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LM4929 Fiches technique(PDF) 1 Page - Texas Instruments |
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LM4929 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 20 page LM4929 www.ti.com SNAS293B – DECEMBER 2004 – REVISED APRIL 2013 LM4929 Boomer™ Audio Power Amplifier Series Stereo 40mW Low Noise Headphone Amplifier with OCL Output Check for Samples: LM4929 1 FEATURES DESCRIPTION The LM4929 is an stereo audio power amplifier 23 • OCL outputs — No DC Blocking Capacitors capable of delivering 40mW per channel of • External Gain-Setting Capability continuous average power into a 16 Ω load or 25mW • Available in Space-Saving VSSOP Package per channel into a 32 Ω load at 1% THD+N from a 3V power supply. • Ultra Low Current Shutdown Mode • 2V - 5.5V Operation Boomer audio power amplifiers were designed specifically to provide high quality output power with a • Ultra Low Noise minimal amount of external components. Since the LM4929 does not require bootstrap capacitors or APPLICATIONS snubber networks, it is optimally suited for low-power • Portable CD players portable systems. The LM4929 is configured for OCL (Output Capacitor-Less) outputs, operating with no • PDAs DC blocking capacitors on the outputs. • Portable Electronics Devices The LM4929 features a low-power consumption shutdown mode with a faster turn on time. KEY SPECIFICATIONS Additionally, the LM4929 features an internal thermal • PSRR at 217Hz and 1kHz shutdown protection mechanism. • Output Power at 1kHz with VDD = 2.4V, The LM4929 is unity gain stable and may be 1% THD+N into a 16 Ω load, 65dB (Typ) configured with external gain-setting resistors. • Output Power at 1kHz with VDD = 3V, 1% THD+N into a 16 Ω load, 25 mW (Typ) • Shutdown current, 40 mW (Typ), 2.0µA (Max) • Output Voltage change on release from Shutdown VDD = 2.4V, RL = 16Ω, 1mV (Max) 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. 2 Boomer is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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