
ASAHI KASEI
[AK4520A]
0163-E-00
1997/3
- 6 -
Parameter
min
typ
max
Units
 Power supply Current     VA=VD=5V
 Analog
   VA
 AD
 DA
 Digital
   VD
  (Note 8 )
 DA
 VA+VD
 Power down  PWAD="L",PWDA="L"
Note:8 The typical supply current of VD drops to AD+DA=5.5mA, AD=3.5mA, DA=2mA at 3.0V supply
voltage.
 AD+DA
 PWAD="H",PWDA="H"
 PWAD="H",PWDA="L"
 PWAD="L",PWDA="H"
 PWAD="H",PWDA="H"
 PWAD="H",PWDA="L"
 PWAD="L",PWDA="H"
41
17
25
10
6
4
0.2
62
26
38
15
9
6
0.4
mA
mA
mA
mA
mA
mA
mA
 AD+DA
 AD
FILTER CHARACTERISTICS
    (Ta=25
°
C; VA,VD=2.7
~
5.5V; fs=44.1kHz; DEM0="1", DEM1="0")
Parameter
 ADC Digital Filter(Decimation LPF):
 Passband     (Note 9 )
 -0.005dB
 -0.02dB
 -0.06dB
 -6.0dB
 Stopband
 Passband Ripple
 Stopband Attenuation
 Group Delay            (Note 10 )
 Group Delay Distortion
 ADC Digital Filter(HPF):
 Frequency Response (Note 9 ) -3dB
 -0.5dB
 -0.1dB
 DAC Digital Filter:
 Passband    (Note 9 )
 -0.06dB
 -6.0dB
 Stopband
 Passband Ripple
 Stopband Attenuation
 Group Delay                          (Note 10 )
 DAC Digital Filter+Analog Filter:
 Frequency Response  0
~
20.0kHz
Notes: 9. The Passband and stopband frequencies scale with fs. For example, 20.02kHz at -0.02dB is
0.454 x fs.
10. The calculating delay time which occurred by digital filtering. This time is from the input of analog
signal to setting the 20bit data of both channels to the output register for ADC.
For DAC, this time is from setting the 20bit data of both channels on input register to the output of
analog signal.
Symbol
min
typ
max
Units
PB
0
0
0
0
19.76
20.02
20.20
22.05
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
SB
PR
SA
GD
GD
24.34
±
0.005
80
29.3
0
FR
0.9
2.7
6.0
Hz
Hz
Hz
PB
0
0
20.0
22.05
kHz
kHz
kHz
dB
dB
1/fs
SB
PR
SA
GD
24.1
±
0.06
43
14.7
FR
±
0.1
dB