Philips TDA2549 Datasheet page 6

Philips Semiconductors
I.F. amplifier and demodulator for
multistandard TV receivers
Fig.2 A.F.C. output voltage V
Fig.4 Video output waveform showing white spot and noise inverter threshold levels.
April 1985
for positive a.f.c.
15-3
Fig.3 A.F.C. output voltage V
6
Product specification
TDA2549
for negative a.f.c.
15-3