AK4104ET

Overview

The AK4104ET is a digital audio interface transmitter (DIT) manufactured by Asahi Kasei Microdevices/AKM. It supports sampling rates up to 192kHz and encodes audio data according to AES3, IEC60958, S/PDIF, and EIAJ CP1201 standards. The device accepts serial audio data via four supported formats and generates parity bits for transmission. It operates on a single power supply ranging from 2.7V to 3.6V and functions within an ambient temperature range of -20°C to 85°C. The component is housed in a 16-pin TSSOP package with a 0.65mm pitch.

Feature Summary

• Supports sampling rates up to 192kHz with 24-bit resolution
• Encodes data for AES3, IEC60958, S/PDIF, and EIAJ CP1201 interfaces
• Includes a 42-bit channel status buffer for control data
• Features a 4-wire or 3-wire serial host interface for register configuration

Applications

• Digital audio systems requiring consumer format transmission
• Optical transmitting modules connected to microcontrollers
• Audio equipment supporting multiple clock frequencies (128fs to 1536fs)

Procurement Notes

Verify the specific suffix ET corresponds to the 16-pin TSSOP package with a -20°C to +85°C operating temperature range. Confirm that the ordering information matches the manufacturer's current documentation, as product specifications may be subject to change without notice. Ensure compatibility with the required voltage supply and interface standards before integration.

Selection Notes

Select this component when a single-channel digital audio transmitter is required for consumer audio formats. It supports both 4-wire and 3-wire serial interfaces, allowing flexibility in host controller connections. The device accommodates various master clock frequencies relative to the sample rate, facilitating synchronization with different audio sources. Ensure the design accounts for the specified 2.7V to 3.6V power supply requirements.

Part Context

The AK4104ET belongs to the AK4104 series of digital audio interface transmitters. It is designed to handle serial audio data input and convert it into bi-phase mark encoded signals suitable for transmission over coaxial or optical cables. The part includes internal registers for controlling channel status bits and validity flags, providing comprehensive management of the audio data stream.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer for current availability and potential alternative components if the AK4104ET is discontinued or unavailable.