CS4412A-CNZ

Audio Amplifiers Overview

The CS4412A-CNZ is a high-efficiency Class-D digital amplifier power stage from Cirrus Logic, housed in a 48-pin QFN-EP package. It accepts PWM inputs and supports configurable output topologies including stereo full-bridge (2x15W into 8Ω), parallel full-bridge (1x30W into 4Ω), quad half-bridge (4x7.5W into 4Ω), and hybrid configurations. Operating on an 8V to 18V supply, it delivers over 100 dB dynamic range with less than 0.1% THD+N at 1W. The device integrates thermal warning, over-current, and under-voltage protection with error reporting.

Audio Amplifiers Feature Summary

• Configurable multi-channel output topology supporting stereo full-bridge, parallel full-bridge, quad half-bridge, and hybrid modes via hardware configuration pins.
• PWM Popguard technology minimizes audio transients during startup and shutdown for half-bridge configurations.
• Integrated protection mechanisms include over-current, thermal warning, thermal overload, and under-voltage detection with open-drain error flags.
• Space-efficient thermally enhanced QFN package eliminates the need for external heat sinks.

Audio Amplifiers Applications

• Integrated Digital Televisions
• Portable Media Player Docking Stations
• Mini/Micro Shelf Systems
• Powered Desktop Speakers

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any updates to ordering information or electrical characteristics. Ensure proper handling procedures are followed due to the exposed thermal pad design.

Audio Amplifiers Selection Notes

Select this component when a flexible Class-D power stage is required for space-constrained audio systems. It is suitable for designs needing multiple output configurations without additional discrete components. Consider the 8V to 18V supply range and the specific thermal management requirements of the chosen output mode.

Audio Amplifiers Part Context

This part belongs to the Cirrus Logic CS4412A series of digital amplifier power stages. It is designed to interface with PWM modulators like the CS4525. The CNZ suffix indicates the commercial temperature grade (-10°C to +70°C) and the 48-QFN-EP package type.

Audio Amplifiers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.