AKD4640 Datasheet, PDF (16/29 Pages) Asahi Kasei Microsystems – AKD4640 EVALUATION BOARD

ASAHI KASEI
[AKD4640]
2-2. DAC (DAC à HPL/HPR) PLOT DATA
AKM
AK4640 HP THD+N vs. Input Level (DAC -> HP)
VDD=3.3V, fs=44.1kHz, fin=1kHz
-60
-65
-70
-75
d
B
r
-80
A
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Red Solid
3
Anlr.THD+N Ampl Left
1
2
Blue Solid
3
Anlr.THD+N Ampl Left
ADDA.at2c
Figure 16. THD+N vs. Input Level
AKM
AK4640 HP THD+N vs. Input Frequency (DAC -> HP)
VDD=3.3V, fs=44.1kHz, Input=-3dBFS
-50
-55
-60
-65
d
-70
B
r
-75
A
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
Hz
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Red Solid
3
Anlr.THD+N Ampl Left
1
2
Blue Solid
3
Anlr.THD+N Ampl Left
ADDA.at2c
Figure 17. THD+N vs. Input Frequency
5k
10k
20k
<KM072300>
- 16 -
2003/07