AKM Semiconductor Inc.
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AK4497EQ
Näytä Yksityiskohdat DataSheets

AK4497EQ

Overview

  • Category: Audio DAC (Digital-to-Analog Converter)
  • Use: High-quality audio playback in various devices
  • Characteristics:
    • High-resolution audio support
    • Low distortion and noise
    • Wide dynamic range
    • Advanced digital filtering
  • Package: QFP (Quad Flat Package)
  • Essence: Convert digital audio signals into analog for accurate playback
  • Packaging/Quantity: Available in reels of 250 units

Specifications

  • Resolution: Up to 32-bit
  • Sampling Rate: Up to 768 kHz
  • Total Harmonic Distortion + Noise (THD+N): <0.0005%
  • Signal-to-Noise Ratio (SNR): >120 dB
  • Dynamic Range (DR): >120 dB
  • Power Supply Voltage: 3.3 V
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AK4497EQ features a total of 48 pins, including:

  • Power supply pins (VDD, VDDL, VDDR)
  • Digital audio interface pins (SDTI, SDTO, BICK, LRCK)
  • Analog output pins (OUTL, OUTR)
  • Control pins (CSN, SCLK, SDIN)

For a detailed pin configuration diagram, please refer to the datasheet.

Functional Features

  • Dual mono architecture for improved channel separation
  • Velvet Sound technology for natural and smooth audio reproduction
  • Multiple digital filters for customizable sound characteristics
  • DSD (Direct Stream Digital) support for high-resolution audio formats
  • Built-in volume control for direct connection to amplifiers

Advantages and Disadvantages

Advantages: - Exceptional audio quality with low distortion and noise - Wide range of supported audio formats and resolutions - Flexible digital filter options for personalized sound - Dual mono design enhances channel separation

Disadvantages: - Relatively high power consumption compared to some alternatives - Requires careful PCB layout and power supply design for optimal performance

Working Principles

The AK4497EQ operates by receiving digital audio data through its digital audio interface pins. It then utilizes advanced digital-to-analog conversion techniques to convert the digital signals into analog form. The converted analog audio is then output through the analog output pins for further amplification and playback.

Detailed Application Field Plans

The AK4497EQ is widely used in various high-end audio devices, including:

  1. Digital music players
  2. Home theater systems
  3. Professional audio equipment
  4. High-fidelity headphones
  5. Car audio systems

Its exceptional audio quality and versatile features make it suitable for demanding applications where accurate and immersive audio reproduction is essential.

Detailed and Complete Alternative Models

  1. AK4499EQ: Flagship DAC with even higher specifications and enhanced features.
  2. AK4490EQ: High-performance DAC with similar characteristics but lower cost.
  3. AK4458EQ: Cost-effective DAC with good audio performance for budget-conscious designs.

These alternative models offer different trade-offs in terms of cost, performance, and features, allowing designers to choose the most suitable option for their specific requirements.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät AK4497EQ :n soveltamiseen teknisissä ratkaisuissa

  1. Question: What is the AK4497EQ?
    Answer: The AK4497EQ is a high-performance digital-to-analog converter (DAC) chip developed by Asahi Kasei Microdevices.

  2. Question: What are the key features of the AK4497EQ?
    Answer: The AK4497EQ offers exceptional audio performance with low distortion and noise, high dynamic range, and support for various audio formats.

  3. Question: What applications can benefit from using the AK4497EQ?
    Answer: The AK4497EQ is commonly used in high-end audio equipment such as digital music players, home theater systems, professional audio interfaces, and headphone amplifiers.

  4. Question: What is the resolution and sampling rate supported by the AK4497EQ?
    Answer: The AK4497EQ supports up to 32-bit resolution and sampling rates up to 768kHz, making it suitable for handling high-resolution audio files.

  5. Question: Does the AK4497EQ support DSD audio format?
    Answer: Yes, the AK4497EQ supports Direct Stream Digital (DSD) audio format, including DSD256 and DSD512.

  6. Question: Can the AK4497EQ be used in portable devices?
    Answer: While the AK4497EQ is primarily designed for stationary audio equipment, it can also be used in portable devices that require high-quality audio performance.

  7. Question: What is the power supply requirement for the AK4497EQ?
    Answer: The AK4497EQ requires a dual power supply of ±5V to ±18V, depending on the desired performance level.

  8. Question: Does the AK4497EQ have built-in digital filters?
    Answer: Yes, the AK4497EQ provides multiple selectable digital filters to tailor the sound output according to the user's preference.

  9. Question: Are there any evaluation boards or development kits available for the AK4497EQ?
    Answer: Yes, Asahi Kasei Microdevices offers evaluation boards and development kits to facilitate the integration of the AK4497EQ into various audio systems.

  10. Question: Can the AK4497EQ be used in multi-channel audio applications?
    Answer: Yes, the AK4497EQ can be configured in multi-channel setups by using multiple chips together, enabling high-quality audio reproduction in surround sound systems.