–70 –80 0 20 100 1k 10k 30k 7 0 FREQUENCY (Hz) 0 Figure12.PSRRvs.Frequency Rev. F | Page 7 of 13 SSM2166 Data Sheet THEORY OF OPERATION Figure 15 illustrates a typical transfer characteristic for the APPLICATIONS INFORMATION SSM2166 where the output level in decibels is plotted as a The SSM2166 is a
microphone signal leav- are then input to a high level class II mixer, 1 U2, an Analog Devices SSM 2166 chip. ingtheSSM2166variablecompressor/noise which in this case is made from individual This professional grade audio conditioner gatingdeviceisinputtoahighlevelmixervia components (unlike all other