Datasheet4U Logo Datasheet4U.com

LM4673 - Class D Audio Power Amplifier

Description

The LM4673 is a single supply, high efficiency, 2.65W, mono, Class D audio amplifier.

A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design.

Features

  • a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low (GND). The gain of the LM4673 is externally configurable which allows independent gain control from multiple sources by summing the signals. Output short circuit and thermal overload protection prevent the device from damage during fault conditions. Key Specifications j Efficiency at 3.6V, 400mW into 8Ω speaker 88% (typ) j Efficiency at 3.6V, 100mW into 8Ω speaker 80% (typ) j Efficiency at.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM4673 Class-D Audio Power Amplifier Texas Instruments
LM4673SDBD Class-D Audio Power Amplifier Texas Instruments
LM4673TMBD Class-D Audio Power Amplifier Texas Instruments
LM4670 Filterless High Efficiency 3W Switching Audio Amplifier Texas Instruments
LM4671 Filterless High Efficiency 2.5W Switching Audio Amplifier Texas Instruments

Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LM4670 Filterless High Efficiency 3W Switching Audio Amplifier
LM4671 Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4674 Filterless 2.5W Stereo Class D Audio Power Amplifier
LM4675 Class D Audio Power Amplifier
LM4610 Dual DC Operated Tone/Volume/Balance

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com LM4673 Filterless, 2.65W, Mono, Class D Audio Power Amplifier December 2005 LM4673 Filterless, 2.65W, Mono, Class D Audio Power Amplifier General Description The LM4673 is a single supply, high efficiency, 2.65W, mono, Class D audio amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design. The LM4673 is designed to meet the demands of mobile phones and other portable communication devices. Operating on a single 5V supply, it is capable of driving a 4Ω speaker load at a continuous average output of 2.1W with less than 1% THD+N. Its flexible power supply requirements allow operation from 2.4V to 5.5V.
Published: |