CS4525-CNZR

Audio Amplifiers Overview

The CS4525-CNZR is a stereo Class D audio amplifier system with an integrated stereo analog-to-digital converter. It delivers up to 15 W per channel into 8 Ω speakers from a 48-pin QFN package, achieving greater than 85% efficiency without requiring a heatsink. The device features fully integrated power MOSFETs and configurable outputs including 1 x 30 W parallel full-bridge, 2 x 15 W full-bridge, or 2 x 7 W half-bridge plus 1 x 15 W full-bridge. It includes a 24-bit, 48 kHz ADC with 95 dB dynamic range and digital signal processing capabilities.

Audio Amplifiers Feature Summary

• Integrates on-chip over-current, under-voltage, and over-temperature protection with programmable thermal foldback for interruption-free power-stage protection.
• Features an asynchronous two-channel digital serial port with an integrated sample rate converter to eliminate clock-jitter effects and simplify system integration.
• Includes comprehensive digital audio processing such as five programmable parametric EQ filters, adaptive loudness compensation, and a two-channel mixer.
• Utilizes spread spectrum PWM modulation to reduce EMI radiated energy and incorporates PWM Popguard technology for transient control in half-bridge mode.

Audio Amplifiers Applications

• Integrated Digital TVs
• Flat Panel TV Monitors
• Digital Powered Speakers

Audio Amplifiers Procurement Notes

Verify the specific suffix CNZR indicates tape and reel packaging when sourcing components. Confirm that the commercial grade operating temperature range of -10°C to +70°C aligns with your design requirements. Ensure compatibility with the 48-pin QFN footprint during PCB layout planning.

Audio Amplifiers Selection Notes

Select this component for designs requiring high-efficiency amplification without external heat sinks. Consider its integrated SRC if input sample rates vary from the internal PWM switching frequency. Evaluate the digital processing features if complex audio filtering and mixing are needed within a single IC.

Audio Amplifiers Part Context

This part belongs to Cirrus Logic's digital audio amplifier family designed for space-constrained applications. It combines power amplification with analog-to-digital conversion and digital signal processing. The 48-pin QFN package provides a thermally enhanced solution suitable for consumer electronics where board real estate is limited.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and software register compatibility before considering alternative devices from other manufacturers.

Audio Amplifiers FAQ

How does the CS4525 handle thermal management?

The device eliminates the need for a heatsink through a thermally enhanced package and offers programmable thermal foldback to reduce output power during thermal warnings, ensuring interruption-free operation.

What digital audio formats are supported by the serial interface?

The main digital serial port supports Left-Justified, I²S, and Right-Justified data formats with resolutions up to 24 bits.