Four-Channel Digital Input Class-D Amplifier for Automotive Applications

In this training, you can better understand the decomposition method of the TAS6424 - Q1 block diagram, such as the function of each block and the interaction between blocks. Look at this video and learn about the main functions of separating the TAS6424-Q1 from other automotive class D audio amplifiers.

The global audio D - class amp market is projected to grow at an average annual growth rate of 13.8% from 2016 to 2022. In various applications, the car audio system division occupied the largest share of the global audio class D amplifier market in 2015. Advances in audio Class D amplifier technology and the growing demand for portable music equipment are expected to drive class D amplifiers during demand forecasting. With advances in electromagnetic interference (EMI) technology mobile phone applications for audio Class D amplifiers are expected to experience considerable growth during the forecast period. Many mobile phone manufacturers such as Nokia (current Microsoft) and LG offer Class D audio amplifiers to smartphones. As a headphone driver for smartphones, Class D audio amplifiers are also spreading.

ARC is a fully integrated amplifier system. The latest Class D amplifier technology provides amplification. It uses digital input design: USB audio 0 and Bluetooth aptX audio. USB audio connection provides professional quality audio quality sound with 24 bit resolution and sample rate up to 192 kHz. Bluetooth connection provides "CD quality" connection via aptX. Optional ARC application for free for optimal sound control. "The majority of the music we are listening today is digital, it is displayed on a cell phone, laptop, or the web, but lacking credibility lacks passion for music.ARC is high We are aiming to bridge the gap between the quality audio system and the world of digital music, "explains Robert Valtierra, inventor of the ARC amplifier.

In order to demonstrate the advantages of eGaN FET in Class D applications, we have constructed and tested a Class D amplifier demonstration system with bridge load (BTL) output. Each channel is designed for 150 W to 8 Ohm or 250 W to 4 Ohm output with less than 0.1% THD and is powered by a nominal ± 27 V power supply.