AK7735EQ Datasheet, PDF (22/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

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 * 25
0dB ~ -0.06dB
-3.0dB
PB
PB
0
23.7
Stopband * 25
SB
27.8
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~20kHz
GD
Group Delay * 26
GD
6
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
0.9
fs=96kHz
Parameter
Symbol
Min.
Typ.
SHORT DELAY SHARP ROLL-OFF
Passband * 25
0dB ~ -0.06dB
-3.0dB
PB
PB
0
47.5
Stopband * 25
SB
55.6
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~40kHz
GD
Group Delay * 26
GD
6
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
1.9
fs=192kHz
Parameter
Symbol
Min.
Typ.
SHORT DELAY SHARP ROLL-OFF
Passband * 25
0dB ~ -0.04dB
-3.0dB
PB
PB
0
96.0
Stopband * 25
SB
122.9
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~40kHz
GD
Group Delay * 26
GD
7
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
3.8
[AK7735]
Max.
Unit
22.1
kHz
kHz
kHz
dB
2.6
1/fs
1/fs
Hz
Max.
Unit
44.2
kHz
kHz
kHz
dB
2.6
1/fs
1/fs
Hz
Max.
Unit
83.7
kHz
kHz
kHz
dB
0.2
1/fs
1/fs
Hz
016014707-E-00
- 22 -
2016/12