mono Class-D audio

nuvoton nau8325yg



Manufacturer: nuvoton

Supplier: nuvoton


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Packaging: Cut Tape

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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)