
[AK4566]
REV 0.5
2002/2
- 37 -
Addr
0AH
0BH
Register Name
DAC Lch ATT
DAC Rch ATT
Default
D7
D6
D5
D4
D3
D2
D1
D0
ATTL7
ATTR7 ATTR6 ATTR5 ATTR4 ATTR3 ATTR2 ATTR1 ATTR0
0
0
0
0
ATTL6
ATTL5
ATTL4
ATTL3
ATTL2
ATTL1
ATTL0
0
0
0
0
ATTL7-0: Setting of the attenuation value of output signal from DACL
ATTR7-0: Setting of the attenuation value of output signal from DACR
The AK4566 has channel-independent digital attenuator (256 levels, 0.5dB step). This digital attenuator is
placed before D/A converter. ATTL/R7-0 bits set the attenuation level (0dB to -127dB or MUTE) of each
channel. Digital attenuator is independent of soft mute function.
ATTL/R7-0
Attenuation
FFH
0dB
FEH
0.5dB
FDH
1.0dB
FCH
1.5dB
:
:
02H
126.5dB
01H
127.0dB
00H
MUTE (
)
Table 19. Digital Volume ATT values
Default
:
:
Addr
0CH
Register Name
MOUT ATT
Default
D7
0
0
D6
0
0
D5
0
0
D4
D3
D2
D1
D0
MMUTE
1
ATTM3
0
ATTM2
0
ATTM1
0
ATTM0
0
ATTM3-0: Analog volume control for MOUT
MMUTE: Mute control for MOUT
0: Normal operation. Attenuation value is controlled by ATTM3-0 bits.
1: Mute. ATTM3-0 bits are ignored. (Default)
MMUTE
ATTM3-0
0FH
0EH
0DH
0CH
:
:
01H
00H
x
Attenuation
0dB
2dB
4dB
6dB
:
:
28dB
30dB
MUTE
Default
0
1
Table 20. MOUT Volume ATT values
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