AX5689GRK-Z

Overview

The AX5689GRK-Z is a Class-D digital audio converter and amplifier controller manufactured by Monolithic Power Systems. It operates within a supply voltage range of 3 V to 3.6 V and supports four channels in a BTL configuration. The device features a THD+N performance of -100 dB and a gain-bandwidth product of 60 kHz. It has a quiescent current of 4.4 mA and a slew rate of 14 mA/us. The component is housed in a QFN-64 package, suitable for SMD/SMT installation, and functions within an operating temperature range of -40 C to +85 C.

Feature Summary

• Integrates digital audio conversion with Class-D amplification capabilities
• Supports four-channel bridge-tied load (BTL) output configurations
• Includes shutdown functionality for power management

Applications

• Digital audio systems requiring integrated conversion and amplification
• Multi-channel audio processing units
• Embedded audio controllers

Procurement Notes

Verify the obsolete status of this component before design finalization, as the manufacturer indicates it will be discontinued. Confirm availability through authorized distributors or secondary markets if procurement is necessary. Ensure that any replacement strategy accounts for the end-of-life notification timeline to prevent supply chain disruptions during production phases.

Selection Notes

Select this component when a combined digital audio converter and Class-D amplifier solution is required for multi-channel applications. Consider the specific supply voltage constraints between 3 V and 3.6 V and the thermal requirements associated with the QFN-64 package. Evaluate the need for the specified -100 dB THD+N performance against system audio quality standards.

Part Context

This part belongs to the AX5689 series from Monolithic Power Systems, specifically under the Axign trademark. It is categorized as an audio amplifier IC designed for high-fidelity digital audio applications. The component represents a specialized integration of signal processing and power amplification stages within a single compact semiconductor package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, alternative components must be identified based on functional equivalence and pin compatibility rather than direct manufacturer substitution lists.