ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 57

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

ASD
SYS[3:0]
MS0952-E-00
Addr
41H
SYS[3:0] TV System
0CH-0EH FM-Radio
Enable automatic system detection. ASD is initiated when a 1 is written to this bit. Automatically returns to 0 when
ASD is complete.
TV system select. This register is overridden by automatic system detection when it is initiated. It Becomes
read-only while ASD is enabled, but returns to R/W when ASD is completed. Note that if ASD cannot identify the
system, SYS[3:0] will be set to 0xF and the decoder will be set to the FM-Stereo (Radio-Europe) mode.
0AH
0BH
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0FH
B/G
B/G
L
I
D/K
D/K
D/K
D/K
M/N
M/N
M/N
FM-Radio
FM-Radio
Register Name
System Select
Default
R/W
Table 42. TV system select (N/A: NOT available) (N/A: Not available)
ASD
00H
01H
Sound Carrier Positions
5.5/5.7421875
5.5/5.85
6.5/5.85
6.0/6.552
6.5/6.2578125
6.5/6.7421875
6.5/5.7421875
6.5/5.85
4.5/4.724212
4.5
4.5
4.5
4.5
4.5
Table 41. Automatic system detection
R/W
D7
0
Automatic system detection
R/W
D6
0
0
Disabled
Enabled
Sound Modulation
FM-Stereo (A2)
FM-Mono/NICAM
AM-Mono/NICAM
FM-Mono/NICAM
FM-Stereo (A2, D/K1)
FM-Stereo (A2, D/K2)
FM-Stereo (A2, D/K3)
FM-Mono/NICAM (D/K, NICAM)
FM-Stereo (A2)
FM-Stereo (EIA-J)
N/A
FM-Stereo (Radio - US)
FM-Stereo (Radio - Europe)
Unknown/FM-Stereo (Radio - Europe)
- 57 -
R/W
D5
0
ASD
R/W
D4
0
R/W
D3
1
(default)
R/W
D2
1
SYS[3:0]
R/W
D1
1
(default)
[AK4141]
2008/05
R/W
D0
1