AKD4399-SB Datasheet, PDF (14/31 Pages) Asahi Kasei Microsystems – AK4399 Sound quality evaluation board Rev.4

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)
AK4399 FFT
AVDD=DVDD=5V, fs=44.1kHz, No signal Input
[AKD4399-SB]
50
100
200
500
1k
2k
Hz
Figure 9. FFT (Noise Floor)
5k
10k
20k
AK4399 FFT Out of band noise
AVDD=DVDD=5V, fs=44.1kHz, No signal Input
50
100
200
500
1k
2k
Hz
5k
10k
20k
Figure 10. FFT (Out of band noise)
50k
100k
<KM093703>
14
2009/10