Class-D Audio Amp Delivers High Power

Dec. 1, 2004
The CMOS LX1701 class-D audio amplifier can drive up to 3W of mono output into 2Ω speakers or 2W output into 4Ω speakers while providing full 20 Hz to 20 kHz high-fidelity audio. Total harmonic distortion (THD) is less than 1%. For many

The CMOS LX1701 class-D audio amplifier can drive up to 3W of mono output into 2Ω speakers or 2W output into 4Ω speakers while providing full 20 Hz to 20 kHz high-fidelity audio. Total harmonic distortion (THD) is less than 1%. For many applications, only one additional component will be needed, but no output filters or ac coupling capacitors are required. Quiescent current draw is 2 mA resulting from an output modulation design that enables operation without filters. The amplifier operates over a supply voltage range of 1.8V to 6.0V, covering most power supply or battery voltages. Low EMI performance allows it to reside on circuit boards close to interference-sensitive circuits such as audio and video receivers. Applications are in LCD TVs, desktop monitors, cell phones, PDAs and other portable electronics. The device is housed in a surface-mount 16-pin lead-free MLPQ package measuring 4 mm square and 1 mm high. Price is $0.88 each/10,000. MICROSEMI CORP., Irvine, CA. (949) 221-7101.

Company: MICROSEMI CORP.

Product URL: Click here for more information

About the Author

Staff

Articles, galleries, and recent work by members of Electronic Design's editorial staff.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!