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參數(shù)資料
| 型號： | AK4317 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 18BIT SCF DAC WITH ATT & MIXER |
| 中文描述： | 18位超臨界DAC，具有先進(jìn)交通運輸 |
| 文件頁數(shù)： | 13/19頁 |
| 文件大小： | 171K |
| 代理商： | AK4317 |
ASAHI KASEI
[AK4317]
0172-E-01
1997/5
- 13 -
2. Output mode
The AK4317 supports the following output modes.
Normal stereo output
L/R Reverse output
Monaural output: L/L, R/R, (L+R)/2
Output muting with soft mute operation
When resetting, ATT values of both channels are FFH and the attenuation levels are set 0dB. The output
mode is also set normal stereo output.
S0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
S1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
S2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
S3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Table 3 . Output mode
AOUT0
MUTE
MUTE
MUTE
MUTE
R
R
R
R
L
L
L
L
(L+R)/2
(L+R)/2
(L+R)/2
(L+R)/2
AOUT1
MUTE
R
L
(L+R)/2
MUTE
R
L
(L+R)/2
MUTE
R
L
(L+R)/2
MUTE
R
L
(L+R)/2
Mode
MUTE
Reverse
Stereo
* at RESET
MONO
3. De-emphasis control
DEM bit and DEM pin are ORed internally. The de-emphasis(tc=50/15us) corresponding to fs(sampling
frequency)selected by FS0 and FS1 is enabled by setting DEM bit "1" or DEM pin "H". When DEM bit is
"0" and DEM pin is "L", the de-emphasis is disabled and the setting of FS0 and FS1 is invalid. The de-
emphasis is also disabled at FS0="1" and FS1="0". When resetting, DEM bit is set "0". For example,
when the de-emphasis is controlled by only DEM pin at fs=44.1kHz, DEM,FS0,FS1 bits should be "0".
This condition is also set at resetting.
FS0
0
1
0
1
FS1
0
0
1
1
mode
44.1kHz
OFF
48kHz
32kHz
Table 4 .De-emphasis filter setting
(Valid at DEM bit="1" or DEM pin="H")
4. Attenuation control
ATT values of both channels are set Lch ATT data by setting ATC bit "1". In this case, Rch ATT data is
ignored. When resetting, ATC bit is set "0" (individually control).
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