AK4499EQ

ADCs/DACs - Special Purpose Overview

The AK4499EQ is a 32-bit, 4-channel switched resistor Digital-to-Analog Converter (DAC) from Asahi Kasei Microdevices. It supports PCM inputs up to 768 kHz and DSD512 inputs. Key electrical specifications include a THD+N of -124 dB, a dynamic range of 140 dB in mono mode, and 128x oversampling. The device features six types of 32-bit digital filters and operates within a temperature range of -40°C to +85°C. It utilizes a 128-pin HTQFP package.

ADCs/DACs - Special Purpose Feature Summary

• 4-ch Switched Resistor DAC architecture with industry-leading low distortion (-124 dB THD+N).
• Supports high-resolution audio formats including 768kHz PCM and DSD512.
• Includes six selectable 32-bit digital filter modes for flexible sound reproduction.
• Features automatic PCM/DSD/EXDF mode switching and daisy chain capability.

ADCs/DACs - Special Purpose Applications

• High-end Network Audio systems
• USB-DAC playback devices
• Premium home theater receivers
• Professional audio interfaces

ADCs/DACs - Special Purpose Procurement Notes

Verify the component status as the source document identifies the AK4499 as preliminary. Confirm the specific ordering suffix 'EQ' matches the required packaging format against current distributor listings. Ensure compliance with export control regulations regarding the transfer of related technology.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring multi-channel output or high channel count stereo setups. Evaluate power supply requirements carefully, as the device supports both internal LDO operation and external supply configurations. Ensure the host system provides appropriate master clock frequencies across the supported sampling rate ranges.

ADCs/DACs - Special Purpose Part Context

The AK4499 represents a premium tier in AKM's audio converter lineup, utilizing advanced switched resistor technology. It is designed to compete in the high-fidelity market segment, offering performance metrics that support lossless audio playback standards. The device integrates complex digital filtering and modulation blocks on a single chip.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official AKM channels for cross-reference information or updated product lifecycle status.