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July 1992 18
Philips Semiconductors Preliminary specification
Small signal combination IC for black/white TV
TDA8303
TDA8303A
Table 1 Switching levels coincidence detector
CONDITION
V
22
CONTROL SENSITIVITY
HORIZONTAL OSCILLATOR (kHz/µS)
T2 - T1 T3 = SCAN
V
22
> 6.7 V
and
strong signal 11.3 7.6
weak signal 1.3 1.3
1 < V
22
< 5.7 V
and
strong signal 11.3 7.6
weak signal 11.3 7.6
V
22
< 0.7 11.3 7.6
Fig.10 Switching levels coincidence detector.
Fig.11 Anti-top-flutter pulse.