NAU83U25YG

NAU83U25YG is a highly efficient, filter-free, stereo Class-D audio amplifier, which is capable of driving a 4 Ω load with up to 3.0 W output power. This device provides I²C control and I²S audio input with low standby current and fast start-up time.

The NAU83U25YG is ideal for the automotive applications, as it has advanced features like AEC-Q100 grade 2, 80 dB PSRR, 90% efficiency, ultra-low quiescent current (i.e. 2.1 mA at 3.7V for 2 channels) and superior EMI performance.

Applications

• Dashboard
• VSP (Vehicle Sound for Pedestrians)
• AVAS (Acoustic Vehicle Alerting System)
• ADAS (Advanced Driver Assist System)
• eCall / T-box

Key Features

• Audio Input
  • Digital Audio Interface: I²S / PCM Input
  • Pin Selectable: I²S Left or Right Channel selection
  • Pin Selectable: PCM Time slot
  • Sampling Rates: 8 ~ 96 kHz
  • 80 dB PSRR @ 217 Hz
• Audio Output
  • Powerful Stereo Class-D Amplifier
  • 2 channels of 3.0 W (4Ω @ 5V, 10% THD+N)
  • 2 channels of 1.32 W (4Ω @ 3.7V, 1% THD+N)
  • 2 channels of 1.72 W (8Ω @ 5V, 10% THD+N)
  • 2 channels of 0.75 W (8Ω @ 3.7V, 1% THD+N)
  • LLow Output Noise: 18 μV_RMS @ 0 dB gain
• Advance/Control Feature
  • I²C Control Interface
  • Gain Setting: 24 dB ~ -62 dB (plus mute)
  • Low Current Shutdown and Standby Modes
  • Click-and Pop Suppression
• Operating Characteristics
  • Voltage range: 2.5V ~ 5.5V
  • Temperature range: -40°C ~ 105°C (AEC-Q100 Automotive Grade 2)
  • Low Quiescent Current:
• 2 channels of 2.1 mA @ 3.7V
• 2 channels of 3.2 mA @ 5V
• Package
  • QFN-20 (4 x 4 mm)

Technical Documents

• For more details, please visit Nuvoton Official Website: GO