AKD4390-SA Datasheet, PDF (23/29 Pages) Asahi Kasei Microsystems – AK4390 Sound quality evaluation board Rev.2

[AKD4390-SA]
(fs=192kHz)
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
AK4390 FFT
fs=192kHz,No Signal Input
50
100
200
500
1k
2k
Hz
03/05/08 21:12:43
5k
10k
20k
50k 80k
Figure 20 FFT (Noise Floor)
AKM
-80
-85
AK4390 THD+N vs. Input Level
fs=192kHz,fin=1kHz
03/05/08 21:25:24
-90
-95
-100
d
-105
B
r
-110
A
-115
-120
-125
-130
-135
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 21 THD+N vs. Input level (fin=1kHz)
<KM093004>
23
2009/02