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[AKD4558-A]
<KM116602>
2015/04
AK4558 FFT ADC (LIN/RIN:L/R)
[fs=48kHz, fin=1kHz, no signal]
-180
+0
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
Figure 16. ADC – FFT (No Signal) [fs = 48kHz]
AK4558 THD+N vs Amplitude ADC (LIN/RIN:L/R)
[fs=48kHz, fin=1kHz]
-140
+0
-120
-100
-80
-60
-40
-20
dBr
-120
-70
-115
-110
-105
-100
-95
-90
-85
-80
-75
d
B
F
S
Figure 17. ADC – THD+N vs. Amplitude (Input Level) [fs = 48kHz]
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