Class D/G audioforstærker med ultralav støj og effektforbrug

Maxim præsenterer MAX98396, der er en Class D/G audioforstærker med en lavt støjniveau og et effektforbrug i hviletilstand, der er en faktor fem mindre end sammenlignelige forstærkere, fremhæver firmaet (in english).

Maxim Integrated Products has unveiled the MAX98396 Class D/G speaker amplifier with the industry’s lowest noise and lowest quiescent power consumption, which is nearly five times lower power than similar amplifiers, according to the company.

The 20V digital input audio power amplifier offers 12.7mW of quiescent power to meet and exceed the industry’s power compliance regulations, which support the always-on feature in portable Bluetooth and smart speakers. The MAX98396’s low 15.5uVrms noise floor is 50-percent lower than the closest competitor, allowing speaker placement in near-silent locations.

The MAX98396 is the newest addition to Maxim Integrated’s portfolio of Class D/G amplifiers, offering the industry’s lowest power, lowest noise and highest thermal efficiency demanded by battery powered Bluetooth and always-on smart speakers. The industry-leading power efficiency allows the speaker to be driven higher and longer before reaching the thermal limit.

As well, the MAX98396 is ultrasound ready with 45kHz of bandwidth and a dedicated data path. This feature, combined with artificial intelligence (AI) software and ultrasound, enables touchless gesture sensing, presence detection and proximity sensing.

- As consumers embrace voice assistance in everyday life, speakers are proliferating throughout the connected home and new use cases are driving the demand for higher audio performance and artificial intelligence-enabled smart speakers, explains Peter Cooney, SAR Insight & Consulting.
- And as these modern devices continue to shrink in size, thermal management is becoming even more critical.

- The MAX98396 Class D/G amplifier was designed to meet the needs of next-generation smart and wireless speakers, adds Kevin Ko, business manager of Mobile Audio Solutions at Maxim Integrated.

- The high-resolution audio-compatible speaker amplifier features ultra-low noise performance, making it well-suited for placement bed side. Upgraded, ultrasound-ready features enable the newest trend of contactless smart speakers.

Watch a video at https://maxim.click/MAX98396Video

28/6 2021