ASAHI KASEI
[AKD4556-B]
<KM082901>
2006/08
-
12
-
[Plots]
ADC
fs=48kHz
AKM
AK4556 ADC FFT
fs=48kHz , -1dB Input
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-180
+0
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
Figure 4. FFT (fin=1kHz , Input Level=-1dBFS)
AKM
AK4556 ADC FFT
fs=48kHz , -60dB Input
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-180
+0
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
Figure 5. FFT (fin=1kHz , Input Level=-60dBFS)