AKD4682-A Datasheet, PDF (25/51 Pages) Asahi Kasei Microsystems – 24bit CODEC that has two channels of ADC and four channels of DAC

ASAHI KASEI
2. DAC part
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d
-70
B
r
-80
A
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20
(DAC fs=48kHz)
AK4682 FFT fs=48kHz 0dBFS input
AVDD1=AVDD2=DVDD1=DVDD2=5.0V, TVDD=3.3V, PVDD=9.0V
50
100
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500
1k
2k
5k
Hz
Figure 19. FFT(Input Frequency =1kHz, Input Level=0dBFS)
[AKD4682-A]
10k
20k
+0
-10
-20
-30
-40
-50
-60
d
-70
B
r
-80
A
-90
-100
-110
-120
-130
-140
-150
-160
20
AK4682 FFT(Out of Band Noise) fs=48kHz No signal input
AVDD1=AVDD2=DVDD1=DVDD2=5.0V, TVDD=3.3V, PVDD=9.0V
50
100
200
500
1k
2k
Hz
5k
10k
20k
Figure 20. FFT(Input Frequency =1kHz, Input Level=0dBFS,Notch=on)
50k
100k
<KM086400>
- 25 -
2007/02