AK4462VN

Overview

The AK4462VN is a 32-bit, 2-channel Premium DAC from Asahi Kasei Microdevices utilizing VELVET SOUND technology. It supports PCM inputs up to 768 kHz and DSD512/DoP256 formats. Key electrical specifications include a dynamic range of 117 dB, THD+N of -107 dB, and a differential voltage output of 5.6 Vpp. The device operates on analog supplies (AVDD) of 3.0–5.5 V and digital supplies (TVDD/VDD18) of 1.7–3.6 V. It features six selectable digital filters, automatic PCM/DSD switching, and an integrated LDO or external power configuration.

Feature Summary

• Supports 768 kHz PCM and DSD512/DoP256 input with automatic mode switching
• 117 dB Dynamic Range and -107 dB THD+N performance
• Six selectable digital filter options including Sharp Roll-off and Low Dispersion Short Delay
• Integrated LDO or external supply support for flexible power management

Applications

• AV Receivers
• CD/SACD Players
• Network Audio Systems
• USB DACs and USB Headphones
• Car Audio Systems

Procurement Notes

Verify the package type is 24-WFQFN Exposed Pad (4x4 mm) and confirm the supplier provides Tape & Reel packaging. Ensure the component meets the specified operating temperature range of -40°C to +105°C. Check for RoHS compliance documentation as required by your manufacturing standards.

Selection Notes

Select this DAC for high-resolution audio applications requiring low out-of-band noise and high dynamic range. Choose between internal LDO operation (LDOE pin High) for simplified design or external supply (LDOE pin Low) for specific voltage constraints. Ensure the host system supports the required I2C or 3-wire serial control interface for register configuration.

Part Context

The AK4462VN belongs to the Premium DAC series from Asahi Kasei Microdevices, designed for high-fidelity audio reproduction. It integrates VELVET SOUND technology and OSR-Doubler to achieve high performance with low power consumption. It serves as a direct replacement for previous generation premium DACs in multi-channel audio systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.