Audio Signal Flow - Canon DC10 E Service Manual

4-5 Audio Signal Flow

L
MIC
R
L
HEAD
R
PHONE
IC801
L
AV
AIF4
R
JACK
SPEAKER
DRIVER
+
−
SPEAKER
< AIF >IC801
Out ALC (Auto Level Control), fading, and amplification of various output signals. For the beep tone issued at ejection, etc., the
signal from the CCM MI-COM is generated in the circuit and changed over in the AIF.
The microphone amplifier, HPF, ALC, A/D, D/A, and digital I/F, SPEAKER DRIVER with ALC circuits are contained in this IC.
It is also used for changeover between ordinary voice sounds and beep sounds.
< BACK END >
At the time of recording, audio digital signals are compressed into a Dolby AC-3 form.
At the time of playback, demodulation processing is performed for inversion.
IC1103
IC810
DIGIC DV
AUDIO
PLL
MEM IF
SDRAM
Serial Control
IC101
B EEP
CCM
MI-COM.
Fig. 14
17
TECHNICAL DESCRIPTION
IC2300 FRONT
BACK END
END
DC10 E, DC20 E
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