AK4490 Datasheet, PDF (11/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
■ Sharp Roll-Off Filter Characteristics (fs=44.1kHz)
(Ta=25C; AVDD=DVDD=3.0~3.6V, VREFHL/R=VDDL/R=4.75  7.2V; Normal Speed Mode;
DEM=OFF; SD bit=“0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
0
20.0
kHz
6.0dB
-
22.05
-
kHz
Stopband
(Note 13) SB
24.1
kHz
Passband Ripple
PR
0.005
dB
Stopband Attenuation
SA
100
dB
Group Delay
(Note 14) GD
-
29.4
-
1/fs
Digital Filter + SCF
Frequency Response: 0  20.0kHz
-
+0.1/-0.2
-
dB
■ Sharp Roll-Off Filter Characteristics (fs=96kHz)
Ta=25C; AVDD=DVDD=3.0~3.6V, VREFHL/R=VDDL/R=4.75  7.2V; Double Speed Mode; DEM=OFF;
SD bit=“0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
0
43.5
kHz
6.0dB
-
48.0
-
kHz
Stopband
(Note 13) SB
52.5
kHz
Passband Ripple
PR
0.005
dB
Stopband Attenuation
SA
100
dB
Group Delay
(Note 14) GD
-
28.8
-
1/fs
Digital Filter + SCF
Frequency Response: 0  40.0kHz
-
+0.1/-0.6
-
dB
■ Sharp Roll-Off Filter Characteristics (fs=192kHz)
(Ta=25C; AVDD=DVDD=3.0~3.6V, VREFHL/R=VDDL/R=4.75  7.2V; Quad Speed Mode; DEM=OFF;
SD bit=“0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
6.0dB
0
87.0
kHz
-
96.0
-
kHz
Stopband
Passband Ripple
(Note 13) SB
105
PR
kHz
0.005
dB
Stopband Attenuation
SA
92
dB
Group Delay
(Note 14) GD
-
28.8
-
1/fs
Digital Filter + SCF
Frequency Response: 0  80.0kHz
-
+0.1/-0.2
-
dB
Note 13. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@0.01dB),
SB=0.546×fs.
Note 14. The calculating delay time which occurred by digital filtering. This time is from setting the
16/20/24/32 bit data of both channels to the output of analog signal.
MS1648-E-03
- 11 -
2014/11