Smart amplifier allows for richer and louder audio for next-gen smartphones
Texas Instruments has just introduced a low-power smart amplifier that allows designers to develop next-generation smartphones with fantastic audio quality at peak volumes while maximizing battery efficiency.
The TAS2555 Class-H audio amplifier with integrated speaker protection uses back electromotive force and low power of 5.7 W to produce bigger sound from small devices. TI is the first in the industry to provide both integrated and nonintegrated smart amplifiers, giving engineers a broad range of design options.
The TAS2555 is the first low-power amplifier supported by the PurePath Console 3 software suite, which gives both advanced and beginner designers a path to meet diverse system requirements. The solution takes the guesswork out of speaker characterization and includes easy-to-use tools for tuning and integration into end products, thus accelerating time to market for smartphones, tablets and other audio-enabled portable electronics.
Key features and benefits of the TAS2555 smart amplifier
- Louder and clearer audio: Offers 5.7-W output power into 4 Ω and 3.8 W into 8 Ω at 4.2 V.
- Low idle-channel noise (ICN) simplifies designs: 15.9-µV ICN eliminates audible speaker noise when using the smartphone in a receiver or pause mode and also eliminates the need for external components.
- Integrated multilevel Class-H boost converter and automatic gain control: Dynamically adjusting audio output during periods of low battery voltage maximizes battery life. User-specified boost control helps customize boost on/off based on end-equipment power profile requirements.
- Reduces development time: Use any processor with an I2S output to enable on-chip speaker protection. This greatly reduces porting and integration time, enabling end equipment manufacturers to get to market faster.
TI offers a variety of design tools for the TAS2555 smart amplifier in order to speed time to market and simplify evaluation. Along with the PurePath Console 3 software suite, the company offers a comprehensive evaluation module (EVM) and a learning board tool for speaker evaluation. Support for designers is available via the Audio Amplifiers forum in the TI E2E Community, where engineers can browse for solutions and collaborate with other engineers.
Pricing and availability
The TAS2555 smart amplifier is available in a 3.47-mm-by-3.23-mm, 42-ball wafer-level chip-scale package (WCSP) and is priced at US$2.50 in 1,000-unit quantities.
Comments are closed, but trackbacks and pingbacks are open.