AK4499EXEQ

ADCs/DACs - Special Purpose Overview

The AK4499EXEQ is a premium multi-bit stereo digital-to-analog converter (DAC) utilizing Asahi Kasei Microdevices' Switched Resistor technology. It achieves a signal-to-noise ratio of 138 dB in mono mode and 135 dB in stereo mode, with a total harmonic distortion plus noise of -124 dB. The device accepts multi-bit modulator data via a dedicated audio interface clocked by 5.6448 MHz or 11.2896 MHz clocks. Power supplies include TVDD (1.7–3.6 V), DVDD (1.7–1.98 V), and AVDD/VDDL/R (4.75–5.25 V). It operates within a temperature range of -40°C to +85°C and is housed in a 64-pin HTQFP package.

ADCs/DACs - Special Purpose Feature Summary

• Stereo Switched Resistor DAC architecture for low distortion and noise
• High dynamic range: 138 dB (Mono Mode) / 135 dB (Stereo Mode)
• Multi-bit Modulator Data Interface supporting 7-bit data
• CMOS digital input level with 3-wire or I2C control modes

ADCs/DACs - Special Purpose Applications

• Network Audio systems
• USB DACs
• CD/SACD players
• AV Receivers
• Measurement Equipment

ADCs/DACs - Special Purpose Procurement Notes

Verify the component status and current availability directly with Asahi Kasei Microdevices sales offices or authorized distributors before design implementation. The datasheet indicates that product information may change without notice. Ensure compliance with applicable export control laws and regulations when procuring or exporting this component.

ADCs/DACs - Special Purpose Selection Notes

Select the AK4499EXEQ for high-resolution audio playback requiring low distortion characteristics. It requires specific power supply voltages: TVDD between 1.7V and 3.6V, DVDD between 1.7V and 1.98V, and AVDD/VDDL/R between 4.75V and 5.25V. The device supports CMOS digital inputs and utilizes a 64-pin HTQFP package suitable for surface-mount assembly.

ADCs/DACs - Special Purpose Part Context

The AK4499EXEQ belongs to the AK4499EX series of premium stereo DACs from Asahi Kasei Microdevices. It employs newly developed Switched Resistor technology designed to achieve industry-leading low distortion and low noise levels. This component is positioned for applications involving widespread high-resolution audio sources.

ADCs/DACs - Special Purpose Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Asahi Kasei Microdevices for alternative components if this part is discontinued or unavailable.

ADCs/DACs - Special Purpose FAQ

What is the maximum operating temperature for the AK4499EXEQ?

The operating temperature range for the AK4499EXEQ is -40°C to +85°C.

How is the control register accessed on the AK4499EXEQ?

Control registers can be accessed using either a 3-wire interface (CSN, CCLK, CDTI) or an I2C-Bus interface (SCL, SDA).

What type of digital input does the AK4499EXEQ support?

The AK4499EXEQ supports a Multi-bit Modulator Data Interface with CMOS digital input levels.