ZXFV4583 SYNC SEPARATOR WITH VARIABLE FILTER DEVICE DESCRIPTION The ZXFV4583 provides the ability to separate out video synchronization signals for a wide variety of TV and CRT display systems, standard and non-standard.
Flexibility arises from the use of just three external resistors to adapt to each application.
One resistor controls a fully integrated internal color carrier filter with variable bandwidth.
This filter avoids disturbance from the color carrier, permitting accurate threshold slicing for timing extraction.
A second resistor controls the voltage threshold for loss of signal detection after a time-out interval.
The third resistor controls the timing functions.
DC restoration f...

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