LM1877 Audio Amplifier Circuit

lm1877LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 Ω loads. The LM1877 is designed to operate with a low number of external components, and still provide flexibility for use in stereo phonographs, tape recorders and AM-FM stereo receivers, etc.

Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10.

LM1877 stereo amplifier circuit diagram

lm1877 stereo amp

LM1877 Non-Inverting amplifier using split supply

lm1877 non inverting amp

LM1877 applications

  • Multi-channel audio systems
  • Stereo phonographs
  • Tape recorders and players
  • AM-FM radio receivers
  • Servo amplifiers
  • Intercom systems
  • Automotive products

LM 1877 features

  • 2W/channel
  • −65 dB ripple rejection, output referred
  • −65 dB channel separation, output referred
  • Wide supply range, 6V–24V
  • Very low cross-over distortion
  • Low audio band noise
  • AC short circuit protected
  • Internal thermal shutdown

LM1877 connection diagram and pdf datasheet

lm1877 pins

Download LM1877 pdf datasheet

No Comments

Join the conversation!

Error! Please fill all fields.
Looking for the latest from TI?