TDA7498是100W+100W双BTLD类音频放大器,主要用在家庭影院和有源扬声器.TDA7498单电源10-39V工作,效率高达90%,增益设定为25.6dB,31.6dB,35.1dB和37.6dB。采用PowerSSO-36TDA7498主要特性:100W+100WoutputpoweratTHD=10%withRL=6ohmandVCC=36VWiderangesinglesupplyoperation(10-39V)Highefficiency(=90%)Fourselectable,fixedgainsettingsofnominally25.6dB,31.6dB,35.1dBand37.6dBDifferentialinputsminimizecommon-modenoiseStandbyandmutefeaturesShort-circuitprotectionThermaloverloadprotectionExternallysynchronizableTDA7498应用原理图TDA74986欧姆扬声器应用电路图TDA74988欧姆扬声器应用电路图)