FMS6400 - Fairchild Semiconductor

FMS6400 Dual Channel Video Drivers

The FMS6400 is a dual Y/C 5th order Butterworth lowpass video filter optimized for minimum overshoot and flat group delay. The device also contains a summing circuit to generate filtered composite video. In a typical application, the Y and C input signals from DACs are AC coupled into the filters. Both channels have DC restore circuitry to clamp the DC input.

Features

■ 7.1 MHz 5th order Y,C filters with composite summer
■ Selectable for 0dB or 6dB gain
■ 50dB stopband attenuation at 27MHz on Y, C and CV outputs
■ Better than 0.1 dB flatness to 4.5MHz on Y,C and CV outputs
■ No external frequency selection components or clocks
■ < 5ns group delay deviation on Y, C and CV outputs
■ AC-Coupled Inputs
■ AC or DC-Coupled Outputs
■ Capable of PAL frequency selection components or clocks
■ 0.3% / 0.2° differential gain/phase on Y,C and CV channels
■ Integrated DC restore circuitry with low tilt
■ Lead (Pb) Free SOIC-8 Package Applications
■ Cable and Satellite se.