The two new digital-input audio power amplifiers provide the company’s new 3D and bass boost technology that improves the overall sound experience by widening the sound stage and enhancing bass response. The TAS5710 features company’s closed-loop architecture that generates a rich, natural sound and lowers system cost by relaxing power the supply performance needs in consumer audio products, incorporating high-definition televisions (HDTVs), media docking stations, digital radios and the sound bars.

‘PURE has consistently provided low power, integrated digital audio products that deliver great sound. TI’s closed loop amplifier with advanced on-chip audio processing enables us to offer high quality audio within our latest Clearsound platform,’ stated Colin Crawford, director of marketing for DAB digital radio manufacturer PURE.

Key features and benefits of the TAS5709 and TAS5710:

20-W stereo output power into 8 ohms at 18 V offers ample power at high efficiencies from a common supply rail. Closed-loop architectures increase design flexibility and sound quality;

Up to nine biquad filters per channel equalizes the speaker performance and compensates for below ideal enclosure acoustics;

Dual-band DRC with the selectable threshold, attack and decay protects speakers from damage and stops bass rattling of the cabinet/enclosure;

Royalty-free 3D and bass boost support widens the sound stage and enhances bass response;

Store up to three sets of biquad coefficients for optimum audio performance over varying audio input frequencies. Sample rate changes are automatically detected and correct coefficients selected without user intervention;

2-channel I2S input offers a direct connection to digital processor, which decreases bill of materials cost.

Availability and pricing:

The TAS5709 and TAS5710 are available along with the TAS5707 and TAS5708 digital-input audio power amplifiers which support multiple levels of audio processing.