AK5385BVF

Overview

The AK5385BVF is a high-performance audio analog-to-digital converter (ADC) belonging to the AK5385 series. This device offers exceptional audio quality and is widely used in various applications requiring precise analog-to-digital conversion.

Category

Audio Analog-to-Digital Converter

Use

The AK5385BVF is primarily used for converting analog audio signals into digital format. It finds extensive application in professional audio recording, broadcast equipment, musical instruments, and other audio processing systems.

Characteristics

• High-resolution: The AK5385BVF supports up to 24-bit resolution, ensuring accurate and detailed conversion of analog signals.
• Low distortion: With its low total harmonic distortion (THD) and noise floor, this ADC maintains the integrity of the audio signal during conversion.
• Wide dynamic range: The device offers a wide dynamic range, allowing it to capture both subtle nuances and loud audio signals with clarity.
• Low power consumption: The AK5385BVF operates efficiently, consuming minimal power while delivering high-quality audio conversion.

Package

The AK5385BVF is available in a compact surface-mount package, making it suitable for space-constrained applications. The package type is VFQFPN (Very Fine Quad Flat Package).

Essence

The essence of the AK5385BVF lies in its ability to accurately convert analog audio signals into digital form without compromising the audio quality. Its high-resolution, low distortion, and wide dynamic range contribute to its exceptional performance.

Packaging/Quantity

The AK5385BVF is typically supplied in tape and reel packaging. Each reel contains a specified quantity of devices, ensuring convenient handling and storage during production.

Specifications

• Resolution: Up to 24 bits
• Sampling Rate: 8 kHz to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >100 dB
• Dynamic Range: >110 dB
• Power Supply Voltage: 3.3 V
• Power Consumption: <50 mW

Detailed Pin Configuration

The AK5385BVF features a total of 32 pins, each serving a specific function. The pin configuration is as follows:

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

Functional Features

The AK5385BVF offers several functional features that enhance its performance and usability:

• Multi-bit Delta-Sigma architecture: This ADC utilizes a multi-bit Delta-Sigma modulation technique, ensuring high-resolution conversion with low noise and distortion.
• Oversampling: By employing oversampling techniques, the AK5385BVF achieves improved linearity and dynamic range.
• Digital audio interface: The device supports various digital audio interfaces, including I2S, left-justified, right-justified, and DSP formats, providing flexibility in system integration.

Advantages and Disadvantages

Advantages

• High-resolution audio conversion
• Low distortion and noise floor
• Wide dynamic range
• Low power consumption
• Compact package for space-constrained applications

Disadvantages

• Limited analog input voltage range
• Requires external components for optimal performance

Working Principles

The AK5385BVF operates based on the principle of Delta-Sigma modulation. It converts analog audio signals into a digital bitstream by oversampling the input signal and applying noise shaping techniques. The resulting digital output is then processed further to obtain the desired audio data.

Detailed Application Field Plans

The AK5385BVF finds extensive application in various audio-related fields, including:

1. Professional audio recording equipment: The high-resolution and low distortion characteristics make it ideal for capturing studio-quality audio.
2. Broadcast equipment: The device ensures accurate conversion of audio signals in broadcasting systems, maintaining the fidelity of the transmitted content.
3. Musical instruments: By integrating the AK5385BVF, musical instruments can achieve high-fidelity sound reproduction during recording or live performances.
4. Audio processing systems: The ADC is suitable for use in audio mixers, equalizers, effects processors, and other audio processing equipment.

Detailed and Complete Alternative Models

1. AK539