ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 18

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

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The AK4141 receives the Sound IF(SIF) signal and demodulates/decodes according to NICAM/A2/EIA-J standards. The
AK4141 can automatically select the stereo standard according to the actual input signal, the A4M5[2-0] pins(XORed
with A4M5[2-0] bits, default = “011”) and the A6M5 pin (XORed with A6M5 bit) setting.
MS0952-E-00
Multi-standard Stereo Decoding
Table 5. Decoder Standard Preference 2 (for 4.5MHz carrier. Pin control. A4M5[2-0] bits = “011”(default))
Table 6. Decoder Standard Preference 2 (for 4.5MHz carrier. Register control. A4M5[2-0] pins = “LLL”)
0 (default)
0 (default)
A6M5 bit
1
1
A4M5[2-0] pins
A4M5[2-0] bits
Table 4. Decoder Standard Preference 1 (for 6.5MHz carrier)
HHH
LHH
HLH
HHL
LLH
LHL
HLL
LLL
00H
01H
02H
03H
04H
05H
06H
07H
A6M5 pin
H
H
L
L
Decoder Standard Preference2
Decoder Standard Preference2
PAL (Chroma Carrier)
PAL (Chroma Carrier)
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D/K1, D/K2, D/K3 or D/K NICAM
D/K1, D/K2, D/K3 or D/K NICAM
M-Korea
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
M-Korea
Reserved
Reserved
Reserved
Reserved
Decoder Standard Preference1
EIAJ
EIAJ
SECAM L NICAM
SECAM L NICAM
[AK4141]
2008/05