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Lead (Pb) Free packages- TSSOP-20
Description
The FMS6246 Low Cost Video Filter (LCVF) is intended to
replace passive LC filters and drivers with a low-cost integrated
device. Six 6th order Butterworth filters provide improved image
quality compared to typical passive solutions. The combination
of low power Standard Definition (SD) and Progressive Scan
(PS) filters greatly simplify DVD video output circuitry. Three
channels offer fixed SD filters while the other three are select-
able between SD and PS filters.
The FMS6246 offers a fixed gain of 6dB. A metal option is avail-
able that provides a fixed gain of 9dB, offering even more flexi-
bility.
The FMS6246 may be directly driven by a DC-coupled DAC out-
put or an AC-coupled signal. Internal diode clamps and bias cir-
cuitry may be used if AC-coupled inputs are required (see
applications section for details).
The outputs can drive AC or DC-coupled single (150鈩? video
loads. DC-coupling the outputs removes the need for output
coupling capacitors. The input DC levels will be offset approxi-
mately +280mV at the output.
Applications
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Cable and Satellite set top boxes
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DVD players
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HDTV
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Personal Video Recorders (PVR)
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Video On Demand (VOD)
Block Diagram
SD IN1
Transparent Clamp
6d
B
SD OUT1
SD IN2
Transparent Clamp
6d
B
SD OUT2
SD IN3
Transparent Clamp
6d
B
SD OUT3
8MHz, 6th order
SD/PS IN1
Transparent Clamp
6d
B
SD/PS OUT1
SD/PS IN2
Transparent Clamp
6d
B
SD/PS OUT2
SD/PS IN3
Transparent Clamp
6d
B
SD/PS OUT3
FcSEL SD / PS
Selectable
8/15 MHz
6th order
漏2004 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FMS6246 Rev. 1A
FMS6246相關(guān)型號PDF文件下載
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