LM4811 Datasheet | Texas Instruments

FEATURES - 2 Digital Volume Control Range from +12d B to - 33d B - WSON and VSSOP Surface Mount Packaging - "Click and Pop" Suppression Circuitry - No Bootstrap Capacitors Required - Low Shutdown Current APPLICATIONS - Cellular Phones - MP3, CD, DVD Players - PDA's - Portable Electronics KEY SPECIFICATIONS - THD+N at 1k Hz, 105m W Continuous Average Output Power into 16Ω 0.1 % (typ) - THD+N at 1k Hz, 70m W Continuous Average Power into 32Ω 0.1 % (typ) - Shutdown Current 0.3 μA (typ) DESCRIPTION The LM4811 is a dual audio power amplifier capable of delivering 105m W per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external ponents. Since the LM4811 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4811 features a digital volume control that sets the amplifier's gain from +12d B to - 33d B in 16 discrete steps using a two- wire interface. The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism. Connection Diagrams Top View Top View Figure 1. VSSOP Package See Package Number DGS0010A Figure 2. WSON Package See Package Number NGY0010A 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. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000- 2013, Texas Instruments Incorporated SNAS11...