FMS6145_08 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Low-Cost Five-Channel 4th-Order Standard Defi nition Video Filter Driver

FMS6145
Low-Cost Five-Channel 4th-Order
Standard Definition Video Filter Driver
February 2008
Features
■ Five 4th-order 8MHz (SD) filters
■ Drives single,AC- or DC-coupled, video loads (2V_pp, 150Ω)
■ Drives dual, AC- or DC-coupled, video loads (2V_pp, 75Ω)
■ 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)
Description
The FMS6145 Low-Cost Video Filter (LCVF) is intended
to replace passive LC filters and drivers with a low-cost
integrated device. Five 4th-order filters provide improved
image quality compared to typical 2nd or 3rd-order
passive solutions.
The FMS6145 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 (see
Applications section for details).
Functional Block Diagram
IN1
Transparent Clamp
6dB
OUT1
IN2
Transparent Clamp
6dB
OUT2
IN3
Transparent Clamp
6dB
OUT3
IN4
Transparent Clamp
6dB
OUT4
IN5
Transparent Clamp
6dB
8MHz, 4th order
OUT5
Ordering Information
Part Number
Package
Pb-Free
FMS6145MTC14
TSSOP-14
Yes
FMS6145MTC14X
TSSOP-14
Yes
All packages are lead free per JEDEC: J-STD-020B standard.
© 2006 Fairchild Semiconductor Corporation
FMS6145 Rev. 2.0.5
Operating
Temperture Range
-40°C to +85°C
-40°C to +85°C
Packaging
Method
Tube
Tape and Reel
www.fairchildsemi.com