UTCTA7611AP LINEAR INTEGRATED CIRCUIT

QW-R111-004,A

FM IF/AM TUNER SYSTEM

DESCRIPTION

The UTC TA7611AP is a monolithic integrated circuit,

designed for the VIF stage in color and B/W TV receiver. The

UTC TA7611AP is used for Forward AGC type.

FEATURES

*High gain wide brand IF amplifier

*Gain reduction with excellent stability

*Excellent DG/DP and S/N characteristics

*Negative video output signal

*Fast AGC action due to noise inverter and peak AGC

*Switch off the video part VTR SW

FUNCTIONS

*Three controlled IF amplifier stages

*Video demodulator controlled by picture carrier

*Black noise and white noise inverter

*Peak AGC

*DC amplifier for RF AGC output

*Quadrature detector for AFT

*DC amplifier for AFT

DIP-16

BLOCK DIAGRAM

3

14

4

2

16

1

15

13

12

8

9

5

7

10

11

6

NC

NC

NC

NC

Vcc

VIDEO

OUTPUT

NOISE

INVERTER

IF INPUT

AGC1

AGC2

AGC3

RF AGC

RELAY

IF AGC FILTER

IF 2

IF 1

IF 3

VIDEO AMP.

RF AGC

OUTPUT

VIDEO

TANK