AKD4683-B Datasheet, PDF (31/55 Pages) Asahi Kasei Microsystems – 24bit CODEC that has two channels of ADC and four channels of DAC with internal DIR, DIT

ASAHI KASEI
+0
-10
-20
-30
-40
-50
-60
d
-70
B
r
-80
A
-90
-100
-110
-120
-130
-140
-150
-160
20
50
(DAC fs=48kHz)
AK4683 FFT fs=48kHz, No signal input
AVDD1=AVDD2=DVDD=PVDD=TVDD=HVDD=5V
100
200
500
1k
2k
Hz
Figure 28. FFT(noise floor)
[AKD4683-B]
5k
10k
20k
+0
-10
-20
-30
-40
-50
-60
d
-70
B
r
-80
A
-90
-100
-110
-120
-130
-140
-150
-160
20
AK4683 FFT (Out of Band Noise) fs=48kHz, -60dB input
AVDD1=AVDD2=DVDD=PVDD=TVDD=HVDD=5V
50
100
200
500
1k
2k
Hz
5k
10k
20k
Figure 29. FFT(out-of-band noise)
50k
100k
<KM080901>
- 31 -
2006/05