AK4436 Datasheet, PDF (9/63 Pages) Asahi Kasei Microsystems – 108dB 768kHz 32bit 6-Channel Audio DAC

[AK4436]
9. Filter Characteristics (fs=48kHz)
(Ta= -40  +105C; AVDD =3.0 3.6V, TVDD=1.7 3.6V; DEM=OFF)
■ Sharp Roll-Off Filter (SD bit = “0”, SLOW bit = “0”)
fs=44.1kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Passband
(Note 11)
0.05dB
3.0dB
PB
PB
0
20.0
kHz
21.5
kHz
Passband Ripple
(Note 12)
PR
-0.0032
0.0032
dB
Stopband
(Note 11)
SB
24.1
kHz
Stopband Attenuation
(Note 14)
SA
80
dB
Group Delay
(Note 13) GD
-
26.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0  20.0kHz
-0.26
0.1
dB
fs=96kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Passband
(Note 11)
0.05dB
3.0dB
PB
PB
0
43.5
kHz
46.8
kHz
Passband Ripple
(Note 12)
PR
-0.0032
0.0032
dB
Stopband
(Note 11)
SB
52.5
0
kHz
Stopband Attenuation
(Note 14)
SA
80
dB
Group Delay
(Note 13) GD
-
26.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response: 0  20.0kHz
-0.53
0.1
dB
fs=192kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Passband
(Note 11)
0.05dB
3.0dB
PB
PB
0
87.0
kHz
93.6
kHz
Passband Ripple
(Note 12)
PR
-0.0032
0.0032
dB
Stopband
(Note 11)
SB
105
kHz
Stopband Attenuation
(Note 14)
SA
80
dB
Group Delay
(Note 13) GD
-
26.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0  20.0kHz
-1.9
0.1
dB
Note 11. The pass band and stop band frequencies scale with fs. For example, PB=0.4535×fs,
SB=0.546×fs.
Note 12. It is the pass band gain amplitude of the double over sampling filter at the first step of the
Interpolator.
Note 13. The calculating delay time which occurred by digital filtering. This time is from setting the
16/20/24/32bit data of both channels to input register to the output of analog signal.
Note 14. The output level is assumed as 0dB when inputting a 1kHz 0dB sine wave.
*Digital filter characteristics are based on simulation results.
016001934-E-00
-9-
2016/03