[AK4458]
014011794-E-01
2015/08
- 16 -
■
Short Delay
Slow Roll-Off Filter Characteristics
Short Delay 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=“1”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Pass band (
Note 21
)
0.05dB
PB
0
11.1
kHz
3.0dB
PB
19.4
kHz
Pass band Ripple (
Note 17
)
PR
-0.05
0.05
dB
Stop band (
Note 21
)
SB
38.1
kHz
Stop band Attenuation (
Note 19
)
SA
82
dB
Group Delay (
Note 18
)
GD
-
4.8
-
1/fs
Frequency Response
(
Note 19
)
0.05dB
-
0
11.1
kHz
Digital SCF
(
Note 19
)
Frequency Response: 0
20.0kHz
-5
0.1
dB
Short Delay 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=“1”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Pass band (
Note 21
)
0.05dB
PB
0
24.2
kHz
3.0dB
PB
42.1
kHz
Pass band Ripple (
Note 17
)
PR
-0.05
0.05
dB
Stop band (
Note 21
)
SB
83.0
43.5
Stop band Attenuation (
Note 19
)
SA
82
dB
Group Delay (
Note 18
)
GD
-
4.8
-
1/fs
Frequency Response
(
Note 19
)
0.05dB
-
0
24.2
kHz
Digital SCF
(
Note 19
)
Frequency Response: 0
40.0kHz
-5
0.1
dB
Short Delay 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=“1”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Pass band (
Note 21
)
0.05dB
PB
0
48.4
kHz
3.0dB
PB
84.3
kHz
Pass band Ripple (
Note 17
)
PR
-0.05
0.05
dB
Stop band (
Note 21
)
SB
165.9
kHz
Stop band Attenuation (
Note 19
)
SA
82
dB
Group Delay (
Note 18
)
GD
-
4.8
-
1/fs
Frequency Response
(
Note 19
)
0.05dB
-
0
48.4
kHz
Digital SCF
(
Note 19
)
Frequency Response: 0
80.0kHz
-5
0.1
dB
Note 21. The pass band and stop band frequencies scale with fs. For example, PB=0.252×fs, SB=0.864×fs.
