TDA4443 datasheet(2/7 Pages) STMICROELECTRONICS

No de pièce	TDA4443

Description	MULTISTANDARD VIDEO IF AMPLIFIER

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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16

1

WIDE BAND AMPLIFIER

DEMODULATOR

VIDEO

IW

11

10

9

8

7

SUPPLY

UNIT

GATING

AMPLIFIER

13

45

6

VIDEO

OUTPUT

GATING

PULSE

IF INPUT

TUNER

AGC

OUTPUT

TUNER

AGC

ADJUST

V

CC

2

STANDARD

SWITCH

3

15

V

S

CONTROL

AMPLIFIER

TUNER

CONTROL

TDA4443

BLOCK DIAGRAM

GENERAL DESCRIPTION

This video IF processing circuit integrates the fol-

lowing functional blocks :

.

Three symmetrical, very stable, gain controlled

wideband amplifier stages - without feedback

by a quasi-galvanic coupling.

.

Demodulator controlled by the picture carrier

.

Video output amplifier with high supply voltage

rejection

.

Polarity switch for the video output signal

.

AGC on peak white level

.

Gated AGC

.

Discharge control

.

Delayed tuner AGC

.

At VTR Reading mode the video output signal

is at ultra white level

TDA4443

2/7

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TEMIC Semiconductors	TDA4439	105Kb / 7P	Video IF Amplifier for Multistandard TV and VTR
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TEMIC Semiconductors	TDA4452	181Kb / 11P	Video IF Amplifier for Multistandard TV Receiver and VTR Appliances
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NXP Semiconductors	TDA8349A	108Kb / 17P	Multistandard IF amplifier and demodulator February 1991
TEMIC Semiconductors	TDA4471	289Kb / 16P	Multistandard Video-IF and Quasi Parallel Sound Processing
	TDA4470-M	189Kb / 16P	Multistandard Video-IF and Quasi Parallel Sound Processing
	TDA4474	156Kb / 17P	Multistandard Video-IF and Quasi Parallel Sound Processing
Siemens Semiconductor G...	TDA6160-2X	361Kb / 17P	Multistandard Sound IF
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