AK7738VQ Datasheet, PDF (23/42 Pages) Asahi Kasei Microsystems – Multi DSP with 5ch ADC + 4ch DAC + 8ch SRC

[AK7738]
1-3 Short Delay Sharp Roll-Off Filter (ADSD bit = “1”, ADSL bit = “0”)
fs=48kHz
Parameter
Symbol
min
typ
SHORT DELAY SHARP ROLL-OFF
Passband (Note 29)
0dB ~ -0.06dB
-6.0dB
PB
PB
0
24.4
Stopband
(Note 29)
SB
27.8
Stopband Attenuation
SA
85
Group Delay Distortion : 0Hz~20kHz
GD
Group Delay
(Note 30)
GD
5
ADC Digital Filter(HPF)
Frequency Response
-3.0dB
FR
1.0
max
Unit
22.1
kHz
kHz
kHz
dB
2.6
1/fs
1/fs
Hz
fs=96kHz
Parameter
Symbol
min
typ
SHORT DELAY SHARP ROLL-OFF
Passband (Note 29)
0dB ~ -0.06dB
-6.0dB
PB
PB
0
48.7
Stopband
(Note 29)
SB
55.6
Stopband Attenuation
SA
85
Group Delay Distortion : 0Hz~40kHz
GD
Group Delay
(Note 30)
GD
5
ADC Digital Filter(HPF)
Frequency Response
-3.0dB
FR
1.9
max
Unit
44.2
kHz
kHz
kHz
dB
2.6
1/fs
1/fs
Hz
fs=192kHz
Parameter
Symbol
min
typ
max
Unit
SHORT DELAY SHARP ROLL-OFF
Passband (Note 29)
0dB ~ -0.04dB
-6.0dB
PB
PB
0
83.7
kHz
100.1
kHz
Stopband
(Note 29)
SB
122.9
kHz
Stopband Attenuation
SA
85
dB
Group Delay Distortion : 0Hz~40kHz
GD
0.2
1/fs
Group Delay
(Note 30)
GD
6
1/fs
ADC Digital Filter(HPF)
Frequency Response
-3.0dB
FR
3.88
Hz
015000122-E-00-PB
- 23 -
2015/01