ASAHI KASEI
[AK4528]
Parameter
min
typ
max
Units
Power Supplies
Power Supply Current
Normal Operation (PDN=“H”)
VA
38
10
18
57
20
36
mA
mA
mA
VD+VT
(fs=44.1kHz)
(fs=96kHz)
Power-down mode (PDN=“L”)
(Note 7)
VA
10
10
100
100
mA
mA
VD+VT
Note: 7. All digital input pins are held VD or DGND.
FILTER CHARACTERISTICS
(Ta=25°C; VA, VD=4.75 ~ 5.25V; VT=2.7 ~ 5.25V; fs=44.1kHz; DEM=OFF)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 8) -0.005dB
-0.02dB
PB
0
-
-
-
19.76
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
20.02
22.20
22.05
-
-
-
-0.06dB
-6.0dB
Stopband
SB
PR
SA
GD
DGD
24.34
Passband Ripple
Stopband Attenuation
Group Delay
±0.005
80
(Note 9)
31
0
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 8) -3dB
FR
0.9
2.7
6.0
Hz
Hz
Hz
-0.5dB
-0.1dB
DAC Digital Filter:
Passband
(Note 8) -0.01dB
-6.0dB
PB
0
-
24.1
20.0
-
kHz
kHz
kHz
dB
dB
1/fs
22.05
30
Stopband
SB
PR
SA
GD
Passband Ripple
Stopband Attenuation
Group Delay
±0.005
75
(Note 9)
DAC Digital Filter + SCF:
Frequency Response:
FR
0 ~ 20.0kHz
~ 40kHz (Note 10)
±0.2
±0.3
dB
dB
Note: 8. The passband and stopband frequencies scale with fs.
For example, 20.02kHz at -0.02dB is 0.454 x fs. The reference frequency of these responses is 1kHz.
9. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to
setting the 24bit data of both channels to the output register for ADC.
For DAC, this time is from setting the 24bit data of both channels on input register to the output of analog signal.
10. fs=96kHz.
MS0011-E-00
2000/1
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
