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LM4953 датащи(PDF) 1 Page - Texas Instruments |
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LM4953 датащи(HTML) 1 Page - Texas Instruments |
1 / 19 page LM4953, LM4953SDBD www.ti.com SNAS299E – SEPTEMBER 2005 – REVISED FEBRUARY 2006 LM4953 Boomer™ Audio Power Amplifier Series Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver Check for Samples: LM4953, LM4953SDBD 1 FEATURES DESCRIPTION The LM4953 is an audio power amplifier designed for 23 • Pop & Click Circuitry Eliminates Noise During driving Ceramic Speaker in portable applications. Turn-On and Turn-Off Transitions When powered by a 3.6V supply, it is capable of • Low, 1 μA (Max) Shutdown Current forcing 12.6Vpp across a 2 μF + 30Ω bridge-tied-load • Low, 7mA (Typ) Quiescent Current (BTL) with less than 1% THD+N. • 12.6Vpp Mono BTL Output, Load = 2 μF+ 30Ω Boomer audio power amplifiers were designed specifically to provide high quality output power with a • Thermal Shutdown minimal amount of external components. The • Unity-Gain Stable LM4953 does not require bootstrap capacitors, or • External Gain Configuration Capability snubber circuits. Therefore it is ideally suited for display applications requiring high power and minimal APPLICATIONS size. • Cellphone The LM4953 features a low-power consumption shutdown mode. Additionally, the LM4953 features an • PDA internal thermal shutdown protection mechanism. KEY SPECIFICATIONS The LM4953 contains advanced pop & click circuitry that eliminates noises which would otherwise occur • Quiescent Power Supply Current (Vdd = 3V), during turn-on and turn-off transitions. 7mA(Typ) The LM4953 is unity-gain stable and can be • BTL Voltage Swing configured by external gain-setting resistors. (2 μF+30Ω load, 1% THD+N, Vdd = 3.6V), 12.6Vpp (Typ) • Shutdown Current, 1µA (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 © 2005–2006, 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. |
Аналогичный номер детали - LM4953_14 |
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Аналогичное описание - LM4953_14 |
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