AK5385AVF

ADCs/DACs - Special Purpose Overview

The AK5385AVF is a 24-bit, 192kHz sampling stereo A/D converter designed for high-end audio systems. It utilizes an Enhanced Dual Bit Delta-Sigma modulator architecture to achieve a dynamic range of 114dB and an S/N ratio of 114dB. The device features full differential analog inputs and supports sampling rates from 8kHz to 216kHz. It operates with a 5V analog supply (4.75V–5.25V) and a 3.0V–5.25V digital supply. The component is housed in a 28-pin VSOP package with a 0.65mm pitch, suitable for applications requiring reduced board space.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 114dB Dynamic Range and S/N ratio
• Sampling rate support from 8kHz to 216kHz
• Full differential analog input configuration
• Integrated high-performance linear phase digital anti-alias filter

ADCs/DACs - Special Purpose Applications

• High-end AV amplifiers
• AV recorders
• Electronic musical instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'VF' corresponds to the 28-pin VSOP package and the -40°C to +85°C operating temperature range. Confirm that the analog supply voltage requirements (4.75V–5.25V) align with the system design, as this differs from standard 3.3V logic-only interfaces.

ADCs/DACs - Special Purpose Selection Notes

Select the AK5385AVF when a 24-bit stereo ADC with high dynamic range (114dB) and wide sampling frequency support up to 216kHz is required. Ensure the design accommodates the 5V analog supply requirement and the 28-pin VSOP footprint. Consider the semi-pin compatibility with AK5383/AK5393/AK5394A if migrating from previous designs.

ADCs/DACs - Special Purpose Part Context

The AK5385AVF belongs to the AK5385A series of audio A/D converters. It is part of a family that includes pin-compatible or semi-pin compatible variants such as the AK5383, AK5393, and AK5394A, allowing for potential design flexibility within similar form factors while maintaining different performance characteristics.

ADCs/DACs - Special Purpose Replacement Considerations

The datasheet notes semi-pin compatibility with the AK5383, AK5393, and AK5394A. However, these alternatives have different specifications regarding sampling rates, dynamic range, and input configurations. Direct substitution requires verification of electrical parameters and interface timing.