DatasheetsPDF.com

LM48820

Texas Instruments
Part Number LM48820
Manufacturer Texas Instruments
Description 95mW Stereo Headphone Amplifier
Published Sep 9, 2020
Detailed Description LM48820 www.ti.com SNAS370B – MAY 2007 – REVISED MAY 2013 LM48820 Ground-Referenced, Ultra Low Noise, Fixed Gain, 95...
Datasheet PDF File LM48820 PDF File

LM48820
LM48820

Overview
LM48820 www.
ti.
com SNAS370B – MAY 2007 – REVISED MAY 2013 LM48820 Ground-Referenced, Ultra Low Noise, Fixed Gain, 95mW Stereo Headphone Amplifier Check for Samples: LM48820 FEATURES 1 •2 Available in Space Saving 0.
4mm Pitch DSBGA Package • Fixed Logic Levels • Ground Referenced Outputs • High PSRR • Ultra Low Current Shutdown Mode • Improved Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors, or GainSetting Resistors Required • Shutdown Either Channel Independently • Soft Start Feature Reduces Start up Transient Current APPLICATIONS • Mobile Phones • MP3 Players • PDAs • Portable electronic devices • Notebook PCs KEY SPECIFICATIONS • Improved PSRR at 217Hz: 80dB (typ) • Power Output at VDD = 3V, RL = 16Ω, THD+N = 1%: 95mW (typ) • Shutdown Current: 0.
05μA (typ) • Internal Fixed Gain: 1.
5V/V (typ) • Wide Operating Voltage Range: 1.
6V to 4.
5V DESCRIPTION The LM48820 is a ground referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16Ω single-ended load, with less than 1% THD+N from a 3V power supply.
The LM48820 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage.
This allows the outputs to be biased about ground, thereby eliminating outputcoupling capacitors typically used with normal singleended loads.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components.
The LM48820 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other portable applications.
The LM48820 features a low-power consumption shutdown mode selectable for each channel and a soft start function that reduces start-up current transients.
Additionally, the LM48820 features an internal thermal shutdown protection mechanism.
The LM48820 contains ...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)