[AK4621]
DAC SHARP ROLL OFF FILTER CHARACTERISTICS (fs = 48kHz)
(Ta = 25°C; AVDD=4.75
∼
5.25V; DVDD=3.0
∼
3.6V, TVDD=DVDD
∼
5.25V; Normal Speed Mode; DEM = OFF;
SLOW bit = “0”, SDDA bit = “0”)
Parameter
Symbol
min
typ
max
Units
Digital Filter
Passband
-0.04dB
PB
0
-
21.8
kHz
-6.0dB
-
24.0
-
kHz
Stopband
SB
26.2
-
-
kHz
Passband Ripple
PR
-
-
±0.06
dB
Stopband Attenuation
SA
70
-
-
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
-
-
dB
Frequency Response: 0
∼
20.0kHz
±
0.2
DAC SHARP ROLL OFF FILTER CHARACTERISTICS (fs = 96kHz)
(Ta = 25°C; AVDD=4.75
∼
5.25V; DVDD=3.0
∼
3.6V, TVDD=DVDD
∼
5.25V; Double Speed Mode; DEM = OFF;
SLOW bit = “0”, SDDA bit = “0”)
Parameter
Symbol
min
typ
max
Units
Digital Filter
Passband
-0.04dB
PB
0
-
43.5
kHz
-6.0dB
-
48.0
-
kHz
Stopband
SB
52.4
-
-
kHz
Passband Ripple
PR
-
-
±0.06
dB
Stopband Attenuation
SA
70
-
-
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
-
-
dB
Frequency Response: 0
∼
40.0kHz
±
0.3
DAC SHARP ROLL OFF FILTER CHARACTERISTICS (fs = 192kHz)
(Ta = 25°C; AVDD=4.75
∼
5.25V; DVDD=3.0
∼
3.6V, TVDD=DVDD
∼
5.25V; Quad Speed Mode; DEM = OFF;
SLOW bit = “0”, SDDA bit = “0”)
Parameter
symbol
min
typ
max
Units
Digital Filter
Passband
-0.02B
PB
0
-
87.0
kHz
-6.0dB
-
95.9
-
kHz
Stopband
SB
105
-
-
kHz
Passband Ripple
PR
-
-
±0.06
dB
Stopband Attenuation
SA
70
-
-
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
-
+0/-1
-
dB
Frequency Response: 0
∼
80.0kHz
Note 18. The passband and stopband frequencies scale with fs. Each response refers to that of 1kHz.
Note 19. Delay time caused by digital filtering. This time is from setting the 16/20/24bit data of both channels to input
register to the output of analog signal.
MS1258-E-01
- 12 -
2011/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
