TheADN2804providesthereceiverfunctionsofquantization,signalleveldetect,clockanddatarecovery,anddataretimingfor622MbpsNRZdata.TheADN2804automaticallylocksto622Mbpsdatawithouttheneedforanexternalreferenceclockorprogramming.Intheabsenceofinputdata,theoutputclockdriftsnomorethan±5%.AllSONETjitterrequirementsaremet,includingjittertransfer,jittergeneration,andjittertolerance.Allspecificationsarequotedfor−40°Cto+85°Cambienttemperature,unlessotherwisenoted.

Thisdevice,togetherwithaPINdiodeandaTIApreamplifier,canimplementahighlyintegrated,lowcost,lowpowerfiberopticreceiver.

Thereceiver’sfront-endloss-of-signal(LOS)detectorcircuitindicateswhentheinputsignallevelfallsbelowauser-adjustablethreshold.TheLOSdetectcircuithashysteresistopreventchatterattheoutput.

TheADN2804isavailableinacompact5mm×5mm,32-leadLFCSP.