Maxim Integrated Products is offering a stereo audio codec that includes a feature to prevent speaker damage.

The MAX98089’s DAC-to-headphone idle power consumption is only 5.6mW.

The chip features an audio capability which is designed to optimise the signal level and frequency response, while limiting the maximum distortion and power at the output.

Called FlexSound, the on-chip audio technology comes with a toolkit for improving loudspeaker playback performance and voice transmission.

There is a graphical user interface to evaluate and then optimize the MAX98089’s 5-band parametric EQ, automatic level control (ALC), speaker excursion limiter, speaker power limiter, and speaker distortion (THD) limiter.

Example software drivers are available for Linux and other OS platforms. 

The device integrates a Class H stereo headphone amplifier with a dual-mode charge pump.

Ground sense reduces the output noise caused by ground-return current. Low-EMI, stereo, Class D speaker amplifiers provide filterless operation in the amplification of two speakers.

www.maxim-ic.com