Recorder Signal Processing - Canon DC10 E Service Manual

4-4 Recorder Signal Processing

IC1103
DIGIC DV
< 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.
IC2306
DDR
SDRAM
108MHz
A DATA
IC2300
BACK END
MI-COM
Y C
IC2102
75Ω
DRIVER
Fig. 13
16
TECHNICAL DESCRIPTION
DVD
ATAPI
FRONT END
(DVD DRIVE)
135MHz IC2304
DDR
SDRAM
IC2305
DDR
SDRAM
USB
IC3500
TERMINAL
USB IC
AV
JACK
DC10 E, DC20 E