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TBA120S<br />

INTEGRATED FM/IF<br />

AMPLIFIER AND DEMODULATOR<br />

Fig. 5:<br />

Output levl:ll versus resistance<br />

from pin 5 to ground<br />

Fig. 6:<br />

Output level versus<br />

voltage at pin 5<br />

dB<br />

o<br />

12Y<br />

-10 ft: Vi .10mV I<br />

f; :s.sMHz /<br />

ILff ,:!sOkHz<br />

-20<br />

-30<br />

-GO<br />

-50<br />

-60<br />

-70<br />

-80<br />

~<br />

L I /<br />

I II<br />

I<br />

I<br />

II<br />

r<br />

TBA 120 S<br />

, -'<br />

dB<br />

o<br />

V,/:12Y<br />

Vi<br />

-10<br />

:10mY<br />

f; : 5.5MHz<br />

Lff :!sOkHz<br />

-20<br />

-30<br />

-GO<br />

-50<br />

-60<br />

-70<br />

-80<br />

I<br />

I<br />

I<br />

II<br />

TBA 120 5<br />

/<br />

-90<br />

-90<br />

-100<br />

o 2 3 4 Skrl o 0.5 IS 2 2.SY<br />

_RS<br />

, -Vs<br />

-100<br />

V6rms<br />

1<br />

V<br />

2<br />

Fig. 7:<br />

AF output voltage<br />

versus supply voltage<br />

VI/=12V<br />

RG =6011<br />

Lff, =! 50kHz<br />

Pin 5 open<br />

~<br />

TBA 120 S<br />

!<br />

k=3.7%(C=~n'J<br />

/<br />

/ 1/<br />

I / V<br />

/ ~ /<br />

/ X'=18%(C:lnFl22km<br />

%:1'1.(C:680pF/l8kQ)<br />

.,.<br />

S<br />

k 4<br />

2<br />

Flg."S:<br />

Distortion factor<br />

versus output level<br />

1\<br />

"-<br />

TBA 120 5<br />

k=l7·Io(C=IS nF<br />

1\ ~:~.8·/f=lrFl2fkQ<br />

\<br />

\ rt l'l.(C:680pF/L8krl<br />

10<br />

_VII<br />

20V<br />

0_100 -so -GO -GO -20 OdB<br />

8-34

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