DC10 E, DC20 E
TECHNICAL DESCRIPTION
16
4-4 Recorder Signal Processing
< BACK END >IC2300
• The DVD coding circuit and MI-COM circuit are integrated in a single chip.
• Video/audio data is coded through use of the IC2304 and 2305 (DDR SDRAM).
The internal MI-COM circuit carries out front-end (DVD drive) control.
The recorded signals to DVD (read-out) are handled by the front end through ATAPI communication for which the IC2306
(DDR SDRAM) is mainly used.
< FRONT END>DVD DRIVE
• At the time of recording, video/audio data fed from the back end is modulated to DVD recording data, and a DVD write control
operation is performed.
• At the time of playback, data is read out from DVD, and demodulation is performed together with error correction.
Fig. 13
IC1103
DIGIC DV
IC2102
75Ω
DRIVER
IC2304
DDR
SDRAM
IC2305
DDR
SDRAM
IC2306
DDR
SDRAM
IC2300
BACK END
FRONT END
(DVD DRIVE)
IC3500
USB IC
MI-COM
USB
TERMINAL
135MHz
ATAPI
A DATA
YC
AV
JACK
DVD
108MHz
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