TheAD1958isacomplete,highperformance,single-chipstereodigitalaudioplaybacksystem.Itiscomprisedofamultibitsigma-deltamodulator,digitalinterpolationfiltersandanalogoutputdrivecircuitry,withanon-boarddualPLLclockgenerator.Otherfeaturesincludeanon-chipstereoattenuatorandmute,programmedthroughanSPI-compatibleserialcontrolport.TheAD1958isfullycompatiblewithallknownDVDformats,including96kHzand192kHzsamplefrequenciesand24-bits.Itisalsobackwardscompatiblebysupporting50/15µsdigitalde-emphasisfor"redbook"CompactDiscs,aswellasde-emphasisat32kHzand48kHzsamplerates.