fltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e.V., Berlin, gestattet.ICS 33.160.20!,vux“9838285www.din.deDDI
光接收机接口Tag内容描述:
1、fltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e.V., Berlin, gestattet.ICS 33.160.20!,vux“9838285www.din.deDDIN EN 62105Digitales Tonrundfunk-System Spezifikation fr die Empfnger-Datenschnittstelle (RDI)(IEC 62105:1999);Deutsche Fassung EN 62105:2002Digital audio broadcast system Specification of the receiver data interface (RDI) (IEC 62105:1999);German version EN 62105:2002Systme de radiodiffusion sonore numrique (DAB。
2、face between Dua】一mode Receiver ofWireless Synchronization and Base Station in CDMA Digital CellularMobile Communication Network2001-03-20发布2001一03一20实施中华人民共和国信息产业部发布YDII 1108-2001目次前言·。
3、cededonnes durcepteur(RDI) Digitalaudiobroadcastsystem Specificationofthereceiverdata interface(RDI) Numroderfrence Referencenumber CEI/IEC62105:1999Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnum。
4、roadcasting system Specification of the receiver data interface (RDI) The European Standard EN 62105:2002 has the status of a British Standard ICS 33.160.20 BS EN 62105:2002 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1998 BSI 4 October 2002 ISBN 0 580 29715 2 National for。
5、 status of a British Standard ICS 33.160.20 BS EN 50255:1998 nn( n-m U- NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGH LAW u - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-STD-BSI BS EN 50255-ENGL 1998 Lb24bb9 0723364 705 Amd. No. BS EN 60266:1998 Date Textaffected National foreword This British Standard is 。
6、roadcasting system Specification of the receiver data interface (RDI) The European Standard EN 62105:2002 has the status of a British Standard ICS 33.160.20 BS EN 62105:2002 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1998 BSI 4 October 2002 ISBN 0 580 29715 2 National for。
7、频带宽,使信号失真尽量小; (4)高可靠长寿命,尺寸与光纤直径相配,工作电压低等。
,2半导体的光电效应,半导体光检测器是利用半导体的光电效应制成。
,光生伏特效应-适当波长的光,照射非均匀半导体(如P-N结)即使没有外电场作用,也会因内建场的存在,使半导体中产生电动势(光生电压),这种内建场引起的光电转换过程称为光生伏特效应。
,条件,3PIN光电二极管,吸收区与作用区,从半导体表面到内部x方向上吸收入射光产生电子孔穴对,:吸收系数1/cm,作用区,耗尽层内 (每对光生载流子都可迅速漂移生成电流),两侧扩散长度内 (只有扩散到耗尽层边缘,才能漂移生成电流),-转换效率高、运动速度快,为了改善光电检测器的响应速度和转换效率,在P型材料和N型材料之间加一个I层(本征耗尽层),它是轻掺杂的N型材料,电子浓度很低,经扩散可以形成一个很宽的耗尽层。
这就是PIN光电二极管(PIN-PD),工作波长,PIN特点:光电转换效率较高(无光生电流放大作用),响应速度快。
,由于I层很厚具有较高电阻,电压基本上落在该区,使势垒区宽度增加,减小扩散运动影响,提高了响应速度。
,采用双异质结设计能显著提。