GaN Audio Class D Evaluation Boards

GaN E-HEMT fast switching, low Coss, and zero QRR enables a new level of performance for Class D Audio amplifiers. This GaN-based EVB platform provides an excellent reference design for implementing a high performance, low cost audio system. The Class D amplifier and companion power supply designs are optimized for sound quality, thermal performance, size, and cost. Includes:

  • 2-channel Class D Amplifier
    • 200W per Channel into 8 Ohm
    • 300W per Channel into 4 Ohm
    • < 0.01% THD+N (8Ω, 1W, 20Hz to 20kHz)
    • 20Hz‐20kHz +/‐0.5dB Freq. Response (8 Ohm)
    • Bridge-Tied-Load (BTL) design
  • Companion Switch Mode Power Supply
    • Complete Stand‐alone Dual‐Rail LLC SMPS
    • 400W Continuous Duty, 550W Peak Power
    • GaN PFC and Half‐Bridge LLC Topology
    • Fully‐Regulated, Split‐Rail Outputs
    • No heatsinking, no cooling
    • EMI/EMC friendly

Additional Resources

More on Class D Audio from GaN Systems

Ask an Expert

Design support is available from Richardson RFPD engineers.