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Engineering the Future of Compact Audio: A Deep Dive into the NAU82110YG Filter-Free Class-D Amplifier
- The NAU82110YG is a mono, analog-input, high-efficiency Class-D audio amplifier designed for modern consumer and IoT electronics, offering 18W output, filter-free topology, and low-noise performance.
- Class-D amplifiers operate power MOSFETs in saturation or cutoff, resulting in up to a 66% efficiency improvement over Class-AB designs, with typical system efficiencies exceeding 90% under moderate-to-high load conditions.
- The NAU82110YG provides efficient power delivery, up to 18W output into 4 Ω at 12V, up to 10W output into 8 Ω, and low quiescent current, making it suitable for battery-powered applications.
- The amplifier implements a filterless Class-D output using a spread-spectrum oscillator and slew-rate control to achieve compliant EMI performance without external filters.
- Featuring high SNR and PSRR, the NAU82110YG ensures clean audio output in noisy environments and is ideal for wireless audio products and devices powered by noisy supplies.
- With dual-mode input architecture and programmable gain control, the amplifier offers flexibility to support various product configurations and user interface styles.
- The NAU82110YG includes a range of protections such as overcurrent, overvoltage, undervoltage lockout, overtemperature, and anti-clipping protection to ensure system reliability and longevity.
- Key specifications of the NAU82110YG include 18W output power, <6 mA quiescent current, 103 dB SNR, >83 dB PSRR, and flexible gain control options.
- Optimized for applications like Bluetooth speakers, wireless doorbells, outdoor surveillance, and handheld game consoles, the NAU82110YG offers an efficient, reliable, and filter-free audio amplification solution.
- The NAU82110YG is a platform-level audio amplifier that addresses EMI compliance, board space constraints, and dynamic audio control, providing a foundation for designing connected devices of the future.
- For more information, datasheets, and reference designs, visit: https://www.nuvoton.com/products/smart-home-audio/audio-amplifiers/class-d-series/nau82110yg/
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