ak4523 AKM Semiconductor, Inc., ak4523 Datasheet - Page 6

• Manufacturer Part Number: ak4523
• Description: 20bit Stereo Ds Adc & Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(Ta=25°C; VA=4.5 ~ 5.5V, VD=3.0 ~ 5.5V; DEM0=”1”, DEM1=”0”)
Parameter
ADC Digital Filter (Decimation LPF):
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response
DAC Digital Filter:
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
DAC Digital Filter + Analog Filter:
Frequency Response:
Note:11. The passband and stopband frequencies scale with fs.
M0021-E-03
12. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to
For example, 20.02kHz at -0.02dB is 0.454 x fs. The reference frequency of these responses is 1kHz.
For DAC, this time is from setting the 20bit data of both channels on input register to the output of analog
signal.
setting the 20bit data of both channels to the output register for ADC.
0 ~ 20.0kHz
(Note 11)
(Note 11)
(Note 5) -3dB
(Note 12)
(Note 12)
-0.5dB
-0.1dB
-0.06dB
-6.0dB
-0.005dB
-0.02dB
-0.06dB
-6.0dB
FILTER CHARACTERISTICS
Symbol
DGD
GD
GD
PB
SB
PR
SA
FR
PB
SB
PR
SA
FR
- 6 -
24.34
24.1
min
43
80
0
0
0
0
0
0
-
14.7
±0.2
29.3
typ
0.9
2.7
6.0
0
±0.005
±0.06
19.76
20.02
20.20
22.05
22.05
max
20.0
-
[AK4523]
1999/12
Units
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
1/fs
1/fs
dB
dB
Hz
Hz
Hz
dB
dB
dB
µs