AK4436VN

ADCs/DACs - Special Purpose Overview

The AK4436VN is a 6-channel, 32-bit audio digital-to-analog converter (DAC) from Asahi Kasei Microdevices. It supports PCM input sampling rates up to 768 kHz and features an OSR-Doubler technology for low out-of-band noise and power efficiency. The device includes five selectable digital filters with short group delay options. Key electrical specifications include a dynamic range and signal-to-noise ratio of 108 dB at 48 kHz, THD+N of 91 dB, and channel-independent digital volume control ranging from 0 dB to -127 dB in 0.5 dB steps. It operates on a 3.0 V to 3.6 V analog supply (AVDD) and a 1.7 V to 3.6 V digital supply (TVDD), housed in a 32-pin QFN package.

ADCs/DACs - Special Purpose Feature Summary

• 6-channel 32-bit DAC architecture supporting sampling frequencies up to 768 kHz
• Integrated LDO for digital power supply and support for I2C or 3-wire serial control interfaces
• Five types of digital filters including sharp roll-off and slow roll-off variants with adjustable group delay
• Channel-independent digital volume control with soft mute and de-emphasis filter capabilities

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure that the analog supply voltage (AVDD) and digital supply voltage (TVDD) requirements are met within the specified ranges of 3.0-3.6 V and 1.7-3.6 V respectively during system design.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-resolution audio playback with multiple output channels. Consider the available digital filter characteristics, such as group delay and roll-off steepness, to match the acoustic requirements. Verify interface compatibility with the host processor, as the device supports both I2C and 3-wire serial modes via configurable pins.

ADCs/DACs - Special Purpose Part Context

The AK4436VN belongs to the AK443x series of audio DACs by Asahi Kasei Microdevices. It is part of the Gen3 DAC lineup designed for high-quality audio systems. Related models in the series include the AK4438VN, which offers 8 channels, and the AK4432, which provides 2 channels, sharing similar core technologies like the OSR-Doubler.

ADCs/DACs - Special Purpose Replacement Considerations

For direct pin-compatible replacements within the same family, consider the AK4438VN for expanded channel count or the AK4432 for reduced channel requirements. Verify that the substitute part maintains the required 32-bit resolution and 768 kHz sampling rate support if those parameters are critical to the application.