[AK4492]
■ Short Delay Sharp Roll-Off Filter Characteristics
Short Delay Sharp Roll-Off Filter Characteristics (fs = 44.1kHz)
(Ta = -40 ~ 85 C; VDDL/R = 4.755.25 V, AVDD = TVDD = (DVDD) 3.6 V, DVDD = 1.7~1.98 V; Normal
Speed Mode; DEM = OFF; SD bit or SD pin = “1”, SLOW bit or SLOW pin = “0”, 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 20.0 kHz
Symbol
Min.
Typ.
Max.
Unit
0.01 dB
6.0 dB (Note 26)
(Note 31)
-
-
0
-
0
20.0
-
20.0
kHz
kHz
kHz
kHz
dB
22.05
PB
SB
PR
SA
GD
(Note 31)
(Note 30)
(Note 26)
(Note 29)
24.1
0.005
100
-
dB
1/fs
6.0
-
-
-0.7
+0.1
dB
Short Delay Sharp 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 = “1”, SLOW bit or SLOW pin = “0”, 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 31)
-
-
0
-
0
43.5
-
43.5
kHz
kHz
kHz
kHz
dB
48.0
PB
SB
PR
SA
GD
(Note 31)
(Note 28)
(Note 26)
(Note 29)
52.5
0.005
100
-
dB
1/fs
6.0
-
-
-1.9
+0.1
dB
Short Delay Sharp 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 = “1”, SLOW bit or SLOW pin = “0”, 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 80.0 kHz
Symbol
Min.
Typ.
Max.
Unit
0.01 dB
6.0 dB (Note 26)
(Note 31)
-
-
0
-
0
87.0
-
87.0
kHz
kHz
kHz
kHz
dB
96.0
PB
SB
PR
SA
GD
(Note 31)
(Note 28)
(Note 26)
(Note 29)
104.9
0.005
100
-
dB
1/fs
6.0
-
-
-5.0
+0.1
dB
Note 31. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@0.01dB),
SB=0.546×fs.
016011073-E-00
2016/12
- 19 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
