AK4490EQ Datasheet, PDF (15/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
■ Slow Roll-Off Filter Characteristics (fs=44.1kHz)
(Ta=25C; AVDD=DVDD=3.0  3.6, VREFHL/R=VDDL/R=4.75  7.2V; Normal Speed Mode; DEM=OFF;
SD bit=“0” or SD pin = “L”, SLOW bit=“1” or SLOW pin = “H”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
6.0dB
0
4.4
kHz
-
18.2
-
kHz
Stopband
Passband Ripple
(Note 13) SB
39.1
PR
kHz
0.005
dB
Stopband Attenuation
SA
94
dB
Group Delay
(Note 14) GD
-
6.63
-
1/fs
Digital Filter + SCF
Frequency Response: 0  20.0kHz
-
+0.1/-4.5
-
dB
■ Slow Roll-Off Filter Characteristics (fs=96kHz)
(Ta=25C; AVDD=DVDD=3.0  3.6, VREFHL/R=VDDL/R=4.75  7.2V; Double Speed Mode; DEM=OFF;
SD bit=“0” or SD pin = “L”, SLOW bit=“1” or SLOW pin = “H”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
0
18.1
kHz
6.0dB
-
45.6
-
kHz
Stopband
(Note 13) SB
85.0
kHz
Passband Ripple
PR
0.005
dB
Stopband Attenuation
SA
100
dB
Group Delay
(Note 14) GD
-
6.00
-
1/fs
Digital Filter + SCF
Frequency Response: 0  40.0kHz
-
+0.1/-4.0
-
dB
■ Slow Roll-Off Filter Characteristics (fs=192kHz)
(Ta=25C; AVDD=DVDD=3.0  3.6, VREFHL/R=VDDL/R=4.75  7.2V; Quad Speed Mode; DEM=OFF;
SD bit=“0” or SD pin = “L”, SLOW bit=“1” or SLOW pin = “H”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
(Note 13) 0.01dB
PB
6.0dB
0
32.9
kHz
-
90.4
-
kHz
Stopband
(Note 13) SB
171
kHz
Passband Ripple
PR
0.005
dB
Stopband Attenuation
SA
97
dB
Group Delay
(Note 14) GD
-
6.00
-
1/fs
Digital Filter + SCF
Frequency Response: 0  80.0kHz
-
+0.1/-5.5
-
dB
Note 15. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@0.01dB),
SB=0.546×fs.
Note 16. 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
- 15 -
2014/11