AK5358AET

ADCs/DACs - Special Purpose Overview

The AK5358AET is a stereo A/D converter from Asahi Kasei Microdevices, designed for consumer and professional audio systems. It utilizes Enhanced dual bit ΔΣ techniques to achieve high accuracy with no external analog components required due to single-ended inputs. The device supports sampling rates from 8kHz to 96kHz and offers a Signal-to-Noise Ratio (S/N) and Dynamic Range (DR) of 102dB. It features linear phase digital anti-alias filtering and a digital high-pass filter for DC-offset cancellation. The audio interface supports 24-bit MSB justified or I2S formats in master or slave modes. Power supplies are 4.5–5.5V for analog and 2.7–5.5V for digital, housed in a 16-pin TSSOP package.

ADCs/DACs - Special Purpose Feature Summary

• High-performance 24-bit stereo ADC with 102dB S/N and DR using Enhanced dual bit ΔΣ modulation.
• Single-ended analog inputs eliminate the need for external component matching.
• Integrated linear phase digital anti-alias filter and digital HPF for DC-offset cancellation.
• Flexible audio interface supporting 24-bit MSB justified and I2S formats with selectable Master/Slave modes.

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix ET corresponds to the operating temperature range of −20°C to +85°C. Confirm the package type is 16-pin TSSOP with a 0.65mm pitch. Ensure compatibility with existing system clock requirements (MCLK, LRCK, SCLK) before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select the AK5358AET when single-ended input simplicity and low cost are prioritized alongside high fidelity. Compare against pin-compatible alternatives like the AK5357 or AK5359 if different sampling rate ranges (e.g., down to 4kHz) or higher dynamic range specifications are required by the specific application design.

ADCs/DACs - Special Purpose Part Context

The AK5358AET is part of the AK5358A family, which includes evaluation boards such as the AKD5358A. It is pin-compatible with the AK5357, AK5359, and AK5381, allowing for potential design upgrades within the same footprint while maintaining software and hardware interface consistency.

ADCs/DACs - Special Purpose Replacement Considerations

The datasheet explicitly lists the AK5357, AK5359, and AK5381 as pin-compatible replacements. Engineers should verify specific parameter differences, such as sampling rate limits and dynamic range, when substituting these parts.