Datasheet > FMS6690_06

FMS6690_06

更新时间： 2024-11-23 04:18:47

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器
页数	文件大小	规格书
12页	317K
描述
Six Channel, 6th Order SD/PS/HD Video Filter Driver

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数据手册

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FMS6690_06 数据手册

January 2006

FMS6690

Six Channel, 6th Order SD/PS/HD Video Filter Driver

Features

Description

■ Three selectable sixth-order 15/32MHz (PS/HD) ﬁlters

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

■ Transparent input clamping

The FMS6690 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), Progressive Scan (PS),

and High Deﬁnition (HD) ﬁlters greatly simplify DVD video output

circuitry. Three channels offer ﬁxed SD ﬁlters and feature an

additional muxed input, while the other three channels are

selectable between PS and HD ﬁlters. The FMS6690 offers a

ﬁxed gain of 6dB.

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

■ AC or DC-coupled inputs

■ AC or DC-coupled outputs

■ DC-coupled outputs eliminate AC-coupling capacitors

■ Low power

■ 5V only

The FMS6690 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).

■ Lead (Pb) free packages - TSSOP-20

Applications

■ Cable and satellite set-top boxes

■ DVD players

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.

■ HDTV

■ Personal Video Recorders (PVR)

■ Video On Demand (VOD)

Block Diagram

Transparent Clamp

6dB

SD IN1

SD IN2

SD OUT1

Transparent Clamp

6dB

SD OUT2

SD IN3A

6dB

SD OUT3

SD IN3B

8MHz, 6 order

MUX

SEL

A/B

Transparent Clamp

6dB

PS/HD IN1

PS/HD IN2

PS/HD IN3

PS/HD OUT1

6dB

PS/HD OUT2

Transparent Clamp

6dB

PS/HD OUT3

Selectable

15/32MHz

6th order

PS/HD

cSEL

FMS6690 Rev. 2B

www.fairchildsemi.com

12 3 4 5 6 7...12

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