CXA2000 datasheet(4/48 Pages) SONY

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CXA2000Q

SECAM decoder interface. This pin

serves as both a 4.43MHz output and as

a SECAM identification input/output pin.

Pin Description

No.

Symbol

Equivalent circuit

Description

SECAMREF

–(R-Y) OUT

–(B-Y) OUT

Color difference signal outputs. Go to

high impedance when the SECAM

system is detected.

Standard output levels for 75% CB:

B-Y: 0.665Vp-p

R-Y: 0.525Vp-p

YOUT

Luminance signal output.

Black level is 3.5VDC.

Standard output level for 100 IRE input:

1Vp-p

YRET

Luminance signal input.

Clamped to 4.8V at the burst timing.

Standard input level for 100 IRE input:

1Vp-p

–(R-Y) IN

–(B-Y) IN

Color difference signal inputs.

Clamped to 5.5V at the burst timing.

Standard input levels for 75% CB:

B-Y: 1.33Vp-p

R-Y: 1.05Vp-p

SGND1

GND for Y/C block.

SGND2

GND for the RGB block.

250µA

20p

7.2V

200µA

400µA

500

30k

1.5k

70k

1.5k

70k

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CXA2000 Datasheet(PDF) 4 Page - Sony Corporation

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