LM4865 Datasheet | Texas Instruments

.ti. SNAS035G - DECEMBER 1999 - REVISED MAY 2013 750 m W Audio Power Amplifier with DC Volume Control and Headphone Switch Check for Samples: LM4865 Features - 2 DC Voltage Volume Control - Headphone Amplifier Mode - “Click and Pop” Suppression - Shutdown Control When Volume Control Pin Is Low - Thermal Shutdown Protection APPLICATIONS - GSM Phones and Accessories, DECT, Office Phones - Hand Held Radio - Other Portable Audio Devices KEY SPECIFICATION - PO at 1.0% THD+N Into 8Ω SOIC, Micro SMD 750 m W (typ) - PO at 10% THD+N Into 8Ω SOIC, Micro SMD 1W (typ) - Shutdown Current 0.7µA(typ) - Supply Voltage Range 2.7V to 5.5 V DESCRIPTION The LM4865 is a mono bridged audio power amplifier with DC voltage volume control. The LM4865 is capable of delivering 750m W of continuous average power into an 8Ω load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is acplished using the headphone sense pin. To conserve power in portable applications, the LM4865's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300m V is applied to the DC Vol/SD pin. Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external ponents and operate on low supply voltages. CONNECTION DIAGRAMS Figure 1. Micro SMD Package (Top View) Figure 2. Small Outline Package (SOIC) (Top View) Mini Small Outline Package (VSSOP) See Package Number D, DGK 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....