Datasheet > FMS6246-9

FMS6246-9

更新时间： 2022-11-24 21:17:35

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器
页数	文件大小	规格书
10页	93K
描述
Six Channel, 6th Order SD/PS Video Filter Driver

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数据手册

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FMS6246-9 数据手册

July 2005

FMS6246

Six Channel, 6^thOrder SD/PS Video Filter Driver

Features

Description

■ Three selectable sixth-order 8/15MHz (SD/PS) filters

■ Three fixed sixth-order 8MHz (SD) filters

■ Transparent input clamping

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.

■ Single video load drive (2Vpp, 150Ω, A_V= 6dB)

■ AC or DC-coupled inputs

■ AC or DC-coupled outputs

■ DC-coupled outputs eliminate AC-coupling capacitors

■ Low Power

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.

■ 5V only

■ Robust (12kV HBM) output ESD protection

■ Lead (Pb) Free packages- TSSOP-20

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).

Applications

■ Cable and Satellite set top boxes

The outputs can drive AC or DC-coupled single (150Ω) 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.

■ DVD players

■ HDTV

■ Personal Video Recorders (PVR)

■ Video On Demand (VOD)

Block Diagram

Transparent Clamp

6dB

SD IN1

SD IN2

SD IN3

SD OUT1

Transparent Clamp

6dB

SD OUT2

6dB

SD OUT3

8MHz, 6 order

Transparent Clamp

6dB

SD/PS IN1

SD/PS IN2

SD/PS OUT1

6dB

SD/PS OUT2

6dB

SD/PS IN3

SD/PS OUT3

Selectable

8/15 MHz

SD / PS

cSEL

order

www.fairchildsemi.com

FMS6246 Rev. 1A

12 3 4 5 6 7...10

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