© 2006 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FMS6146 • Rev. 1.1.0

October 2009

FMS6146

Low-Cost Six-Channel 4th-Order

Standard Definition Video Filter Driver

Features

Six 4th-Order 8MHz (SD) Filters

Transparent Input Clamping

AC- or DC-Coupled Inputs

AC- or DC-Coupled Outputs

DC-Coupled Outputs Eliminate AC-Coupling Capacitors

5V Only

Robust 8kV ESD Protection

Lead-free TSSOP-14 Package

Applications

Cable Set-Top Boxes

Satellite Set-Top Boxes

DVD Players

HDTV

Personal Video Recorders (PVR)

Video On Demand (VOD)

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Description

The FMS6146 Low-Cost Video Filter (LCVF) is intended

to replace passive LC filters and drivers with a low-cost

integrated device. Six 4th-order filters provide improved

image quality compared to typical 2nd or 3rd-order

passive solutions.

The FMS6146 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 the 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 (see the

Applications section for details)

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Ordering Information

Part Number

Operating

Temperature Range

Eco Status

Package

Packaging Method

FMS6146MTC14X

-40°C to +85°C

RoHS

TSSOP-14

Tape and Reel

Functional Block Diagram

IN1

IN2

IN3

IN4

IN5

IN6

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

8MHz, 4th order

6d

B

Transparent Clamp

6d

B

Transparent Clamp

6d

B

Transparent Clamp

6d

B

Transparent Clamp

6d

B

Transparent Clamp

6d

B

Transparent Clamp

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