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LM4940 - 6W Stereo Audio Power Amplifier

General Description

The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TVs.

It is capable of delivering 6 watts per channel to a 4Ω load with less than 10% THD+N while operating on a 14.4VDC power supply.

Key Features

  • 1.
  • 23 Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions.
  • Low Current, Active-Low Shutdown Mode.
  • Low Quiescent Current.
  • Stereo 6W Output, RL = 4Ω.
  • Short Circuit Protection.
  • Unity-Gain Stable.
  • External Gain Configuration Capability.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM4940 www.ti.com SNAS219C – OCTOBER 2003 – REVISED MAY 2013 LM4940 6W Stereo Audio Power Amplifier Check for Samples: LM4940 FEATURES 1 •23 Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions • Low Current, Active-Low Shutdown Mode • Low Quiescent Current • Stereo 6W Output, RL = 4Ω • Short Circuit Protection • Unity-Gain Stable • External Gain Configuration Capability APPLICATIONS • Flat Panel Monitors • Flat Panel TVs • Computer Sound Cards KEY SPECIFICATIONS • Quiscent Power Supply Current: 40mA (max) (SE) • POUT VDD = 14.4V, RL = 4Ω, 10% THD+N: 6 W (typ) • Shutdown Current: 40µA (typ) DESCRIPTION The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TVs.