LM4873
www.ti.com LM4873 SNAS033E – AUGUST 2000 – REVISED MAY 2013 Dual 2.1W Audio Amplifier Plus Stereo
Headphone Function
Check for Samples: LM4873 FEATURES DESCRIPTION The LM4873 is a dual bridge-connected audio power
amplifier which, when connected to a 5V supply, will
deliver 2.1W to a 4О© load or 2.4W to a 3О© load with
less than 1.0% THD+N (see Notes below). In
addition, the headphone input pin allows the
amplifiers to operate in single-ended mode when
driving stereo headphones. A MUX control pin allows
selection between the two stereo sets of amplifier
inputs. The MUX control can also be used to select
two different closed-loop responses. 1 2 Input Mux Control and Two Separate Inputs
Per Channel
Stereo Headphone Amplifier Mode
“Click and Pop” Suppression Circuitry
Thermal Shutdown Protection Circuitry
PCB Area-Saving DSBGA and Thin DSBGA
Packages
TSSOP and HTSSOP and WQFN Packages APPLICATIONS Multimedia Monitors
Portable and Desktop Computers
Portable Audio Systems KEY SPECIFICATIONS PO at 1% THD+N
– LM4873LQ, 3Ω, 4Ω Loads 2.4W (typ), 2.1 W …
