AKD4640 Datasheet, PDF (17/29 Pages) Asahi Kasei Microsystems – AKD4640 EVALUATION BOARD

ASAHI KASEI
[AKD4640]
AKM
AK4640 HP Linearity (DAC -> HP)
VDD=3.3V, fs=44.1kHz, fin=1kHz
+0
-10
-20
-30
-40
d
-50
B
r
-60
A
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
dBFS
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1
Red Solid
3
Anlr.Bandpass Left
1
2
Blue Solid
3
Anlr.Bandpass Left
ADDA.at2c
AKM
+1
+0.9
+0.8
+0.7
+0.6
+0.5
+0.4
+0.3
+0.2
d
+0.1
B
r
+0
A
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
Figure 18 Linearity
AK4640 HP Frequency Response (DAC -> HP)
VDD=3.3V, fs=44.1kHz, Input=0dBFS
2k
4k
6k
8k
10k
12k
14k
Hz
Figure 19. Frequency Response
(including external HPF)
-20
16k
-10
+0
18k
20k
<KM072300>
- 17 -
2003/07