=1kHz,RL=3Ω; 3.2 THD+N=10%, f=1kHz,RL=8Ω; 1.8 THD+N=1%, f=1kHz ,RL=4Ω; 2.3 THD+N=1%, f=1kHz ,RL=3Ω; 2.5 THD+N=1%, f=1kHz ,RL=8Ω; 1.3 VDD=5V Po=0.6W, RL=8Ω 0.1 VDD=5V Po=1.6W, RL=4Ω 0.15 .