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LM4898 Datasheet

Part Number LM4898
Manufacturers National Semiconductor
Logo National Semiconductor
Description 1Watt Fully Differential Audio Power Amplifier
Datasheet LM4898 DatasheetLM4898 Datasheet (PDF)

LM4898 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select July 2003 LM4898 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select General Description The LM4898 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.

  LM4898   LM4898






Part Number LM4898
Manufacturers Texas Instruments
Logo Texas Instruments
Description 1 Watt Fully Differential Audio Power Amplifier
Datasheet LM4898 DatasheetLM4898 Datasheet (PDF)

LM4898, LM4898MMBD www.ti.com SNAS216E – MAY 2003 – REVISED APRIL 2013 LM4898 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select Check for Samples: LM4898, LM4898MMBD FEATURES 1 •2 Fully Differential Amplification • Available in Space-Saving Packages DSBGA, VSSOP, and WSON • Ultra Low Current Shutdown Mode • Can Drive Capacitive Loads up to 500pF • Improved Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions • 2.4 - 5.5V Operation • No Output .

  LM4898   LM4898







1Watt Fully Differential Audio Power Amplifier

LM4898 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select July 2003 LM4898 1 Watt Fully Differential Audio Power Amplifier With Shutdown Select General Description The LM4898 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4898 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. The LM4898 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown select pin to be driven in a likewise manner to enable Shutdown. Additionally, the LM4898 features an internal thermal shutdown protection mechanism. The LM4898 contains advanced pop & click circuitry which virtually eliminates noises which would otherwise occur during turn-on and turn-off transitions. Key Specifications j Improved PSRR at 217Hz j Power Output at 5.0V & 1% THD j Power Output at 3.3V & .


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