AK4601VQ Datasheet, PDF (19/111 Pages) Asahi Kasei Microsystems – Audio HUB CODEC with Digital Mixer

[AK4601]
9. Digital Filter Characteristics
1. ADC Block
(Ta= 25C; AVDD=VREFH=3.0~3.6V; LVDD=3.0~3.6V; TVDD=1.7~3.6V; AVSS=VREFL=DVSS1
=DVSS2=0V)
1-1 Sharp Roll-Off Filter (ADSD bit = “0”, ADSL bit = “0”)
fs=48kHz
Parameter
SHARP ROLL-OFF
Passband (Note 25)
0dB/-0.06dB
-3.0dB
Stopband
(Note 25)
Stopband Attenuation
Group Delay Distortion : 0Hz~20kHz
Group Delay
(Note 26)
ADC Digital Filter(HPF)
Frequency Response -3.0dB
Symbol
PB
PB
SB
SA
GD
GD
FR
Min.
0
-
27.8
85
-
-
-
Typ.
-
23.7
-
-
0
20
1.0
Max.
Unit
22.1
kHz
-
kHz
-
kHz
-
dB
-
1/fs
-
1/fs
-
Hz
fs=96kHz
Parameter
SHARP ROLL-OFF
Passband (Note 25)
0dB/-0.06dB
-3.0dB
Stopband
(Note 25)
Stopband Attenuation
Group Delay Distortion : 0Hz~40kHz
Group Delay
(Note 26)
ADC Digital Filter(HPF)
Frequency Response -3.0dB
Symbol
PB
PB
SB
SA
GD
GD
FR
Min.
0
-
55.6
85
-
-
-
Typ.
-
47.5
-
-
0
20
1.9
Max.
Unit
44.2
kHz
-
kHz
-
kHz
-
dB
-
1/fs
-
1/fs
-
Hz
fs=192kHz
Parameter
SHARP ROLL-OFF
Passband (Note 25)
0dB/-0.04dB
-3.0dB
Stopband
(Note 25)
Stopband Attenuation
Group Delay Distortion : 0Hz~40kHz
Group Delay
(Note 26)
ADC Digital Filter(HPF)
Frequency Response -3.0dB
Symbol
PB
PB
SB
SA
GD
GD
FR
Min.
0
-
122.9
85
-
-
-
Typ.
-
96.0
-
-
0
16
3.9
Max.
Unit
83.7
kHz
-
kHz
-
kHz
-
dB
-
1/fs
-
1/fs
-
Hz
016000391-E-01
- 19 -
2016/12