AKD4645A-A Datasheet, PDF (28/53 Pages) Asahi Kasei Microsystems – Evaluation board Rev.1 for AK4645A

ASAHI KASEI
[AKD4645A-A]
+0
-10
-20
-30
-40
-50
-60
d
-70
B
-80
F
S
-90
-100
-110
-120
-130
-140
-150
-160
20
AK4645A LIN2->ADC(MIC=+20dB) FFT
fs=44.1kHz,fin=1kHz,No Signal
50
100
200
500
1k
2k
Hz
5k
10k
20k
Figure 24. FFT Plot (No signal)
AK4645A LIN2->ADC(MIC=+20dB) THD+N vs. Input Level
fs=44.1kHz,fin=1kHz
-70
-72
-74
-76
-78
-80
-82
d
-84
B
F
-86
S
-88
-90
-92
-94
-96
-98
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Figure 25. THD+N vs. Input Level
< KM094901>
- 28 -
2009/10