4-channel, 2-MHz, class-D automotive audio amplifiers
Advanced solutions for a premium audio experience
HF(D)A class-D audio amplifiers provide a compact solution with in-play diagnostics
HF(D)A class-D audio amplifiers provide a compact solution with in-play diagnostics
Our HF(D)A class-D audio amplifiers offer compact, high-performance solutions for the most demanding automotive requirements. The new HFDA80D and HFDA90D extend our family, complementing the HFA80A. All the devices operate at 2 MHz and deliver four 27 W channels in a tiny 7x7 mm LQFP48 package. Digital inputs in the HFDA80D/90D simplify design and boost performances. Featuring full diagnostics and EMC mitigation, they're perfect for head units, smart cockpits, and infotainment systems.
What makes our amplifiers stand out?
- 2-MHz PWM switching: efficient power conversion, compact design
- Low total harmonic distortion: with a THD of 0.015% at 1 W and 1 kHz on 4 Ω loads for clear audio with minimal distortion
- Low output noise: 27 μV ensures clean, high-fidelity sound
- High efficiency performance: higher than 90%, driving 4x4 Ω at battery level
- Free-running diagnostics: continuous monitoring without disruption
- Digital admittance meter: real-time load condition monitoring
- Load current monitor: optional feature for precise load control
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HFDA and FDA series
Unlock the full potential of your vehicle's audio system with our innovative 2-MHz class-D amplifiers, designed for superior performance and efficiency.