ak4520a AKM Semiconductor, Inc., ak4520a Datasheet - Page 6

• Manufacturer Part Number: ak4520a
• Description: 100db 20bit Stereo Adc & Dac
• Manufacturer: AKM Semiconductor, Inc.

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