AKD4569 Datasheet, PDF (18/27 Pages) Asahi Kasei Microsystems – Evaluation board Rev.A for AK4569

ASAHI KASEI
[AKD4569]
AKM
+0
-20
(DAC)
AK4569 DAC FFT (No data Input)
FFT point=16384, Avg=8, window=Equiripple
-40
-60
d
B
r
-80
A
-100
-120
-140
-160
20
50
100
200
500
1k
2k
Hz
5k
10k
20k
Color Line Style Thick Data
Axis
Red Solid
Blue Solid
3
Fft.Ch.1 Ampl Left
3
Fft.Ch.2 Ampl Left
last.at2c
Figure 14. FFT (Noise floor)
FFT points=16384, Avg=8, Window=Equiripple
AKM
+0
-20
AK4569 DAC FFT (Out-band-noise)
FFT point=16384, Avg=8, window=Equiripple
-40
-60
d
B
r
-80
A
-100
-120
-140
-160
90
200
500
1k
2k
5k
Hz
10k
20k
Color Line Style Thick Data
Axis
Red Solid
Blue Solid
3
Fft.Ch.1 Ampl Left
3
Fft.Ch.2 Ampl Left
last.at2c
Figure 15. FFT (Outband noise)
FFT points=16384, Avg=8, Window=Equiripple
50k
100k
<KM074000>
- 18 -
2004/02