CASIO KX-723B
Manual de Servicio

3 CCD (IC802) A charge-coupled device in which charges are introduced when light from a scene is focused on the surface of the device. The image points are accessed sequentially to produce a television-type output signal.

532(H) 508(H)

Effective picture element: 249,936 = 508 (H) x 492 (V) PHIS1~PHIS4: Clock pulse for the storage.

PHI4 3 PHI3 4 5 PHI2 PHI1 6

VGG Amp. Output VOG
PHIR 7 VDD 8 Vout 9 12 13
Sample Hold,

Image pickup

500(V)

PHI1~PHI4: Clock pulse for the image pickup. PHIH1~PHIH2: Clock pulse for the horizontal shift register. PHIR: CCD analog signal output.

PHIH2

Storage

PHIS4 PHIS1 PHIS2 PHIS3

19 18 17 16

PHIH1
15

492(V)

Horizontal shift register (CCD)

14

4 Camera Signal Processor (IC801)

From CCD

AGC

8bit A/D Converter

D0~D7

D0~D7: Digital signal of the luminance and the color difference B-Y and R-Y signal. CCD IN: CCD analog signal input. VI1~VI4/VS1~VS4: Clock pulse for the CCD control signal.

to CCD

Timing Generator

From/to CPU

Sample Hold Selects a desired signal from the CCD. Timing Genarator Generates the clock pulse for the CCD. 8-bit AD converter Analog signal from the CCD is converted into 8-bit digital signal of the luminance and the color difference B-Y and R-Y signal. .
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