General Description

The FMS6414 Dual Channel Video Filter – Driver Chip offers comprehensive video filtering for set top box or DVD applications. This part consists of two 4th order video Low Pass Filters for video filtering. This device integrates video drivers so that it can directly drive to the outside world.

The video signals are filtered at 7.1MHz and buffered to drive 2Vp-p into AC coupled 150Ω loads with up to 35pF of load capacitance at the output pin. The filters approximate a 4th-order Butterworth characteristic with an optimization toward low overshoot and flat group delay. Likewise, they are capable of driving a 75Ω load at 1Vp-p. There is an option for the video output to be DC coupled which limits the drive to 1 output.

Video Features

• Dual Integrated Video Low Pass reconstruction filters on outputs

• Integrated output drivers provide low impedance outputs

and deliver 2Vp-p (6dB gain) composite video into 150Ω.

• 7.1MHz 4th order video filters

• 0.4 differential gain with 0.4° differential phase

• Integrated DC Restore / Clamp Circuitry

Applications

• CCTV

• Cable and Satellite Set top boxes

• DVD players

• Televisions

• HDTV

• Personal Video Recorders (PVRs)

• Video On Demand (VOD)