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AK4458 Datasheet, PDF (16/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC | |||
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[AK4458]
â Short Delay Slow Roll-Off Filter Characteristics
Short Delay Slow Roll-Off Filter Characteristics (fs= 44.1kHz)
(Ta=-40 ï¾ 105ï°C; AVDD=3.0 ï¾ 5.5V, TVDD=1.7 ï¾ 3.6V; Normal Speed Mode; DEM=OFF;
SLOW bit = â1â, SD bit=â1â)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 21) ï±0.05dB
PB
ï3.0dB
PB
0
11.1
kHz
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) ï±0.05dB
-
0
11.1
kHz
Digital Filter + SCF
(Note 19)
Frequency Response: 0 ï¾ 20.0kHz
-5
0.1
dB
Short Delay Slow Roll-Off Filter Characteristics (fs= 96kHz)
(Ta=-40 ï¾ 105ï°C; AVDD=3.0 ï¾ 5.5V, TVDD=1.7 ï¾ 3.6V; Double Speed Mode; DEM=OFF; SLOW bit = â1â,
SD bit=â1â)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 21)
ï±0.05dB
ï3.0dB
PB
PB
0
24.2
kHz
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) ï±0.05dB
-
0
24.2
kHz
Digital Filter + SCF
(Note 19)
Frequency Response: 0 ï¾ 40.0kHz
-5
0.1
dB
Short Delay Slow Roll-Off Filter Characteristics (fs= 192kHz)
(Ta=-40 ï¾ 105ï°C; AVDD=3.0 ï¾ 5.5V, TVDD=1.7 ï¾ 3.6V; Quad Speed Mode; DEM=OFF; SLOW bit = â1â,
SD bit=â1â)
Parameter
Symbol Min.
Typ.
Max.
Unit
Digital Filter
Pass band
(Note 21)
ï±0.05dB
ï3.0dB
PB
PB
0
48.4
kHz
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) ï±0.05dB
-
0
48.4
kHz
Digital Filter + SCF
(Note 19)
Frequency Response: 0 ï¾ 80.0kHz
-5
0.1
dB
Note 21. The pass band and stop band frequencies scale with fs. For example, PB=0.252Ãfs, SB=0.864Ãfs.
014011794-E-01
- 16 -
2015/08
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