AK5388AEQ

ADCs/DACs - Special Purpose Overview

The AK5388AEQ is a 24-bit, 216kHz sampling 4-channel analog-to-digital converter (ADC) designed for high-end audio systems. It utilizes Asahi Kasei’s Enhanced Dual Bit architecture to achieve a dynamic range of 120dB and an S/N+D ratio of 110dB. The device features a modified FIR digital filter with short group delay (12.6/fs) and excellent linear phase response. Power supply requirements are 4.75V to 5.25V for analog circuits and 3.0V to 3.6V for digital logic. It supports I2S or TDM output formats and includes a cascade TDM interface for multi-chip expansion.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 216kHz maximum sampling rate using Enhanced Dual Bit modulator architecture
• High performance metrics: 120dB dynamic range and 110dB S/N+D; extends to 123dB in mono mode
• Short delay digital filter with 12.6/fs group delay, 0.01dB passband ripple, and 80dB stopband attenuation
• Flexible digital interface supporting I2S, TDM, and cascade TDM connections for up to 8 channels at 48kHz

ADCs/DACs - Special Purpose Applications

• Professional audio recording equipment
• Sound reinforcement systems
• Audio effects processing units
• High-end A/V receivers

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'EQ' against the manufacturer's datasheet to confirm package type and moisture sensitivity level. Ensure power supply rails match the specified analog (4.75-5.25V) and digital (3.0-3.6V) requirements during integration. Confirm availability through authorized distributors as lead times may vary.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring low group delay and high channel count without sacrificing dynamic range. Compare against standard stereo ADCs if more than four channels are needed. Verify that the system can accommodate the separate analog and digital power domains. Consider the 44-pin LQFP package dimensions for PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

The AK5388AEQ belongs to the AK5388 family of professional audio ADCs from Asahi Kasei Microdevices. It is part of a series including variants like AK5388, AK5388A, and AK5388EQ, which share core architectural features but may differ in packaging or environmental ratings. This specific model targets the high-fidelity segment where phase linearity and low latency are critical.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include AK5388, AK5388A, and AK5388EQ. Verify if the suffix change impacts only packaging or also electrical characteristics. Cross-model comparison should focus on channel count and sampling rate limits.