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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 TBA540 should be used. Furthermore, the TCA640 incorporates a blanking circuit, a burst gating circuit and a colour killer detector.
Supply voltage Supply current
QUICK REFERENCE DATA
Vl4- 2 Il4
nom. nom.
TCA640 Datasheet
