The Cirrus Logic CS35L41 smart power amplifier is designed to support the growing trend toward stereo audio in smartphones and portable devices. It delivers enriched audio clarity and loudness with advanced power management, all in a small package – nearly half the size of other leading DSP smart amps. By tackling the complex engineering challenges inherent in mobile stereo audio design, Cirrus Logic enables OEMs of smartphone and battery-powered portable devices to introduce a markedly improved audio listening experience for both mono and stereo applications, while conserving battery life.
The Cirrus Logic CS35L41 11-volt boosted Class D audio amplifier with DSP, complemented with Cirrus Logic’s SoundClear Playback software, improves audio quality and increases the loudness of smartphone speaker output while protecting the speaker using both hardware and software techniques. Its advanced battery management system and predictive algorithms adapt to changing audio, speaker and battery conditions to minimize power consumption and battery current, without sacrificing audio performance. This new smart power amplifier also uses 55 nm process technology, the most advanced for this class of amplifiers, resulting in a tiny, 5.64 mm2 space-saving WLCS package. This is important to OEMs who want to include a two-speaker design, as well as pack in as many new features and functions as possible.
The Cirrus Logic CS35L41 boosted amplifier delivers on the ‘big three’ requirements for mobile applications: enriched audio sound, efficient low-power management and a space-saving package. By incorporating features such as advanced battery management and predictive algorithms, the Cirrus Logic smart power amp increases the audio volume when in speakerphone mode, while reducing noise and power consumption, resulting in better battery life and improved talk times.
The Cirrus Logic CS35L41 11-volt smart boosted Class D audio amplifier with DSP delivers high-performance audio in a small, low-power package. Design features include:
The Cirrus Logic CS35L41 smart power amplifier is currently shipping in production volumes. The company also offers tuning tools that help enable not only top-tier smartphone and portable device OEMs to introduce higher quality mono and stereo audio, but mid- and lower cost designs as well.