[AK4492]
■ Slow Roll-Off Filter Characteristics
Slow Roll-Off Filter Characteristics (fs = 44.1kHz)
(Ta = -40 ~ 85 C; VDDL/R = 4.75 5.25 V, AVDD = TVDD = (DVDD) 3.6 V, DVDD = 1.7~1.98 V;
Normal Speed Mode; DEM = OFF; SD bit or SD pin = “0”, SLOW bit or SLOW pin = “1”, SSLOW bit or
SSLOW pin = “0”)
Parameter
Digital Filter
Frequency
Response
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF (Note 26)
Frequency Response: 0 20.0 kHz
Symbol
Min.
Typ.
Max.
Unit
0.01dB
6.0dB (Note 26)
(Note 30)
-
-
0
-
0
8.0
-
8.0
kHz
kHz
kHz
kHz
dB
21.0
PB
SB
PR
SA
GD
(Note 30)
(Note 28)
(Note 26)
(Note 29)
39.2
0.007
92
-
dB
1/fs
6.5
-
-
-5.5
+0.1
dB
Slow Roll-Off Filter Characteristics (fs = 96kHz)
(Ta = -40 ~ 85 C; VDDL/R = 4.755.25 V, AVDD = TVDD = (DVDD) 3.6 V, DVDD = 1.7~1.98 V; Double
Speed Mode; DEM = OFF; SD bit or SD pin = “0”, SLOW bit or SLOW pin = “1”, SSLOW bit or SSLOW pin
= “0”)
Parameter
Digital Filter
Frequency
Responce
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF (Note 26)
Frequency Response: 0 40.0 kHz
Symbol
Min.
Typ.
Max.
Unit
0.01 dB
6.0 dB (Note 26)
(Note 30)
-
-
0
-
0
17.6
-
17.6
kHz
kHz
kHz
kHz
dB
45.6
PB
SB
PR
SA
GD
(Note 30)
(Note 28)
(Note 26)
(Note 29)
85.4
0.007
100
-
dB
1/fs
6.5
-
-
-5.1
+0.1
dB
Slow Roll-Off Filter Characteristics (fs = 192kHz)
(Ta = -40 ~ 85 C; VDDL/R = 4.755.25 V, AVDD = TVDD = (DVDD) 3.6 V, DVDD = 1.7~1.98 V; Quad
Speed Mode; DEM = OFF; SD bit or SD pin = “0”, SLOW bit or SLOW pin = “1”, SSLOW bit or SSLOW pin
= “0”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Frequency
Responce
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF (Note 26)
0.01 dB
6.0 dB (Note 26)
(Note 30)
-
-
0
-
0
35.2
-
35.2
kHz
kHz
kHz
kHz
dB
91.2
PB
SB
PR
SA
GD
(Note 30)
(Note 28)
(Note 26)
(Note 29)
170.7
0.007
100
-
dB
1/fs
6.5
-
-
Frequency Response: 0 80.0kHz
-8.0
+0.1
dB
Note 30. The passband and stopband frequencies scale with fs. For example, PB = 0.1836 × fs
(@0.01dB), SB = 0.8889 × fs.
016011073-E-00
2016/12
- 17 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
