Canon DC20 E Specifikace stáhnout pdf (Strana 55)

DC10 E, DC20 E

TECHNICAL DESCRIPTION

4-5 Audio Signal Flow

< 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.

Fig. 14

SPEAKER

DRIVER

IC101

CCM

MI-COM.

IC801

AIF4

IC1103

DIGIC DV

IC2300

BACK

END

IC810

AUDIO

PLL

FRONT

END

−

MIC

HEAD

PHONE

JACK

B EEP

Serial Control

SPEAKER

MEM IF

SDRAM

DVD

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 205 206

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