ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 58

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

ID[1:0]
STD[2:0]
MS0952-E-00
Addr
Addr
42H
43H
ID detector mode. EIA-J and A2 may carry identification tones used to identify the transmitted audio mode: mono,
stereo, or bilingual. This word determines the standard that the ID detector assumes the received audio to be in. A2
has two variations of the identification tone, A2 and A2M. Normally, the contents of this word are updated
automatically to reflect the standard chosen in the system select (SYS[3:0]) register, but this word may also be
overwritten manually.
Decoding standard select. Normally, the contents of this word are updated automatically to reflect the standard
chosen in the system select (SYS[3:0]) register, but this word may also be overwritten manually.
STD[2:0]
00H
01H
02H
03H
04H
05H
06H
07H
Decoder Sample Rate
Standard Select
Default
Default
Register Name
Register Name
R/W
R/W
ID[1:0]
00H
01H
02H
03H
DECFS[1:0]
R/W
R/W
D7
00H
01H
02H
03H
D7
0
0
Table 44. Decoding Standard
Table 43. ID Detector Mode
R/W
Table 45.
R/W
D6
D6
0
0
0
ID Detector Mode
Decoding Standard
FM Radio (75µs)
FM Radio (50µs)
reserved
reserved
reserved
NICAM
- 58 -
A2M
A2M
EIAJ
EIA-J
R/W
A2
Sample Rate
Decoder Sample Rate
D5
A2
R/W
0
D5
0
48kHz
reserved
44.1kHz
32kHz
(default)
R/W
D4
R/W
0
D4
0
ID[1:0]
R/W
R/W
D3
D3
0
0
(default)
R/W
D2
R/W
1
D2
0
STD[2:0]
R/W
D1
R/W
1
D1
(default)
0
DECFS[1:0]
[AK4141]
R/W
R/W
2008/05
D0
D0
1
0