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LM4952 データシート(PDF) 1 Page - Texas Instruments |
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LM4952 データシート(HTML) 1 Page - Texas Instruments |
1 / 25 page LM4952 www.ti.com SNAS230A – AUGUST 2004 – REVISED MAY 2013 LM4952 Boomer™ Audio Power Amplifier Series 3.1W Stereo-SE Audio Power Amplifier with DC Volume Control Check for Samples: LM4952 1 FEATURES DESCRIPTION The LM4952 is a dual audio power amplifier primarily 23 • Pop & Click Circuitry Eliminates Noise During designed for demanding applications in flat panel Turn-on and Turn-off Transitions monitors and TV's. It is capable of delivering 3.1 • Low Current, Active-low Shutdown Mode watts per channel to a 4 Ω single-ended load with less • Low Quiescent Current than 1% THD+N when powered by a 12VDC power supply. • Stereo 3.8W Output, RL = 4Ω Eliminating external feedback resistors, an internal, • DC-controlled Volume Control DC-controlled, volume control allows easy and • Short Circuit Protection variable gain adjustment. APPLICATIONS Boomer audio power amplifiers were designed specifically to provide high quality output power with a • Flat Panel Monitors minimal amount of external components. The • Flat Panel TV's LM4952 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for • Computer Sound Cards display applications requiring high power and minimal size. KEY SPECIFICATIONS The LM4952 features a low-power consumption • Quiscent Power Supply Current 18mA (typ) active-low shutdown mode. Additionally, the LM4952 • POUT @ features an internal thermal shutdown protection VDD = 12V, RL = 4Ω, 10% THD+N 3.8W (typ) mechanism along with short circuit protection. • Shutdown current 55 μA (typ) The LM4952 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. 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 Incorporated. 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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同様の説明 - LM4952 |
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