Microcontrollers(510)

Smart Home Audio(284)

NAU8325YG

DS_NAU8325YG_BlockDiagram

NAU8325YG is a highly efficient, filter-free, stereo Class-D audio amplifier, which is capable of driving a 4Ω load with up to 3.0W output power. This device provides I2C control and I2S audio input with low standby current and fast start-up time.

The NAU8325YG is ideal for the portable applications of battery drive, as it has advanced features like 80dB PSRR, 90% efficiency, ultra-low quiescent current (i.e. 2.1mA at 3.7V for 2 channels) and superior EMI performance.

Target Applications:

Gaming Controllers
Wireless (VR) Headset
Notebooks / Tablet PCs
Personal Media Players

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: 8K ~ 96KHz
  - 80dB PSRR@217Hz 
   
Audio Output
  - Powerful Stereo Class-D Amplifier
  - 2 ch x 3.0W (4Ω @ 5V, 10% THD+N)
  - 2 ch x 1.32W (4Ω @ 3.7V, 1% THD+N)
  - 2 ch x 1.72W (8Ω @ 5V, 10% THD+N)
  - 2 ch x 0.75W (8Ω @ 3.7V, 1% THD+N)
  - Low Output Noise: 18 μVRMS @0dB gain
     
Advance/Control Feature
  - I2C Control Interface
  - Gain Setting: 24dB ~ -62dB (plus mute)
  - Low Current Shutdown and Standby Modes
  - Click-and Pop Suppression
     
Operating Characteristics
  - voltage range: 2.5 V to 5.5 V
  - Temperature range: -40°C to 85°C
  - Low Quiescent Current:
  • 2.1mA at 3.7V for 2 ch
  • 3.2mA at 5V for 2 ch
     
Package
  - QFN-20 (4x4mm)