PECL输入设备应用HSTL信号

摘要：本应用笔记讨论接口差分HSTL（高速收发器逻辑）输出到PECL（正射极耦合逻辑）输入条件。

Maxim>AppNotes>COMMUNICATIONSCIRCUITSKeywords:HSTL,PECL,highspeed,interfacestandards,differentialHSTL,highspeedtransceiverlogic,JedecSep27,2002standard,Jedecstd,differentialAPPLICATIONNOTE1752ApplyingHSTLSignalstoPECLInputDevicesAbstract:ThisapplicationnotediscussestheconditionsforinterfacingdifferentialHSTL(High-SpeedTransceiverLogic)outputstoPECL(PositiveEmitterCoupledLogic)inputs.PECLandHSTLaretwoofthehigh-speedinterfacestandardsincommonuse.PECL(positivesupplyreferredECL)isanolderstandardthanHSTLandwasdevelopedasahigherspeedalternativetotheTTLlogicstandards.HSTLwasdefinedasaninterfacestandardfordigitalintegratedcircuits.Thetwostandardsarenotdirectlycompatible.SomePE