AK5359VT

Analog To Digital Converters (ADC) Overview

The AK5359VT is a stereo analog-to-digital converter (ADC) manufactured by Asahi Kasei Microdevices. It features a 24-bit resolution and supports sampling rates from 8kHz to 216kHz, utilizing Enhanced dual bit delta-sigma techniques for high accuracy. The device operates with separate analog (4.5V–5.5V) and digital (3.0V–5.5V) power supplies and includes single-ended inputs without requiring external components. It offers selectable MSB justified or I2S audio interfaces and functions in both master and slave modes within an operating temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 24-bit resolution with sampling rates ranging from 8kHz to 216kHz
• Single-ended analog inputs eliminating the need for external components
• Selectable audio interface formats: MSB justified or I2S
• Integrated linear phase digital anti-alias filtering and digital HPF for DC-offset cancellation

Analog To Digital Converters (ADC) Applications

• Digital Television (DTV) systems
• Digital Video Recorders (DVR)
• AV Receivers

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors due to potential availability variations. Confirm package integrity upon receipt, as the device is moisture-sensitive (MSL Level 2). Ensure supply chain documentation matches the specific VT suffix for the -40°C to 85°C temperature grade. Check for recent Product Change Notifications (PCN) regarding packaging or sourcing updates before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select the AK5359VT when single-ended input compatibility is required, distinguishing it from pin-compatible variants like the AK5357/58 which may differ in input configuration. Ensure the system clock supports the required master clock frequencies (256fs/384fs/512fs/768fs) based on the target sampling rate. Verify that the 4.5V–5.5V analog supply voltage aligns with the design constraints, as this variant does not support lower analog voltages.

Analog To Digital Converters (ADC) Part Context

The AK5359VT belongs to the AK535x series of audio ADCs from Asahi Kasei Microdevices. It is designed for consumer and professional audio applications, offering a balance of high performance and cost efficiency. The VT suffix specifically denotes the extended industrial temperature range (-40°C to 85°C) compared to the ET variant (-20°C to 85°C). It shares pin compatibility with other members of the AK535x family, facilitating design flexibility.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the AK5357 and AK5358, though input configurations may vary. For higher performance requirements, consider the AK5552VN or AK5720VT, noting differences in resolution, interface, and package type.