STA529Q

Overview

The STA529Q is a digital stereo Class-D audio amplifier manufactured by STMicroelectronics. It integrates an audio DSP, a proprietary high-efficiency Class-D driver, and a CMOS power output stage. The device supports both analog and digital inputs, including FFX audio codec interfaces. It delivers 2 x 100 mW output power and operates within a supply voltage range up to 1.95V. The component is housed in a 52-pin VFQFPN package (8x8 mm) and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 2.0 multichannel digital audio processor with FFX interface capabilities
• Combines an audio DSP with a high-efficiency Class-D driver and CMOS power output stage
• Supports flexible input configurations including analog signals and serial digital formats

Applications

• Headphone amplification circuits requiring low power consumption
• Portable audio devices utilizing digital audio interfaces
• Embedded systems integrating FFX audio codecs

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary by distributor region. Confirm that the required digital audio protocol support matches your system's FFX implementation. Ensure thermal management aligns with the specified operating temperature range for your intended enclosure design.

Selection Notes

Select this component when a combined digital processing and amplification solution is required for stereo audio applications. It is suitable for designs needing integrated DSP functionality alongside Class-D amplification in a compact footprint. Consider the 52-pin VFQFPN package constraints during PCB layout planning.

Part Context

This part belongs to STMicroelectronics' audio amplifier family, specifically designed for high-efficiency sound reproduction. It serves as a complete solution for digital audio endpoints, reducing the need for external discrete components by integrating the driver, output stage, and digital signal processing into a single IC.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing board layouts if considering alternative manufacturers.

FAQ

Does the STA529Q support both analog and digital audio inputs?

Yes, the device is designed to accept both analog input signals and digital serial audio formats.

What is the maximum supply voltage for the STA529Q?

The maximum supply voltage specified for operation is 1.95V.