NAU83120YG is a mono high-efficiency filter-free Class-D audio amplifier, which is capable of driving a 4Ω load with up to 41W output power at 18V supply. This device provides I²C control and I²S audio input with low standby current and fast start-up time.

NAU83120YG is ideal for industrial and consumer applications, as it has advanced features like 85 dB PSRR, greater than 94% efficiency, ultra-low quiescent current, and superior EMI performance.

NAU83120YG is specified for operation from -40℃ ~ +85℃ and is available in the QFN-32 package.

Target Applications:

• Robotics
• Consumer Audio Systems
• Subwoofer
• Industrial Alarm

Key Features:

• Audio Input
  • Digital Audio Interface: I²S / PCM Input
  • Sampling Rates: 32 ~ 96 kHz
  • 85 dB PSRR
  • 94% Power Efficiency
• Audio Output
  • Powerful Mono Class-D Amplifier
  • 1 channel of 41 W (4Ω @ 18V, 10% THD+N)
  • 1 channel of 34.5 W (4Ω @ 18V, 1% THD+N)
  • 1 channel of 21.5 W (8Ω @ 18V, 10% THD+N)
  • 1 channel of 18.9 W (8Ω @ 18V, 1% THD+N)
  • Low Output Noise: 35 μV_RMS
• Advance Feature
  • Support Load Diagnostic Function (LDF)
    • Outputs Shorted Detection
    • Outputs Open Detection
    • Output to VSS Short Detection
    • Output to VDDSPK Short Detection
  • Device Protection
    • Over Current Protection (OCP)
    • Over Voltage Protection (OVP)
    • Under Voltage Lock Out (UVLO)
    • Over Temperature Protection (OTP)
    • Clock Termination Protection (CTP)
• Control Feature
  • I²C Control Interface
  • Gain Setting: 24 dB ~ 5.25 dB (plus mute)
  • Low Current Shutdown and Standby Modes
  • Click-and-Pop Suppression
• Operating Characteristics
  • Voltage range: 4.5V ~ 19V
  • Temperature range: -40°C ~ +85°C
  • Low Quiescent Current:
         • 1 channel of 8 mA @ 18V
• Package
  • QFN-32 (5x5mm)