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FMS6143 — Low-Cost Three-Channel 4th-Order Standard Def nition Video Filter Driver
FMS6143
Low-Cost Three-Channel 4th-Order
Standard Def nition Video Filter Driver
Features
Description
The FMS6143 Low-Cost Video Filter (LCVF) is intended
to replace passive LC f lters and drivers with a low-cost
integrated device. Three 4th-order f lters provide
improved image quality compared to typical 2nd or
3rd-order passive solutions.
The FMS6143 may be directly driven by a DC-coupled
DAC output or an AC-coupled signal. Internal diode
clamps and bias circuitry may be used if AC-coupled
inputs are required (see
Applications
section for details).
The outputs can drive AC- or DC-coupled single (150Ω)
or dual (75Ω) loads. DC-coupling the outputs removes
the need for output coupling capacitors. The input DC-
levels are offset approximately +280mV at the output
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