SET-TOP BOX VIDEO FILTERS

These multichannel video post  filters contain all the filtering and buffering required to interface a digital video encoder directly to a 75 ohm Composite and Y/C output. Most oversampled encoders do not provide Sinx/x correction and introduce significant DC offset due to operation from a single supply rail. In addition the output impedance of voltage mode DACs are subject to large tolerances which can introduce large gain variations when loaded by external filters.

These video filters are Sinx/x corrected and available either with or without group delay correction. In addition they have a high input impedance which reduces significantly the gain variation of the encoder and are DC coupled with offset adjustment.

Features of these Video Filters

	Two Composite and one Y/C output from one Y/C input.		Designed for Philips video encoders (SAA7185, SAA7199).
	Group delay equalisation provided on AH1013.		Excellent Differential Gain and Phase.
	Accurate Sinx/x correction for 27 MHz sampling.		DC coupling eliminates tilt problems.