The LM386M-1 and LM386MX-1 are power
amplifiers designed for use in low voltage consumer applications. The gain is
internally set to 20 to keep external part count low, but the addition of an
external resistor and capacitor between pins 1 and 8 increases the gain to any value
from 20 to 200.
The inputs are ground referenced while
the output automatically biases to one-half the supply voltage. The quiescent power
drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and
LM386MX-1 prefered for battery operation.
The LM386M-1 and LM386MX-1 are power
amplifiers designed for use in low voltage consumer applications. The gain is
internally set to 20 to keep external part count low, but the addition of an
external resistor and capacitor between pins 1 and 8 increases the gain to any value
from 20 to 200.
The inputs are ground referenced while
the output automatically biases to one-half the supply voltage. The quiescent power
drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and
LM386MX-1 prefered for battery operation.