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1
1. CIRCUIT DESCRIPTIONS
A
Recently, most CD LSI's have included DAC, RF amplifier and other peripheral circuits, as well as the core circuit DSP.
This series of mechanisms employ a multi-task LSI UPD63760GJ, which has CD-ROM decoder and MP3 decoder in
addition to the CD block as shown in the Fig.1.0.1. This enables to reproduce a CD-ROM where MP3 data is recorded.
Plus, in this lineup, there are WMA supported models available where WMA decoder UPD61002GC is added.
CXK5660 --- WMA non-supported
CXK5661 --- WMA supported
B
C
Drive output
D
Fig.1.0.1 Block diagram of CD LSI UPD63760GJ
E
F
2
1
2
A-F
CD-ROM
decoder
RF amplifier
EFM
Digital servo
Microcomputer
CX-3057
2
3
DRAM
BMC
MP3
Signal
decoder
processor
DAC
UPD63760GJ
3
4
Audio output
4
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