AK5574EN

ADCs/DACs - Special Purpose Overview

The AK5574EN is a 32-bit, 768 kHz sampling, differential input A/D converter from the AK557x series. It integrates four channels with full differential inputs, achieving 121 dB dynamic range and 112 dB S/(N+D). The device supports PCM modes (24/32-bit MSB justified, I2S, TDM) and DSD modes (Native 64, 128, 256). Power supplies include 4.75-5.25 V for analog and 1.7-1.98 V or 3.0-3.6 V for digital. It features selectable digital filters, channel summation for improved dynamic range, and operates within -40°C to +105°C in a 48-pin QFN package.

ADCs/DACs - Special Purpose Feature Summary

• Four-channel differential input with 32-bit resolution and up to 768 kHz sampling rate
• Dynamic range of 121 dB (up to 127 dB in 4-to-1 summation mode)
• Supports PCM (I2S/TDM) and DSD output formats with selectable digital filters
• Integrated LDO and low power consumption (275 mW typical at 48 kHz)

ADCs/DACs - Special Purpose Applications

• Mixers
• Multi-channel recorders

ADCs/DACs - Special Purpose Procurement Notes

Verify the datasheet revision (015016764-E-03 2022/02) and pin configuration against the specific design requirements. Ensure that unused pins are handled according to the recommended external circuits to maintain performance and stability.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-resolution multi-channel audio conversion. Consider the available digital filter types and summation modes to meet specific dynamic range and latency requirements. Verify compatibility with the host DSP's audio interface format (TDM/I2S).

ADCs/DACs - Special Purpose Part Context

The AK5574EN belongs to the AK557x series of premium ADCs. It shares architectural similarities with other members like the AK5572 (2-channel) and AK5576 (6-channel), offering scalable channel counts while maintaining consistent performance metrics and interface options.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements within the same family include the AK5572EN (2-channel) and AK5576EN (6-channel), depending on channel count requirements. Other series members like AK5534EN or AK5554EN may offer similar performance but require verification of specific electrical characteristics and pinouts.