Abstract: This audio bridge-tied load (BTL) amplifier application note describes a unique architecture that minimizes the differential output distortion and noise (THD+N). Maxim > Design Support > App Notes > Amplifier and Comparator Circuits > APP 1122 Maxim > Design Support > App Notes > Audio Circuits > APP 1122 Keywords: audio bridged amplifier, BTL, audio amplifier, THD+N, bridged tied load, low noise, differential output drive Jun 24, 2002 APPLICATION NOTE 1122 Optimizing Audio Bridged Tied Load Amplifiers Abstract: This audio bridge-tied load (BTL) amplifier application note describes a unique architecture that minimizes the differential output distortion and noise (THD+N). Low-voltage systems driving loudspeakers often employ a bridged-amplifier configuration that effectively doubles the voltage swing at the transducer (s……