Nuvoton Technology Corporation of America
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NAU8401YG
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NAU8401YG

Overview

  • Category: Integrated Circuit
  • Use: Audio Amplifier
  • Characteristics: Low Power, High Performance
  • Package: 20-pin QFN
  • Essence: Single-ended Mono Class-D Audio Amplifier
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 2.7V to 5.5V
  • Output Power: Up to 3W
  • Efficiency: Up to 90%
  • THD+N: 0.03%
  • Shutdown Current: 0.1μA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. VDD: Power Supply
  2. GND: Ground
  3. SD: Shutdown Control
  4. INP: Positive Input
  5. INN: Negative Input
  6. BST: Bootstrap Capacitor Connection
  7. PVDD: Power Supply for Gate Driver
  8. PGND: Ground for Gate Driver
  9. OUT: Speaker Output
  10. FB: Feedback Input
  11. AGND: Analog Ground
  12. BYP: Bypass Capacitor Connection
  13. VREF: Reference Voltage Output
  14. VCM: Common Mode Voltage Output
  15. VDDC: Power Supply for Charge Pump
  16. PGNDC: Ground for Charge Pump
  17. CP: Charge Pump Capacitor Connection
  18. CPO: Charge Pump Output
  19. CPN: Charge Pump Output
  20. VDDP: Power Supply for Power Stage

Functional Features

  • Single-ended Mono Class-D architecture
  • Low power consumption
  • High efficiency
  • Low total harmonic distortion plus noise (THD+N)
  • Shutdown control for power saving
  • Built-in charge pump for bootstrap voltage generation
  • Internal protection against overcurrent and overtemperature

Advantages

  • High audio quality with low distortion
  • Efficient power utilization
  • Compact package size for space-constrained applications
  • Wide operating temperature range for versatile usage
  • Shutdown control for power-saving mode

Disadvantages

  • Limited output power compared to some other amplifiers
  • Requires external components for proper operation
  • Sensitive to electromagnetic interference (EMI)

Working Principles

The NAU8401YG is a single-ended mono Class-D audio amplifier. It utilizes pulse width modulation (PWM) to convert the input audio signal into a high-frequency square wave. This square wave is then filtered and amplified to drive the connected speaker. The charge pump generates the bootstrap voltage required for efficient operation. The shutdown control allows the amplifier to enter a low-power state when not in use.

Detailed Application Field Plans

The NAU8401YG is suitable for various audio amplification applications, including: - Portable devices such as smartphones, tablets, and portable media players - Bluetooth speakers and wireless headphones - Home audio systems and soundbars - Automotive infotainment systems - Industrial audio equipment

Detailed and Complete Alternative Models

  • TPA3116D2: 50W Stereo Class-D Audio Amplifier
  • MAX98357A: 3.7W Mono Class-D Audio Amplifier
  • TAS5720: 20W Stereo Class-D Audio Amplifier
  • PAM8403: 3W Stereo Class-D Audio Amplifier

In conclusion, the NAU8401YG is a low-power, high-performance audio amplifier integrated circuit. Its single-ended mono Class-D architecture, compact package, and wide operating temperature range make it suitable for various audio amplification applications. While it has limitations in terms of output power and sensitivity to EMI, its advantages include high audio quality, efficiency, and power-saving features.

Liste 10 perguntas e respostas comuns relacionadas à aplicação de NAU8401YG em soluções técnicas

  1. Question: What is the NAU8401YG?
    Answer: The NAU8401YG is a highly integrated, low-power, and high-performance audio codec designed for various technical solutions.

  2. Question: What are the key features of the NAU8401YG?
    Answer: The key features of the NAU8401YG include multiple analog and digital audio interfaces, programmable gain amplifiers, built-in ADCs and DACs, and advanced power management capabilities.

  3. Question: What technical solutions can benefit from using the NAU8401YG?
    Answer: The NAU8401YG can be used in applications such as smartphones, tablets, portable media players, gaming consoles, automotive infotainment systems, and smart home devices.

  4. Question: How does the NAU8401YG handle audio data?
    Answer: The NAU8401YG supports various audio formats, including PCM, I2S, TDM, and PDM, allowing for flexible handling of audio data.

  5. Question: Can the NAU8401YG support microphone input?
    Answer: Yes, the NAU8401YG has built-in microphone preamplifiers and supports both analog and digital microphone inputs.

  6. Question: Does the NAU8401YG have any built-in audio processing features?
    Answer: Yes, the NAU8401YG offers programmable DSP functions, such as equalization, filtering, and dynamic range compression, to enhance audio quality.

  7. Question: What power supply options are available for the NAU8401YG?
    Answer: The NAU8401YG can operate from a single power supply ranging from 1.8V to 3.6V, making it suitable for battery-powered applications.

  8. Question: Is the NAU8401YG compatible with other audio codecs or processors?
    Answer: Yes, the NAU8401YG is designed to be compatible with various audio codecs and processors, allowing for easy integration into existing systems.

  9. Question: Can the NAU8401YG support multiple audio channels?
    Answer: Yes, the NAU8401YG supports up to 8 audio channels, making it suitable for applications requiring multi-channel audio processing.

  10. Question: Are there any evaluation boards or development tools available for the NAU8401YG?
    Answer: Yes, Nuvoton provides evaluation boards, software development kits (SDKs), and technical documentation to facilitate the design and development process with the NAU8401YG.