LM4938
www.ti.com SNAS245B – FEBRUARY 2005 – REVISED MAY 2013 LM4938 Boomer™ Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers
with DC Volume Control and Selectable Gain
Check for Samples: LM4938 FEATURES DESCRIPTION The LM4938 is a monolithic integrated circuit that
provides DC volume control, and stereo bridged
audio power amplifiers capable of producing 2W into
4Ω with less than 1.0% THD or 2.2W into 3Ω with
less than 1.0% THD. 1 23 Improved Click and Pop Circuitry Virtually
Eliminates Noise During Turn On/Off
Transitions
DC Volume Control Interface
System Beep Detect
Stereo Switchable Bridged/Single-Ended
Power Amplifiers
Selectable Internal/External Gain and Bass
Boost
Thermal Shutdown Protection Circuitry
Unity Gain Stable APPLICATIONS Flat Panel Displays
Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs KEY SPECIFICATIONS PO at 1% THD+N
– into 3Ω: 2.2W (typ)
– into 4О©: 2.0W (typ) …
