TCA640 CHROMINANCE AMPLIFIER FOR SECAM OR PAL/SECAM DECODERS The TCA640 is an integrated chrominance amplifier for either a SECAM decoder or a double standard PAL/SECAM decoder.
Switching of the standard is performed internally, controlled by an external applied d.
c .
signal.
In addition to the chrominance amplifier the c i r c u i t a l s o i n c o r p o r a t e s a 7, 8 kHz flip-flop and an identification c i r c u i t for SECAM.
F o r PAL identification the c i r c u i t included in the TB
