ak4317 ETC-unknow, ak4317 Datasheet - Page 13

• Manufacturer Part Number: ak4317
• Description: 18bit Scf Dac With Att & Mixer
• Manufacturer: ETC-unknow

ASAHI KASEI
2. Output mode
The AK4317 supports the following output modes.
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.
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.
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).
0172-E-01
L/R Reverse output
Monaural output: L/L, R/R, (L+R)/2
Output muting with soft mute operation
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
(Valid at DEM bit="1" or DEM pin="H")
S2
Table 4 .De-emphasis filter setting
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
FS0
0
1
0
1
Table 3 . Output mode
S3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
FS1
0
0
1
1
- 13 -
AOUT0
(L+R)/2
(L+R)/2
(L+R)/2
(L+R)/2
MUTE
MUTE
MUTE
MUTE
R
R
R
R
L
L
L
L
44.1kHz
48kHz
32kHz
mode
OFF
AOUT1
(L+R)/2
(L+R)/2
(L+R)/2
(L+R)/2
MUTE
MUTE
MUTE
MUTE
R
R
R
R
L
L
L
L
Reverse
MONO
Stereo
MUTE
Mode
* at RESET
[AK4317]
1997/5