Texas Instruments has introduced an IC that simplifies the design and programming of spatially enhanced audio systems for multi-speaker portable products, including laptops, tablets, sound bars and sound docking stations.
The National LM48901 quad Class D spatial array is claimed to be the first in a family of audio ICs that employ distributed sound processing coupled with loudspeaker array technology to produce good audio experience for space-constrained applications.
This IC and companion software tool with easy-to-use audio effect programming converts a small soundstage into an immersive sound.
The IC integrates a spatial processing DSP, four Class D amplifiers, 18bit stereo ADC, PLL, I2S and I2C interfaces. The software tool speeds development by eliminating the need for algorithm tuning and in-house DSP experts. It enables differentiated products that defy physical system size to provide an expanded soundstage, claims the company.
The speaker drivers deliver 2W per channel of continuous output power into a 4Ω load with less than 1% total harmonic distortion plus noise to simplify system design and reduce bill of materials. It also has an android drivers with an application note, and an evaluation board with graphical user interface.
The IC is available in two package types: 36pin and 32pin of 3.2x3.4 and 5x5mm, respectively.
