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This literature is subject to all applicable copyright laws and is not for resale in any manner.FMS6410B Dual-Channel Video Drivers with Integrated Filters and Composite Video Summer October 2006 FMS6410B Dual-Channel Video Drivers with Integrated Filters and Composite Video Summer Features Description 7.1MHz fifth-order Y,C filters with composite summer The FMS6410B is a dual Y/C fifth-order Butterworth low- pass video filter optimized for minimum overshoot and 50dB stopband attenuation at 27MHz on Y, C, and CV flat group delay. The device also contains a summing cir- outputs cuit to generate filtered composite video. In a typical Better than 0.1dB flatness to 4.5MHz on Y, C, and CV application, the Y and C input signals from DACs are AC outputs coupled into the filters. Both channels have DC restore No external frequency selection components or clocks circuitry to clamp the DC input levels during video sync. < 5ns group delay on Y, C, and CV outputs The Y and C channels use separate feedback clamps. AC-coupled inputs The clamp pulse is derived from the Y channel. AC- or DC-coupled outputs All outputs are capable of driving 2V , AC or DC cou- pp Capable of PAL frequency selection components or pled, into either a single or dual video load. A single clocks video load consists of a series 75 impedance matching 0.3% differential gain with 0.2 differential phase on resistor connected to a terminated 75 line. This pre- Y, C, and CV channels sents a total of 150 of loading to the part. A dual load is two of these in parallel, which presents a total of 75 to Integrated DC restore circuitry with low tilt the part. The gain of the Y, C, and CV signals is 6dB with Lead-free SOIC-8 package input levels. All video channels are clamped during 1V pp sync to establish the appropriate output voltage refer- Applications ence levels. Cable and satellite set-top boxes DVD players Personal Video Recorders (PVR) Video On Demand (VOD) Block Diagrams V CC 7 Sync Strip Reference and Timing Y 1 6dB 8 Y IN OUT gM 250mV + 6 CVOUT + gM 250mV CIN 4 6dB 5 COUT 3 GND Figure 1. Block Diagram 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com FMS6410B Rev. 1.0.2