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Ceramic Speaker Driver



  • Pop & click circuitry eliminates noise during turn-on and turn-off transitions
  • Low current shutdown mode
  • Low quiescent current
  • Mono 15Vp-p BTL output, RL = 2µF+30Ω, f = 1kHz
  • Thermal shutdown protection
  • Unity-gain stable
  • External gain configuration capability
  • Including Band exchange SW
  • Including Leakage cut SW


  • Cellphone
  • PDA


Texas Instruments  LM4961LQBD

The LM4961 is an audio power amplifier primarily designed for driving Ceramic Speaker for applications in Cell Phone and PDA's. It integrates a boost converter, with variable output voltage, with an audio power amplifier.

It is capable of driving 15Vp-p in BTL mode to 2uF+ 30 ohms load, continuous average power, with less than 1% distortion (THD+N) from a 3.2VDC power supply.

This LM4961LQBD is an evaluation board designed to ease the evaluation and effort during the development of a circuit using the LM4961LQ. It is an easy to use stand-alone board that requires power and GND, an input signal and an output load.