AKD4126-A Datasheet, PDF (9/29 Pages) Asahi Kasei Microsystems – digital sample rate converter.

ASAHI KASEI
[AKD4126-A]
(3). Set up other modes
(3)-1. Set up TEST Pin, Soft Mute Cycle Mode, De-emphasis Filter Mode and Channel Mode of the
AK4126 (U1)
Set up TEST Pin, Soft Mute Cycle Mode, De-emphasis Filter Mode and Channel Mode of the AK4126 (U1) by
SW3. About setting of default, please refer to Table16. About setting except default, please refer to Table17,
Table18, and Table19.
• Set up SW3
ON is “H”, and OFF is “L”.
Setting of default is as follows. (Please refer to Table 16.)
SW3
No.
1
2
3
4
5
6
7
8
Name
TI2
TI1
TI0
SMT1
SMT0
DEM1
DEM0
PM
ON (“H”)
OFF (“L”)
AK4126 TEST Pin
Fixed to “L”.
AK4126 Soft Mute Cycle Mode Setting (On Manual Mode)
Please refer to Table 17.
AK4126 De-emphasis Filter Mode Setting
Please refer to Table 18.
AK4126 Channel Mode Setting
Please refer to Table 19.
Table 16. SW3 Setting
Default
L
L
L
L
L
L
H
L
Mode SMT1 SMT0
pin
pin
Period
Soft Mute Cycle
fso=48kHz fso=96kHz fso=192kHz
0
L
L
1024/fso 21.3ms
10.7ms
5.3ms
1
L
H
2048/fso 42.7ms
21.3ms
10.7ms
2
H
L
4096/fso 85.3ms
42.7ms
21.3ms
3
H
H
8192/fso 170.7ms
85.3ms
42.7ms
Table 17. AK4126 Soft Mute Cycle Mode Setting (On Manual Mode)
(Default)
Mode DEM1 DEM0 De-emphasis
pin
pin
Filter
0
L
L
44.1kHz
1
L
H
OFF
(Default)
2
H
L
48kHz
3
H
H
32kHz
Table 18. AK4126 De-emphasis Filter Mode Setting
Mode PM Channel
pin
Mode
0 L 6-channel (Default)
1 H 4-channel
Table 19. AK4126 Channel Mode Setting
<KM083203>
-9-
2007/01