The FDA803S and FDA903S are the newest single-channel fully differential 10W Class-D audio power amplifiers in the STMicroelectronics FDA (fully digital amplifier) family. They are designed for automotive applications like eCall, telematics, and wherever an audio channel needs to reproduce human voice, music, or warning messages at a standard output power level of up to 10W.
The amplifiers integrate an I2S front end, digital core, 24-bit digital-to-analog converter (DAC) with 100dB resolution, and class-D PWM output stage. The integrated digital audio processing ensures high sound quality within a compact circuit footprint. Feedback within the chip, before the external L-C output filter, simplifies the circuit design and saves space.
With full I2C configurability and in-play diagnostics that include clipping detection, thermal warning, overcurrent protection, and open-load detection, both amplifiers minimize external components and bill-of-materials costs. The FDA903S additionally integrates a real-time load-current monitor, allowing self-diagnostic capability compatible with the demands of functional-safety applications up to ASIL A.
Both devices come in QFN32 5mm x 5mm exposed pad-down packages that enable a compact and cost-effective, fully digital design without the need for a heatsink (more info).
When browsing our website, you can change your preferences and reject certain types of cookies that are to be stored on your computer. You may also delete all cookies that are already stored on your computer, but keep in mind that deleting cookies may prevent you from using parts of our website.
These cookies are necessary in order to provide you with the services available through our website and to enable you to use certain features of our website. Without these cookies, we cannot provide you with certain services on our website.
These cookies are used to collect information for traffic analysis on our website. For example, these cookies can track things like which sites visitors are interested in and how much time they spend, which helps us understand how we can improve our site for you. This does not identify any persons.
These cookies are used to serve ads that are likely to interest you based on your browsing habits. These cookies, as requested by us and / or the advertising providers, may combine information collected from our website with other information, independently collected from other websites, regarding the activities of your internet browser within their advertising network of websites. If you choose to delete or disable these targeting or advertising cookies, your ads will still show, but may no longer be personalized and relevant to you.