AK5354VT

ADCs/DACs - Special Purpose Overview

The AK5354VT is a low-voltage, 20-bit delta-sigma analog-to-digital converter (ADC) designed for digital audio systems. It integrates an analog input programmable gain amplifier (PGA), making it suitable for microphone applications. The device features two stereo input selectors and supports single-ended analog inputs without requiring external filters. It operates with separate analog (VA: 2.1–3.3V) and digital (VD: 1.8–3.3V) power supplies. Key performance metrics include a signal-to-noise ratio of 89dB and a dynamic range of 89dB at typical conditions. The component utilizes a 3-wire serial control interface and supports MSB-first or I2S audio data formats.

ADCs/DACs - Special Purpose Feature Summary

• 20-bit resolution with integrated Analog Input PGA for direct microphone connection
• Dual stereo input selector with monaural mixing capabilities
• Built-in digital high-pass filter (fc=3.4Hz@fs=44.1kHz) for DC-offset cancellation
• Low voltage operation: VA 2.1–3.3V, VD 1.8–3.3V

ADCs/DACs - Special Purpose Applications

• Digital audio recording systems
• Microphone pre-amplifier interfaces
• Portable audio devices requiring low power consumption
• Embedded audio capture modules

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix 'VT' corresponds to the 16-pin TSSOP package and -40°C to +85°C operating temperature range as defined in the official Asahi Kasei Microdevices datasheet. Confirm that the source document explicitly identifies this part number before procurement to ensure compatibility with system voltage levels and interface requirements.

ADCs/DACs - Special Purpose Selection Notes

Select the AK5354VT when a 20-bit resolution is sufficient and low-voltage digital interfacing (1.8V) is required. Ensure the application can accommodate single-ended analog inputs and utilizes the internal PGA. Verify that the system clock architecture supports the required 256fs or 384fs master clock inputs for proper ADC operation.

ADCs/DACs - Special Purpose Part Context

The AK5354VT belongs to the AK5354 family from Asahi Kasei Microdevices. It is specifically packaged in a 16-pin TSSOP form factor with a 0.65mm pitch. This variant is distinct from other AKM audio ADCs by its combination of 20-bit resolution, integrated PGA, and dual stereo input selection within a compact surface-mount package.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Asahi Kasei Microdevices directly for current equivalent components or updated product line recommendations.