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LM4924

Texas Instruments
Part Number LM4924
Manufacturer Texas Instruments
Description Stereo Headphone Audio Amplifier
Published May 19, 2023
Detailed Description LM4924 www.ti.com SNAS272B – OCTOBER 2004 – REVISED APRIL 2013 LM4924 Boomer™ Audio Power Amplifier Series 2 Cell Bat...
Datasheet PDF File LM4924 PDF File

LM4924
LM4924

Overview
LM4924 www.
ti.
com SNAS272B – OCTOBER 2004 – REVISED APRIL 2013 LM4924 Boomer™ Audio Power Amplifier Series 2 Cell Battery, 40mW Per Channel Output Capacitor-Less (OCL) Stereo Headphone Audio Amplifier Check for Samples: LM4924 FEATURES 1 •23 2-Cell 1.
5V to 3.
6V Battery Operation • OCL Mode for Stereo Headphone Operation • Unity-Gain Stable • “Click and Pop” Suppression Circuitry for Shutdown On and Off Transients • Active Low Micropower Shutdown • Thermal Shutdown Protection Circuitry APPLICATIONS • Portable Two-Cell Audio Products • Portable Two-Cell Electronic Devices KEY SPECIFICATIONS • OCL Output Power – (RL = 16Ω, VDD = 3.
0V, THD+N = 1%), 40mW (Typ) • Micropower Shutdown Current, 0.
1µA (Typ) • Supply Voltage Operating Range, 1.
5V < VDD < 3.
6V • PSRR 100Hz, VDD = 3.
0V, AV = 2.
5, 66dB (Typ) DESCRIPTION The LM4924 is a Output Capacitor-Less (OCL) stereo headphone amplifier, which when connected to a 3.
0V supply, delivers 40mW per channel to a 16Ω load with less than 1% THD+N.
With the LM4924 packaged in the VSSOP and SON packages, the customer benefits include low profile and small size.
These packages minimizes PCB area and maximizes output power.
The LM4924 features circuitry that reduces output transients (“clicks” and “pops”) during device turn-on and turn-off, and Mute On and Off.
An externally controlled, low-power consumption, active-low shutdown mode is also included in the LM4924.
Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount packages.
Typical Application Figure 1.
Block Diagram 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Boomer is a trademark of Texas Instruments.
2 All other trademarks are the property of their respective owners.
3 PRODUCTION DATA information is curre...


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