AK7735EQ Datasheet, PDF (21/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

2. Slow Roll-Off Filter (ADSD bit = “0”, ADSL bit = “1”)
fs=48kHz
Parameter
Symbol
Min.
Typ.
SLOW ROLL-OFF
Passband * 25
0dB ~ -0.074dB
-3.0dB
PB
PB
0
19.2
Stopband * 25
SB
36.5
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~20kHz
GD
0
Group Delay * 26
GD
8
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
0.9
fs=96kHz
Parameter
Symbol
Min.
Typ.
SLOW ROLL-OFF
Passband * 25
0dB ~ -0.074dB
-3.0dB
PB
PB
0
38.5
Stopband * 25
SB
73.0
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~40kHz
GD
0
Group Delay * 26
GD
8
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
1.9
fs=192kHz
Parameter
Symbol
Min.
Typ.
SLOW ROLL-OFF
Passband * 25
0dB ~ -0.1dB
-3.0dB
PB
PB
0
62.3
Stopband * 25
SB
145.9
Stopband Attenuation
SA
85.0
Group Delay Distortion : 0Hz~40kHz
GD
0
Group Delay * 26
GD
9
ADC Digital Filter(HPF)
Frequency Response -3.0dB
FR
3.8
[AK7735]
Max.
Unit
12.5
kHz
kHz
kHz
dB
1/fs
1/fs
Hz
Max.
Unit
25
kHz
kHz
kHz
dB
1/fs
1/fs
Hz
Max.
Unit
31.1
kHz
kHz
kHz
dB
1/fs
1/fs
Hz
016014707-E-00
- 21 -
2016/12