AKD4682-A Datasheet, PDF (27/51 Pages) Asahi Kasei Microsystems – 24bit CODEC that has two channels of ADC and four channels of DAC

ASAHI KASEI
+0
-10
-20
-30
-40
-50
-60
d
-70
B
r
-80
A
-90
-100
-110
-120
-130
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-160
20
(DAC fs=48kHz)
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 23. FFT(out-of-band noise)
[AKD4682-A]
50k
100k
AKM
AK4682 THD+N vs Input Level fs=48kHz
AVDD1=AVDD2=DVDD1=DVDD2=5.0V,TVDD=3.3V,PVDD=9.0V
-80
-82.5
-85
-87.5
-90
-92.5
-95
d -97.5
B
r -100
A ^-102.5
-105
-107.5
-110
-112.5
-115
-117.5
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
dBFS
Figure 24. THD+N vs Input Level (Input Frequency =1kHz)
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<KM086400>
- 27 -
2007/02