CXA1810AQ datasheet(4/53 Pages) SONY

Part #	CXA1810AQ

Description	Luminance and Color Signal Processing for 8mm VCR

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Manufacturer	SONY [Sony Corporation]

Direct Link	http://www.sony.co.jp

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CXA1810AQ/AR

Pin Description

Symbol

Pin voltage

Equivalent circuit

Description

No.

DC

AC

Chroma emphasis f0 (center

frequency) adjustment. (Refer

to item 7 on Description of

Operation.)

Main emphasis and main de-

emphasis time constant.

When recording, the

emphasized Y signal prior to

white/dark clipping is output.

Main emphasis and main de-

emphasis time constant.

Apply an external constant

between this pin and Pin 2, as

shown below.

HPF time constant that forms

sub emphasis and sub de-

emphasis. Add resistance

between this pin and Pin 11.

During recording, Y emphasis

input. During playback, this

signal to the noise canceler is

input. Performs diode

clamping (sync tip clamping),

with the clamp capacitance

attached externally.

25µA

150

1

1mA

150

2

4k

100

3

100

4

100

150

5

1

C EMPH

CONT

2

MAIN

EMPH

OUT

3

MAIN

EMPH

TC

4

SUB

EMPH

TC

5

EMPH IN

Control

range:

1.8V to 3.8V

2.05V (sync

tip level)

2.05V (when

time constant

connected)

2.05V (when

time constant

connected)

2.05V (sync

tip level)

—

250mVp-p

output

—

500mVp-p

input

2

3

VG1

11

4

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CXA1810AQ Datasheet(PDF) 4 Page - Sony Corporation

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