ASAHI KASEI
[AK4394]
SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 44.1kHz)
(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; Normal Speed Mode; DEM = OFF; SLOW = “0”)
Parameter
Digital Filter
Passband
±0.01dB
-6.0dB
(Note 14)
(Note 14)
PB
SB
PR
SA
GD
0
-
24.1
75
-
22.05
20.0
-
±
0.005
28
-
kHz
kHz
kHz
dB
dB
1/fs
Symbol
min
typ
max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF
(Note 15)
Frequency Response 0
~
20.0kHz
-
-
dB
±
0.2
Note: 14. The passband and stopband frequencies scale with fs.
For example, PB = 0.4535×fs (@±0.01dB), SB = 0.546×fs.
15. The calculating delay time which occurred by digital filtering. This time is from setting the 16/20/24bit data of
both channels to input register to the output of analog signal.
SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 96kHz)
(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 96kHz; Double Speed Mode; DEM = OFF; SLOW = “0”)
Parameter
Digital Filter
Passband
±0.01dB
-6.0dB
(Note 14)
(Note 14)
PB
SB
PR
SA
GD
0
-
52.5
75
-
-
48.0
43.5
-
±
0.005
28
±
0.3
-
-
kHz
kHz
kHz
dB
dB
1/fs
dB
Symbol
min
typ
max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF
Frequency Response
(Note 15)
0
~
40.0kHz
SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 192kHz)
(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 192kHz; Quad Speed Mode; DEM = OFF; SLOW = “0”)
Parameter
Digital Filter
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF
Frequency Response
0
~
80.0kHz
-
+0/-1
-
dB
±0.01dB
-6.0dB
(Note 14)
(Note 14)
PB
SB
PR
SA
GD
0
-
105
±
0.005
75
-
28
-
96.0
87.0
-
kHz
kHz
kHz
dB
dB
1/fs
symbol
min
typ
max
Units
(Note 15)
M0081-E-00
-6-
1999/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
