AK7738VQ Datasheet, PDF (27/42 Pages) Asahi Kasei Microsystems – Multi DSP with 5ch ADC + 4ch DAC + 8ch SRC

[AK7738]
2-3 Short Delay Sharp Roll-Off Filter (DASD bit = “1”, DASL bit = “0”)
fs=48kHz
Parameter
Symbol
min
typ
max
Unit
SHORT DELAY SHARP ROLL-OFF
Passband (Note 31)
-0.07dB~+0.07dB
-6.0dB
PB
PB
0
22.0
kHz
24.11
kHz
Passband Ripple
PR
-0.07
+0.07
dB
Stopband
(Note 31)
SB
26.2
kHz
Stopband Attenuation
SA
56.6
dB
Group Delay
(Note 32)
GD
5.9
1/fs
Digital Filter + SCF
Frequency Response : 0Hz  20kHz
FR
-0.20
0.10
dB
fs=96kHz
Parameter
Symbol
min
typ
max
Unit
SHORT DELAY SHARP ROLL-OFF
Passband (Note 31)
-0.08dB~+0.08dB
-6.0dB
PB
PB
0
44.3
kHz
48.25
kHz
Passband Ripple
PR
-0.08
+0.08
dB
Stopband
(Note 31)
SB
52.5
kHz
Stopband Attenuation
SA
56.4
dB
Group Delay
(Note 32)
GD
5.9
1/fs
Digital Filter + SCF
Frequency Response : 0Hz  40kHz
FR
-0.50
0.10
dB
fs=192kHz
Parameter
Symbol
Min
typ
max
Unit
SHORT DELAY SHARP ROLL-OFF
Passband (Note 31)
-0.08dB~+0.08dB
-6.0dB
PB
PB
0
88.6
kHz
96.50
kHz
Passband Ripple
PR
-0.08
+0.08
dB
Stopband
(Note 31)
SB
104.9
kHz
Stopband Attenuation
SA
56.4
dB
Group Delay
(Note 32)
GD
5.9
1/fs
Digital Filter + SCF
Frequency Response : 0Hz  80kHz
FR
-2.00
-0.00
dB
015000122-E-00-PB
- 27 -
2015/01