AK4458 Datasheet, PDF (14/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
■ Slow Roll-Off Filter Characteristics
Slow Roll-Off Filter Characteristics (fs = 44.1kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Normal Speed Mode; DEM=OFF;
SLOW bit = “1”, SD bit=“0”)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 20) ^0.05dB
PB
0
8.1
kHz
3.0dB
PB
18.2
kHz
Pass band Ripple
(Note 17)
PR
-0.043
0.043
dB
Stop band
(Note 20)
SB
39.2
Stop band Attenuation
(Note 19)
SA
73
dB
Group Delay
(Note 18)
GD
-
6.3
-
1/fs
Frequency Response (Note 19) 0.05dB
-
0
8.1
kHz
Digital Filter + SCF (Note 19)
Frequency Response: 0  20.0kHz
-5
0.1
dB
Slow Roll-Off Filter Characteristics (fs = 96kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Double Speed Mode; DEM=OFF; SLOW bit = “1”,
SD bit=“0”)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 20)
0.05dB
3.0dB
PB
PB
0
17.7
kHz
39.5
kHz
Pass band Ripple
(Note 17)
PR
-0.043
0.043
dB
Stop band
(Note 20)
SB
85.3
Stop band Attenuation
(Note 19)
SA
73
dB
Group Delay
(Note 18)
GD
-
6.3
-
1/fs
Frequency Response (Note 19) 0.05dB
PB
0
17.7
kHz
Digital Filter + SCF
(Note 19)
Frequency Response: 0  40.0kHz
-5
0.1
dB
Slow Roll-Off Filter Characteristics (fs = 192kHz)
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; Quad Speed Mode; DEM=OFF; SLOW bit = “1”,
SD bit=“0”)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 20)
0.05dB
3.0dB
PB
PB
0
35.5
kHz
79.0
kHz
Pass band Ripple
(Note 17)
PR
-0.043
0.043
dB
Stop band
(Note 20)
SB
171
kHz
Stop band Attenuation
(Note 19)
SA
73
dB
Group Delay
(Note 18)
GD
-
6.3
-
1/fs
Frequency Response (Note 19) 0.05dB
PB
0
35.5
kHz
Digital Filter + SCF
(Note 19)
Frequency Response: 0  80.0kHz
-5
0.1
dB
Note 20. The pass band and stop band frequencies scale with fs. For example, PB=0.185×fs, SB=0.888×fs.
014011794-E-01
- 14 -
2015/08