AKD4390-SA Datasheet, PDF (14/29 Pages) Asahi Kasei Microsystems – AK4390 Sound quality evaluation board Rev.2

[AKD4390-SA]
AKM
+0
-10
-20
-30
-40
-50
-60
-70
d
-80
B
r
-90
A
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
AKM
+0
-10
-20
-30
-40
-50
-60
-70
d
-80
B
r
-90
A
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
(fs=44.1kHz)
AK4390 FFT
fs=44.1kHz,No signal input
03/05/08 20:09:46
50
100
200
500
1k
2k
Hz
Figure 3 FFT (Noise Floor)
AK4390 FFT Out of band noise
fs=44.1kHz,No signal input
5k
10k
20k
03/05/08 20:11:26
50
100
200
500
1k
2k
Hz
5k
10k
20k
Figure 4 FFT (Out of band noise)
50k
100k
<KM093004>
14
2009/02