CS3511-CNZR

Audio Amplifiers Overview

The CS3511-CNZR is a stereo 10 W high-efficiency Class-D audio power amplifier manufactured by Cirrus Logic. It operates on a single supply voltage typically ranging from 9 V to 12 V, with an absolute maximum rating of 13.2 V. The device delivers up to 7.6 W per channel into an 8 Ω load and 9.5 W into a 6 Ω load at 1% THD+N. Key electrical specifications include a system-level dynamic range of 99 dB, total harmonic distortion plus noise of 0.025% at 5 W output, and channel separation of -104 dB. It features four selectable gain settings (13.6 dB to 27.3 dB) and integrates a 5 V regulator for internal circuitry.

Audio Amplifiers Feature Summary

• Closed-loop Advanced Delta-Sigma architecture with True Spread Spectrum Modulation for premium audio quality
• Integrated protection circuits including automatic recovery for over-current, under-voltage, and thermal overload conditions
• On-chip 5 VDC regulator eliminates the need for external bootstrap capacitors
• Supports both differential and single-ended audio input configurations

Audio Amplifiers Applications

• Active Speakers
• Portable Media Player Docking Stations
• Mini/Micro Shelf Systems
• Digital Televisions

Audio Amplifiers Procurement Notes

Verify the specific suffix CNZR against the manufacturer's current datasheet to confirm package type and commercial temperature grade (-10°C to +70°C). Ensure compatibility with the required 32-pin QFN footprint and thermal pad grounding requirements during PCB layout. Confirm that the design supports the necessary charge pump components and full-bridge output filters as specified in the application guidelines.

Audio Amplifiers Selection Notes

Select this component for applications requiring high efficiency and low distortion in a compact form factor without external heat sinks. Consider the four programmable gain levels to match various speaker impedances and input signal levels. Evaluate the integrated protection features for robust operation in consumer electronics where fault tolerance is critical. Ensure the power supply can provide peak currents up to 2.7 A to support the amplifier's performance capabilities.

Audio Amplifiers Part Context

The CS3511 belongs to Cirrus Logic's Class-D audio amplifier family, designed for high-power stereo applications. It utilizes a PWM amplification technique to achieve high efficiency while maintaining audio fidelity. The device is part of a broader portfolio of audio ICs that integrate digital control and analog power stages, targeting portable and fixed audio systems requiring significant output power in small packages.

Audio Amplifiers Replacement Considerations

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