AK4101AVQ

Overview

The AK4101AVQ is a four-output digital audio transmitter (DIT) manufactured by Asahi Kasei Microdevices/AKM. It supports sampling rates up to 192kHz and interfaces with AES3, IEC60958, S/PDIF, and EIAJ CP1201 standards. The device accepts audio data and auxiliary information, applying biphase encoding before driving the signal onto a cable via four on-chip RS422 line drivers. It features a 64-byte buffer for channel status and user bits, supporting both synchronous and asynchronous access. Powered by a 4.75V to 5.25V supply, it operates within a temperature range of -40°C to 85°C and is housed in a 44-LQFP package.

Feature Summary

• Four integrated RS422 line drivers for professional and consumer digital audio formats
• Supports sampling rates from 28kHz to 192kHz across multiple clock frequencies
• Includes 64-byte on-chip buffer memory for Channel Status and User bits
• Generates CRC codes and parity bits automatically

Applications

• Digital Audio Interfacing
• AES3/IEC60958 Transmitter Systems
• S/PDIF Output Modules
• EIAJ CP1201 Interface Applications

Procurement Notes

Verify the specific ordering suffix 'VQ' against the manufacturer's official datasheet to confirm package dimensions and tape/reel specifications. Confirm that the 44-LQFP variant matches the required footprint for PCB layout. Check current product lifecycle status as components may be subject to discontinuation notices.

Selection Notes

Select this component when a four-channel digital output is required for high-fidelity audio transmission. Ensure the system design accommodates the 4.75V to 5.25V power supply requirement. Verify compatibility with the supported audio formats, including Left/Right justified and I2S inputs, before integration into the host interface.

Part Context

This part belongs to the AK4101A series of digital audio transmitters. It is designed to convert parallel audio data into serial bitstreams suitable for transmission over coaxial or optical cables. The device simplifies the design of digital audio systems by integrating encoding and line driving functions into a single package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's PCN or obsolescence notices for potential replacement recommendations if this part is discontinued.