ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 76

• Manufacturer Part Number: ak4141
• Description: Nicam/a2/eia-j Digital Stereo Decoder
• Manufacturer: AKM Semiconductor, Inc.

AVCE: AVC Enable
DDEC[1:0]: Decoder AVC Decay time
DATK[1:0]: Decoder AVC Attack time
PRECTL
MS0952-E-00
Addr
Addr
5CH
5DH
Level prescaler mode. The prescaler is positioned prior to the Automatic Volume control. When in automatic mode,
the left and right prescaler levels will be adjusted to output the same level from different standards of normal broad
cast’s signal.
Level Prescaler Control
DATK[1:0]
DDEC[1:0]
Default
Default
Register Name
Register Name
Decoder AVC
R/W
R/W
0H
1H
2H
3H
0H
1H
2H
3H
PRECTL
AVCE
00H
01H
00H
01H
R/W
R/W
D7
D7
0
0
Table 93. Decoder AVC Decay time
Table 95. Level Prescaler Mode
Table 94. AVC Decay time
Table 92. AVC Enable
R/W
R/W
Level Prescaler Mode
D6
D6
0
0
0
AVC Attack time
AVC Decay time
AVC status
Automatic
Disabled
Enabled
Manual
1.4 seconds
2.7 seconds
5.5 seconds
- 76 -
85 msec
11 msec
21 msec
44 msec
85 msec
R/W
R/W
D5
D5
0
0
R/W
R/W
D4
D4
0
0
0
DATK[1:0]
R/W
R/W
D3
D3
0
0
(default)
(default)
R/W
R/W
D2
D2
0
0
DDEC[1:0]
(default)
(default)
R/W
R/W
D1
D1
0
0
[AK4141]
PRECTL
AVCE
R/W
R/W
2008/05
D0
D0
0
1