AKM Semiconductor Inc.
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AK4490EN
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AK4490EN

Product Overview

Category

AK4490EN belongs to the category of digital-to-analog converters (DACs).

Use

It is primarily used in audio systems to convert digital audio signals into analog signals for high-quality sound reproduction.

Characteristics

  • High-resolution audio support
  • Low distortion and noise levels
  • Wide dynamic range
  • High signal-to-noise ratio
  • Low power consumption

Package

AK4490EN is available in a small outline package (SOP) with a pin count of 28.

Essence

The essence of AK4490EN lies in its ability to accurately convert digital audio signals into high-fidelity analog signals, ensuring an immersive audio experience.

Packaging/Quantity

AK4490EN is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

  • Resolution: Up to 32-bit
  • Sampling Rate: Up to 768 kHz
  • Total Harmonic Distortion + Noise (THD+N): < -112 dB
  • Signal-to-Noise Ratio (SNR): > 120 dB
  • Power Supply Voltage: 3.3 V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. VDD
  2. GND
  3. DVDD
  4. AVDD
  5. AGND
  6. DGND
  7. I2C_SCL
  8. I2C_SDA
  9. RESETB
  10. MCLK
  11. BICK
  12. LRCK
  13. SDATA
  14. DSD_MODE
  15. DSD_DATA
  16. DSD_CLK
  17. FLT
  18. DIF0
  19. DIF1
  20. DIF2
  21. DIF3
  22. DIF4
  23. DIF5
  24. DIF6
  25. DIF7
  26. DIF8
  27. DIF9
  28. DIF10

Functional Features

  • High-resolution audio playback support
  • Low distortion and noise levels for accurate sound reproduction
  • Flexible digital input interface options
  • Built-in digital filters for customizable sound characteristics
  • Direct Stream Digital (DSD) support for native playback of high-resolution audio formats

Advantages and Disadvantages

Advantages

  • High-quality audio output
  • Wide range of supported audio formats
  • Low power consumption
  • Compact package size

Disadvantages

  • Limited availability in smaller quantities
  • Requires external components for complete audio system integration

Working Principles

AK4490EN operates by receiving digital audio data through its input pins, which is then processed using internal digital filters and converted into analog signals. These analog signals are then amplified and sent to the audio output.

Detailed Application Field Plans

AK4490EN finds applications in various audio systems, including: 1. High-end home audio systems 2. Professional studio equipment 3. Portable audio players 4. Car audio systems 5. Digital audio interfaces

Detailed and Complete Alternative Models

Some alternative models to AK4490EN include: - AK4493EQ - PCM1794A - ES9038PRO - CS4398

These models offer similar functionality and performance, providing options for different design requirements.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem AK4490EN w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of AK4490EN in technical solutions:

  1. Q: What is AK4490EN? A: AK4490EN is a high-performance digital-to-analog converter (DAC) chip developed by Asahi Kasei Microdevices.

  2. Q: What are the key features of AK4490EN? A: AK4490EN offers high-resolution audio playback, low distortion, low noise, and supports various digital audio formats.

  3. Q: What applications can AK4490EN be used for? A: AK4490EN is commonly used in audio equipment such as digital music players, home theater systems, soundbars, and professional audio devices.

  4. Q: What is the maximum sampling rate supported by AK4490EN? A: AK4490EN supports a maximum sampling rate of 768kHz for PCM audio and DSD256 for DSD audio.

  5. Q: Does AK4490EN support multiple digital audio inputs? A: Yes, AK4490EN supports various digital audio inputs including I2S, left-justified, right-justified, and TDM.

  6. Q: Can AK4490EN be used in balanced audio configurations? A: Yes, AK4490EN supports balanced output configurations, allowing for improved audio performance and noise rejection.

  7. Q: Does AK4490EN have built-in volume control? A: No, AK4490EN does not have built-in volume control. It is typically used in conjunction with an external volume control circuit.

  8. Q: What is the power supply voltage range for AK4490EN? A: The recommended power supply voltage range for AK4490EN is between 2.7V and 3.6V.

  9. Q: Can AK4490EN be used in battery-powered devices? A: Yes, AK4490EN's low power consumption makes it suitable for use in battery-powered audio devices.

  10. Q: Are evaluation boards or reference designs available for AK4490EN? A: Yes, Asahi Kasei Microdevices provides evaluation boards and reference designs to assist with the integration of AK4490EN into various applications.

Please note that these answers are general and may vary depending on specific implementation details and requirements.