AK4121AVF

Overview

The AK4121AVF is a single-channel digital sample rate converter (SRC) manufactured by Asahi Kasei Microdevices. Designed for digital audio interfacing, it operates within a supply voltage range of 3V to 3.6V and supports sampling frequencies from 8kHz to 96kHz. The device utilizes a serial interface and is housed in a 24-VSOP (LSSOP) surface-mount package with a width of 5.60mm. It functions reliably across an operating temperature range of -40°C to 85°C (TA). This component facilitates precise clock domain crossing and sample rate conversion for professional and consumer audio applications.

Feature Summary

• Single-channel digital sample rate converter architecture
• Supports input/output sampling rates between 8kHz and 96kHz
• Operates on a 3V to 3.6V power supply
• Housed in a compact 24-VSOP surface-mount package

Applications

• Digital audio interfacing systems
• Clock domain synchronization in audio chains
• Sample rate conversion for professional audio equipment

Procurement Notes

Verify the specific suffix 'AVF' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Confirm that the 24-VSOP package dimensions align with the target PCB footprint. Ensure the selected variant meets the required -40°C to 85°C ambient temperature operating range for the intended environment.

Selection Notes

Select this component when a single-channel SRC solution is required for frequencies up to 96kHz. Compare against multi-channel alternatives like the AK4127 if stereo processing is needed. Verify that the serial interface protocol matches the source and destination devices in the audio system design.

Part Context

The AK4121 series belongs to Asahi Kasei Microdevices' portfolio of digital audio interface ICs. It serves as a specialized solution for converting audio data between different clock domains. The AVF designation indicates the specific package type and tape/reel packaging configuration for automated assembly.

Replacement Considerations

Check for direct replacements within the AK4121 family or cross-reference with similar single-channel SRCs from other manufacturers. Ensure pin-to-pin compatibility if substituting in an existing design.