AK4601VQ Datasheet, PDF (26/111 Pages) Asahi Kasei Microsystems – Audio HUB CODEC with Digital Mixer

[AK4601]
9.4 Short Delay Slow Roll-Off Filter (DASD bit = “1”, DASL bit = “1”)
fs=48kHz
Parameter
SHORT DELAY SLOW ROLL-OFF
Passband
0.05dB
(Note 33)
3.0dB
Passband Ripple
(Note 28)
Stopband
(Note 33)
Stopband Attenuation (Note 30, Note 31)
Group Delay
(Note 29)
Digital Filter + SCF + SMF (Note 30)
Frequency Response: 0  20.0kHz
Symbol
PB
PB
PR
SB
SA
GD
Min.
0
-0.05
41.5
82
-
-4.8
Typ.
21.1
Max.
12.0
0.05
5.3
-
0.1
fs=96kHz
Parameter
SHORT DELAY SLOW ROLL-OFF
Passband
0.05dB
(Note 33)
3.0dB
Passband Ripple
(Note 28)
Stopband
(Note 33)
Stopband Attenuation (Note 30, Note 31)
Group Delay
(Note 29)
Digital Filter + SCF + SMF (Note 30)
Frequency Response: 0  40.0kHz
Symbol
PB
PB
PR
SB
SA
GD
Min.
0
-0.05
83.0
82
-
-5.0
Typ.
42.1
Max.
24.2
0.05
5.3
-
0.1
fs=192kHz
Parameter
Symbol
Min.
Typ.
Max.
SHORT DELAY SLOW ROLL-OFF
Passband
0.05dB
PB
0
48.4
(Note 33)
3.0dB
PB
84.3
Passband Ripple
(Note 28)
PR
-0.05
0.05
Stopband
(Note 33)
SB
165.9
Stopband Attenuation (Note 30, Note 31)
SA
82
Group Delay
(Note 29)
GD
-
5.3
-
Digital Filter + SCF + SMF (Note 30)
Frequency Response: 0  80.0kHz
-5.7
0.1
Note 33. The passband and stopband frequencies are proportional to fs (sampling rate).
“PB=0.252  fs, SB=0.864  fs”
Unit
kHz
kHz
dB
kHz
dB
1/fs
dB
Unit
kHz
kHz
dB
kHz
dB
1/fs
dB
Unit
kHz
kHz
dB
kHz
dB
1/fs
dB
016000391-E-01
- 26 -
2016/12