AK5393 Datasheet, PDF (7/18 Pages) Asahi Kasei Microsystems – Enhanced Dual bit 96 kHz 24-bit ADC

ASAHI KASEI
FILTER CHARACTERISTICS(fs=48kHz)
(Ta=25°C; VA=5.0V±5%; VD=3.0~5.25V; fs=48kHz, DFS="L")
Parameter
Symbol
min
typ
ADC Digital Filter(Decimation LPF):
Passband
(Note 5)
PB
0
Stopband
(Note 5)
SB
26.232
Passband Ripple
PR
Stopband Attenuation
(Note 6)
SA
110
Group Delay Distortion
∆GD
0
Group Delay
(Note 7)
GD
38.7
ADC Digital Filter(HPF):
Frequency response
(Note 5) -3dB
FR
1.0
-0.1dB
6.5
[AK5393]
max
21.768
±0.001
Units
kHz
kHz
dB
dB
us
1/fs
Hz
Hz
FILTER CHARACTERISTICS(fs=96kHz)
(Ta=25°C; VA=5.0V±5%; VD=3.0~5.25V; fs=96kHz, DFS="H")
Parameter
Symbol
min
typ
ADC Digital Filter(Decimation LPF):
Passband
(Note 5)
PB
0
Stopband
(Note 5)
SB
52.464
Passband Ripple
PR
Stopband Attenuation
(Note 8)
SA
110
Group Delay Distortion
∆GD
0
Group Delay
(Note 7)
GD
38.8
ADC Digital Filter(HPF):
Frequency response (Note 5)
-3dB
FR
2.0
-0.1dB
13.0
max
43.536
±0.003
Units
kHz
kHz
dB
dB
us
1/fs
Hz
Hz
Notes: 5. The passband and stopband frequencies scale with fs.
6. The analog modulator samples the input at 6.144MHz for an output word rate of 48kHz.
There is no rejection of input signals which are multiples of the sampling frequency
(that is: there is no rejection for n x 6.144MHz ± 21.768kHz, where n=1,2,3···).
7. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal
to setting the 24bit data of both channels to the output register.
40.7/fs(DFS="L"),40.8/fs(DFS="H")typ. at HPF:ON.
8. The analog modulator samples the input at 6.144MHz for an output word rate of 96kHz.
There is no rejection of input signals which are multiples of the sampling frequency
(that is: there is no rejection for n x 6.144MHz ± 43.536kHz, where n=1,2,3···).
M0038-E-04
-7-
2000/4