June 1999 PRELIMINARY
ML6423* Dual S-Video Lowpass Filter with Phase and Sinx/x Equalization
GENERAL DESCRIPTION
The ML6423 monolithic Bi
CMOS 6th-order filter provides a two-channel fixed frequency lowpass filtering for video applications.
This dual phase equalized filter with sinx/x correction is designed for reconstruction filtering at the output of a Video DAC.
A composite sum output eliminates the need for a third DAC.
Cutoff frequencies are either 5.
5MHz or 9.
6MHz.
Each channel incorporates a 6th-order lowpass filter, a first order allpass filter, a gain boost circuit, and a 75W coax cable driver.
A control pin (RANGE) is provided to allow the inputs to swing from 0 to 1V, or 0.
5 to 1.
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