AKD4645-B Datasheet, PDF (21/40 Pages) Asahi Kasei Microsystems – Stereo CODEC with built-in MIC/HP amplifier

ASAHI KASEI
+0
-10
-20
-30
-40
-50
-60
d
-70
B
-80
F
S
-90
-100
-110
-120
-130
-140
-150
-160
20
AK4645 LIN2-->ADC (MIC=+20dB) FFT
fs=44.1kHz, fin=1kHz, -1dB Input
[AKD4645-B]
50
100
200
500
1k
2k
Hz
Figure 19. FFT Plot (Input level= -1dBFs)
5k
10k
20k
+0
-10
-20
-30
-40
-50
-60
d
-70
B
-80
F
S
-90
-100
-110
-120
-130
-140
-150
-160
20
AK4645 LIN2-->ADC (MIC=+20dB) FFT
fs=44.1kHz, fin=1kHz, -60dB Input
50
100
200
500
1k
2k
Hz
Figure 20. FFT Plot (Input level= -60dBFs)
5k
10k
20k
<KM084500>
- 21 -
2006/07