Video & Audio

 

Nye klasse-D audioforstærkere til konsumerprodukter

Texas Instruments er klar med tre nye klasse-D audioforstærkere, der bl.a. retter sig mod 'smarte' højttalere og soundbars (in english).

Texas Instruments (TI) hhas introduced three new digital-input Class-D audio amplifiers that enable engineers to deliver high-resolution audio in more smart-home and voice-enabled applications.

By combining first-of-its-kind integration, real-time protection and new modulation schemes, TI’s new audio devices allow designers to reduce board space and overall bill of material (BOM) cost. These new amplifiers are designed for personal electronics applications with any power level, including smart speakers, sound bars, TVs, notebooks, projectors and Internet-of-Things (IoT) applications. 


TAS2770 15-W audio amplifier

As the first wide-supply I/V sense amplifier, the TAS2770 offers state-of-the art, real-time speaker protection when paired with TI Smart Amp algorithms. The amplifier monitors loudspeaker behavior and increases loudness while improving audio quality in applications requiring small speakers — all without changing industrial design.

The TAS2770 is the industry’s first audio front end (AFE) that combines a digital microphone input with a powerful I/V sense amplifier. The device captures voice and ambient acoustic information for echo cancellation or noise reduction in voice-enabled applications.

The TAS2770 monitors battery voltage and automatically decreases gain when audio signals exceed a set threshold, helping designers avoid clipping and extend playback time through end-of-charge battery conditions without degrading sound quality.

Deliver 192-kHz audio with the TAS5825M audio amplifier

Designers can achieve high-resolution audio with minimal engineering effort due to the device’s 192-kHz input sampling frequency and flexible, integrated processing flows. Additionally, the TAS5825M provides bass enhancement and thermal protection for the speaker.

The TAS5825M’s dedicated serial audio interface data output provides ambient sound information to the applications processor.

Engineers can reduce idle-power losses and thermal dissipation without degrading sound quality with the TAS5825M’s proprietary hybrid-mode modulation scheme.

Increase sound quality and system reliability with the TAS3251 audio amplifier

The TAS3251 is the first integrated digital input solution to support the highest output power and performance at 2x175 W, all in one single package.

Enable up to 96-kHz flexible processing and self-protection features including cycle-by-cycle current limit and DC speaker protection with the TAS3251.
6/6 2018
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