Tuesday, November 24, 2009

The real voice filter



Low cost more useful power amplifier using LM386

The LM386 is a power amplifier designed for use in low voltage consumer applications.


Features
Battery operation
Minimum external parts
Wide supply voltage range: 4V-12V or 5V-18V
Low quiescent current drain: 4mA
Voltage gains from 20 to 200
Ground referenced input
Self-centering output quiescent voltage
Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8Ohm, PO = 125mW, f = 1kHz)
Available in 8 pin MSOP package