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·TDA1352<br />

TV VIDEO AMPLIFIER WITH GA TED AGe<br />

5.0<br />

FIGURE 8 -SINGLE ENDED INPUT ADM<strong>ITT</strong>ANCE<br />

4.0 /<br />

3.0<br />

bll<br />

/<br />

2.0<br />

L.<br />

,/ /<br />

~ I-"'" 911 ....... V<br />

1.0<br />

~ ~<br />

o<br />

10 20 30 40 50 70 100<br />

FREQUENCY<br />

MHz<br />

.I<br />

II<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

o<br />

FIGURE 9 - DIFFERENTIAL OUTPtlT ADM<strong>ITT</strong>ANCE<br />

(SINGl.E~NDED OUTPUT<br />

ADIl<strong>ITT</strong>ANCE EXHIBITS<br />

TWICE THESE VALUES)<br />

-.,.,<br />

V<br />

~2~<br />

/<br />

-<br />

V<br />

!-- V<br />

922<br />

I--<br />

10 20 30 40 50 70 100<br />

FREQUENCY<br />

MHz<br />

/<br />

FIG. 11<br />

r-"~~J"-'1-'-'-'''8D<br />

I-~..-'r-+-r""r.,.l--~+-I--i 7.0<br />

> > > > TUNER<br />

5 ~. ~ ~ AGC -t- 6.0<br />

t-..t:HI-1tt-t-tt-t-tt----1_+-i--I 5.0<br />

r--r~~~~t-t-t+--r--r--1_~4.o<br />

r--t1HHH-1Hf--l--H---r-+--f-~ 3.0<br />

t--HI-II-I-Hr-~'V--t--t-t-TUNER AGe DELAY<br />

I I I<br />

2.0<br />

IFGAIN REDUCTION 1.0<br />

o<br />

5.0 55 6.0 6.5 7.0 7.5 8.0 8.5<br />

AGC INPUT VOLTAGE v<br />

22<br />

III<br />

"0 20<br />

18<br />

'" 16<br />

~<br />

iL 14<br />

~ 12<br />

~<br />

10<br />

8.0<br />

-' /<br />

L ....... ..........<br />

L L<br />

"/<br />

f=5811~<br />

/ ./ V<br />

./<br />

6.0<br />

o 10 20 30 40<br />

AGC GAIN REOUCTION<br />

1/ I}<br />

L<br />

f=35I1Hz .. 4511Hz<br />

dB<br />

400<br />

200<br />

100<br />

FIG.~2<br />

o<br />

1.0 2D<br />

~<br />

IIAX~<br />

50 10 20<br />

FREQUENCY<br />

II<br />

~da GAIN<br />

" REDUCTION<br />

1'\"<br />

1\<br />

"<br />

o<br />

-20<br />

-40<br />

-60<br />

-80<br />

-100<br />

-120<br />

-140<br />

-160<br />

-180<br />

-200<br />

60 100<br />

MHz<br />

> 8.0<br />

7.0<br />

'" 6.0<br />

~<br />

~ 5.0<br />

~ 4.0<br />

IS 5.0<br />

I 2.0<br />

'" 1.0<br />

!;;<br />

Q 0<br />

FIG. 13<br />

1\<br />

I\, " .......... VOl :::I 14V<br />

" .......... V .. = 12V<br />

o 10 20 30 40 50 60 70 60<br />

GAIN REDUCTION<br />

dB<br />

8-49

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