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參數(shù)資料
| 型號(hào)： | FMS6346MTC20X |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Six Channel, 6th Order SD/HD Video Filter Driver |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | ROHS COMPLIANT, MO-153AC, TSSOP-20 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 92K |
| 代理商： | FMS6346MTC20X |
2004 Fairchild Semiconductor Corporation
FMS6346 Rev. 1A
1
www.fairchildsemi.com
July 2005
F
FMS6346
Six Channel, 6
th
Order SD/HD Video Filter Driver
Features
■
Three selectable sixth-order 8/32MHz (SD/HD) filters
■
Three fixed sixth-order 8MHz (SD) filters
■
Transparent input clamping
■
Single video load drive (2Vpp, 150
, A
V
= 6dB)
■
AC or DC-coupled inputs
■
AC or DC-coupled outputs
■
DC-coupled outputs eliminate AC-coupling capacitors
■
Low Power
■
5V only
■
Robust (12kV HBM) output ESD protection
■
Lead (Pb) Free packages - TSSOP-20
Applications
■
Cable and Satellite set top boxes
■
DVD players
■
HDTV
■
Personal Video Recorders (PVR)
■
Video On Demand (VOD)
Description
The FMS6346 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 High Definition (HD)
filters greatly simplify DVD video output circuitry. Three chan-
nels offer fixed SD filters while the other three are selectable
between SD and HD filters.
The FMS6346 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 FMS6346 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
) 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.
Block Diagram
SD IN1
Selectable
8/32MHz
6th 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
8MHz, 6th order
FcSEL SD / HD
SD IN2
SD IN3
SD OUT1
SD OUT2
SD OUT3
SD/HD IN1
SD/HD IN2
SD/HD IN3
SD/HD OUT
SD/HD OUT
SD/HD OUT
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