AK5578EN

ADCs/DACs - Special Purpose Overview

The AK5578EN is an 8-channel, 32-bit delta-sigma analog-to-digital converter (ADC) designed for high-performance digital audio systems. It supports sampling rates from 8 kHz to 768 kHz and achieves a dynamic range of 121 dB with 112 dB S/(N+D). The device features full differential inputs, selectable digital filters, and DSD output up to 11.2 MHz. Channel summation modes enhance dynamic range up to 130 dB. Power supplies include 4.75–5.25 V for analog sections and 1.7–3.6 V for digital interfaces. It operates within a temperature range of -40°C to +105°C in a 64-pin QFN package.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel differential input with 32-bit resolution and 768 kHz maximum sampling rate
• Dynamic range of 121 dB (up to 130 dB in 8-to-1 channel summation mode)
• Supports PCM formats (I2S, TDM, MSB justified) and DSD Native up to 256x
• Integrated selectable digital filters: Sharp Roll-off, Slow Roll-off, and Short Delay variants

ADCs/DACs - Special Purpose Applications

• Studio mixers handling high-resolution audio
• Multi-channel recording equipment
• Digital audio processors requiring TDM interface connectivity

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific revision code on the datasheet cover or ordering guide to ensure compatibility with current manufacturing standards. Confirm that the 64-pin QFN package outline matches the target PCB footprint dimensions exactly. Check moisture sensitivity level (MSL) requirements for reflow soldering profiles during assembly planning.

ADCs/DACs - Special Purpose Selection Notes

Select this component when eight simultaneous differential audio channels are required with high dynamic range. Ensure the system design accommodates separate analog (AVDD) and digital (TVDD/VDD18) power domains. Verify that the host DSP or processor supports the selected TDM or I2S frame format and clock frequencies up to 768 kHz.

ADCs/DACs - Special Purpose Part Context

The AK5578EN belongs to the AK557x series of premium audio ADCs from Asahi Kasei Microdevices. It shares architectural similarities with other members like the AK5572EN (2-channel) and AK5574EN (4-channel), offering scalable channel counts while maintaining consistent performance metrics such as 32-bit resolution and low power consumption characteristics across the family.

ADCs/DACs - Special Purpose Replacement Considerations

For direct pin-and-register compatible alternatives within the same manufacturer portfolio, refer to the AK5558VN. Ensure that any substitute part supports the required 8-channel configuration and 768 kHz sampling rate if those specifications are critical to the design.