TheSSM2167isacompleteandflexiblesolutionforconditioningmicrophoneinputsinpersonalelectronicsandcomputeraudiosystems.Itisalsoexcellentforimprovingvocalclarityincom-municationsandpublicaddresssystems.Alownoisevoltagecontrolledamplifier(VCA)providesagainthatisdynamicallyadjustedbyacontrollooptomaintainasetcompressioncharacteristic.Thecompressionratioissetbyasingleresistorandcanbevariedfrom1:1toover10:1relativetothefixedrotationpoint.Signalsabovetherotationpointarelimitedtopreventoverloadandtoeliminatepopping.Adownwardexpander(noisegate)preventsamplificationofbackgroundnoiseorhum.Thisresultsinoptimizedsignallevelspriortodigitization,therebyeliminatingtheneedforadditionalgainorattenuationinthedigitaldomain.Theflexibilityofsettingthecompressionratioandthetimeconstantoftheleveldetector,coupledwithtwovaluesofrotationpoint,maketheSSM2167easytointegrateinawidevarietyofmicrophoneconditioningapplications.
Thedeviceisavailableina10-leadMSOPpackage,andisguaranteedforoperationovertheextendedindustrialtemperaturerangeof−40°Cto+85°C.
