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Description of video circuit
2) MSP
Overview of MSP
The MSP receives the digital Sound IF signal from the DRX part.
The MSP is able to demodulate all TV sound standards worldwide including the digital NICAM
system.
INPUT :
SIF(DRX)
MSP of VCTI
Audio signal(External device)
CD4052(IC33, Switching)
78&79 pin of VCTI(IC29)
MSP
of VCTI
OUTPUT :
84 & 85 of VCTI
TDA1517(IC25 & IC30)
Features
Sound Demodulator:
- worldwide FM/AM-mono demodulation
- FM carrier based demodulation (A2, EIA-J)
- FM stereo radio & RDS demodulation
- Nicam demodulation
- BTSC/SAP with MNR (DBX optional)
- automatic standard detection
- automatic sound select
Audio processing for loudspeaker channel:
- volume
- automatic volume correction (AVC)
- bass & treble or equalizer
- loudness
- balance
- spatial effect (e.g. pseudo stereo)
