ASAHI KASEI
[AK4112A]
n Non-PCM Bitstream timing
1)When Non-PCM preamble is not coming within 4096 frames,
PDN pin
Bit stream
AUTO
Pa Pb Pc1 Pd1
Pa Pb Pc2 Pd2
Pa Pb Pc3 Pd3
Repetition time
>4096 frames
Pc Register
Pd Register
“0”
“0”
Pc1
Pc2
Pc3
Pd1
Pd2
Pd3
2)When Non-PCM bitstream stops
ERF hold time
ERF pin
<20mS (Lock time)
Bit stream
AUTO
Pa Pb Pc1 Pd1
Stop
2~3 Syncs (B,M or W)
Pa Pb Pcn Pdn
<Repetition time
Pc Register
Pd Register
0
1
Pc
n
Pc
Pc
0
1
Pd
n
Pd
Pd
MS0020-E-00
2000/3
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