AK5388EQ

Overview

The AK5388EQ is a high-performance audio analog-to-digital converter (ADC) that belongs to the AK5388 series. This series is designed and manufactured by Asahi Kasei Microdevices Corporation, a leading provider of electronic components.

Category

The AK5388EQ falls under the category of audio ADCs, which are essential components in various audio recording and processing systems.

Use

This ADC is primarily used for converting analog audio signals into digital format with exceptional accuracy and fidelity. It finds applications in professional audio recording equipment, sound reinforcement systems, digital mixing consoles, and other audio-related devices.

Characteristics

• High-resolution: The AK5388EQ supports up to 24-bit resolution, ensuring precise conversion of analog signals.
• Low distortion: With a total harmonic distortion plus noise (THD+N) rating of less than 0.001%, this ADC maintains excellent signal integrity.
• Wide dynamic range: The device offers a dynamic range of 120 dB, allowing it to capture both subtle nuances and loud audio signals accurately.
• Low latency: The AK5388EQ features low-latency conversion, making it suitable for real-time audio applications.
• Flexible interface: It supports various digital audio interfaces, including I2S, left-justified, right-justified, and TDM formats.

Package and Essence

The AK5388EQ is available in a compact 32-pin QFN package, which ensures ease of integration into different audio systems. Its essence lies in its ability to faithfully convert analog audio signals into high-quality digital data.

Packaging/Quantity

The AK5388EQ is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: 8 kHz to 216 kHz
• Dynamic Range: 120 dB
• THD+N: < 0.001%
• Power Supply: +5V
• Digital Interface: I2S, left-justified, right-justified, TDM

Detailed Pin Configuration

The AK5388EQ features a total of 32 pins, each serving a specific function. The detailed pin configuration is as follows:

1. VREFL-
2. VREFL+
3. AGND
4. AVDD
5. DVDD
6. DGND
7. MCLK
8. BICK
9. LRCK
10. SDATA
11. SDATAI
12. SDATAO
13. SCLK
14. RESET
15. PDN
16. DOUT
17. DIN
18. DLRCK
19. DBICK
20. VCOM
21. VCOM
22. VCOM
23. VCOM
24. VCOM
25. VCOM
26. VCOM
27. VCOM
28. VCOM
29. VCOM
30. VCOM
31. VCOM
32. VCOM

Functional Features

The AK5388EQ offers several functional features that contribute to its exceptional performance:

• Oversampling Delta-Sigma Modulator: This advanced modulator ensures accurate conversion by oversampling the input signal and employing a delta-sigma modulation technique.
• Digital Filter: The built-in digital filter removes unwanted noise and artifacts from the converted audio signal, enhancing the overall audio quality.
• Anti-Aliasing Filter: The ADC incorporates an anti-aliasing filter to prevent aliasing distortion during the analog-to-digital conversion process.

Advantages and Disadvantages

Advantages

• High-resolution and low-distortion conversion for precise audio reproduction.
• Wide dynamic range captures both subtle details and loud signals accurately.
• Low-latency conversion suitable for real-time audio applications.
• Flexible digital interface compatibility for seamless integration into various systems.

Disadvantages

• Requires an external power supply (+5V) for operation.
• Limited to a maximum sampling rate of 216 kHz.

Working Principles

The AK5388EQ operates based on the principle of delta-sigma modulation. It oversamples the analog audio signal, quantizes it using a high-resolution delta-sigma modulator, and then applies digital filtering to remove noise and artifacts. The resulting digital signal accurately represents the original analog audio input.

Detailed Application Field Plans

The AK5388EQ finds extensive application in the following areas:

1. Professional Audio Recording: Used in high-end audio interfaces, studio recording equipment, and audio production consoles.
2. Sound Reinforcement Systems: Integrated into live sound setups, concert venues, and public address systems for accurate audio capture.
3. Digital Mixing Consoles: Enables precise conversion of analog audio signals in digital mixing consoles for professional audio mixing.
4. Broadcast Equipment: Incorporated into broadcast studios and radio stations for high-quality audio processing and transmission.

Detailed and Complete Alternative Models