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LM4906 Datasheet Bypass-capacitor-less Audio Amplifier

Manufacturer: Texas Instruments

Overview: LM4906, LM4906LDBD, LM4906MMBD www.ti.com SNAS191E – APRIL 2003 – REVISED MAY 2013 LM4906 1W, Bypass-Capacitor-less Audio Amplifier with Internal Selectable Gain Check for Samples: LM4906, LM4906LDBD,.

General Description

The LM4906 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

It is capable of delivering 1W of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a +5V power supply.

The LM4906 is the first Texas Instruments Boomer Power Amplifier that does not require an external PSRR bypass capacitor.

Key Features

  • 1.
  • 2 Selectable Gain of 6dB (2V/V) or 12dB (4V/V).
  • No Output or PSRR Bypass Capacitors Required.
  • Improved “Click and Pop” Suppression Circuitry.
  • Very Fast Turn on Time: 5ms (Typ).
  • Minimum External Components.
  • 2.6 - 5.5V Operation.
  • BTL Output Can Drive Capacitive Loads.
  • Ultra Low Current Shutdown Mode (SD Low).

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