低成本有源RF分路器ADA4304特性参数应用详解及样片申请-豆柴文库

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低成本有源RF分路器ADA4304特性参数应用详解及样片申请指南

ADA4304-2（样片申请信息查询：www.ictry.cn）是一款75Ω有源分路器，适合要求无损信号分离的应用。典型应用包括
多调谐器数字机顶盒、有线分路器模块、多调谐器/支持数字有线功能(DCR)的电视以及家庭网关。
FEATURESFUNCTIONALBLOCKDIAGRAM

5V5V
IdealforCATVandterrestrialapplications
Excellentfrequencyresponse
0.1µF0.1µF
1.6GHz,−3dBbandwidth
1µH

1dBflatnessto1.0GHz

Lownoisefigure:4.0dBVCCIL
Lowdistortion
Compositesecondorder(CSO):−62dBc
VOUT1
Compositetriplebeat(CTB):−72dBc
0.01µF
1dBcompressionpointof8.25dBmVINADA4304-2


2.8dBofgainperoutputchannel0.01µFVOUT2

25dBoutput-to-outputisolation,50MHzto1000MHz
0.01µF
75Ωinputandoutputs
IntegratedoutputresistorsGND


01

Smallpackagesize:16-lead,3mm×3mmLFCSP0
39-

5

6
0
Figure1.
APPLICATIONS
Set-topboxes
Residentialgateways
CATVdistributionsystems
Splittermodules
Digitalcableready(DCR)TVs



GENERALDESCRIPTION

4
TheADA4304-2isa75ΩactivesplitterforuseinapplicationsTA=–40°C
3
wherealosslesssignalsplitisrequired.Typicalapplications
includemultitunerdigitalset-topboxes,cablesplittermodules,2
TA=+85°C
1
multituner/digitalcableready(DCR)televisions,andhome
TA=+25°C
gatewayswheretraditionalsolutionsrequirediscretepassive0


)–1
B


splittermoduleswithseparatefixedgainamplifiers.d
(
–2
N
I
TheADA4304-2isfabricatedusingAnalogDevices,Inc.A

G–3

proprietarysilicon-germanium(SiGe),complementarybipolar–4

process,enablingittoachieveverylowlevelsofdistortionwith–5

anoisefigureof4dB.Thepartprovidesalowcostalternative–6

thatsimplifiesdesignsandimprovessystemperformanceby–7

integratingasignalsplitterelementandagainblockintoasingle–8
11

50100100040000
-

IC.TheADA4304-2isavailableina16-leadLFCSPandoperatesin9
3
FREQUENCY(MHz)
theextendedindustrialtemperaturerangeof−40°Cto+85°C.065
国内外65家IC厂商免费样片查询：ICTry样片申请网（www.ictry.cn）



TABLEOFCONTENTS
Features..............................................................................................1TypicalPerformanceCharacteristics..............................................6

Applications.........................................................