NAU83G60YG is a stereo 2x 30W smart amplifier with integrated low latency Advanced Audio DSP running the KCS (Klippel Controlled Sound) nonlinear adaptive speaker control algorithm. KCS provides highly accurate mechanical and thermal speaker protection while the nonlinear control system reduces harmonic and intermodulation distortion generated by speaker nonlinearities. Thanks to active DC compensation, the voice coil can be operated at its ideal rest position for maximum bass output. NAU83G60YG voltage and current sensing enable continuous identification of speaker parameters. Hence, parameter variations caused by aging, production variances, or climate changes can be compensated.

While conventional linear speaker protection algorithms cripple where it matters the most – at high amplitudes – this is where NAU83G60YG with KCS truly shines. Its unique feature-set allows operating speakers safely at their physical limits. This enables increased loudness and deeper bass with higher sound quality for consistent best-in-class performance.

Target Applications:

• Conference speakerphone / AEC
• Automotive Road Noise Active Noise Control / RANC
• TV/ Sound bar
• Notebooks/ PC/ All-in-One PC
• Wireless/ Smart/ Active Speakers
  
  

Key Features:

High-Quality Audio

• 2 x 15-band PEQs
• Crossover and Audio Mixer for Ultrasonic Bypass Mode
• Up/ Down Sampling Converter
• Low latency audio path (0.7msec ~ 2msec by different configuration)
  
  

Audio Data/Control/Clock Interface

• High Speed I²C mode (up to 1 Mbps)
• I²S/PCM/TDM (up to 8 channels & 192 KHz Sampling)
  
  

Battery Limiter Control

• Automatic Level Control (ALC) and Under Voltage Lockout Prevention (UVLOP)
  
  

Powerful Stereo Class-D Amplifier

• Stereo 30W Output Power at 4Ω load, < 10% THD+N, 24V
• Mono 30W Output Power in PBTL mode at 2Ω load, < 10% THD+N, 24V
• Speaker Power Supply Voltage VBAT: 8V ~ 24V
  
  

Klippel Controlled Sound (KCS) Algorithm

• Overload Protection (Mechanical and Thermal)
• Linearization (Stabilization and Speaker Distortion Compensation)
• Adaptive speaker alignment
• Output Power and Voltage Limiter
• Optimal Voice Coil Rest Position
• Real-time Speaker Diagnostic Data
• Low latency operation for active noise control
• Linearized echo cancellation reference signal
  
  

KCS Benefits for active sound applications

• Active noise control: Maximum bass from small speakers, constant speaker response, distortion compensation, very low latency 
• Active echo cancellation: Improved performance for speakerphone operation, wake-word detection due to distortion compensation

Evaluation Board ： NT-NAU83G60

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Nuvoton Technology Corporation 2025 New Product Launch – NAU83G60YG Smart Amplifier