CS35L45-CWZR

Audio Amplifiers Overview

The CS35L45-CWZR is a 55 nm smart boosted amplifier solution featuring an integrated DSP that drives high-volume audio in mobile devices. It functions as a mono 6.8 W Class D amplifier with the lowest noise and quiescent power consumption in its class. A digitally controlled Class H tracking inductive boost converter raises battery voltages up to 15 V for playback. The device includes voltage and current sensing feedback to enhance algorithm accuracy. It supports I2S, TDM, SPI/I2C, and SoundWire interfaces.

Audio Amplifiers Feature Summary

• Integrates Halo Core™ DSP running transducer protection, adaptive battery management, and audio enhancement algorithms.
• Features a Class H digital boost converter capable of programmable output voltages up to 15 V.
• Includes second-generation Predictive Input Current Limiter (PICL) for intelligent battery current regulation.
• Provides speaker protection via voice coil impedance monitoring, over-temperature, and over-excursion safeguards.

Audio Amplifiers Applications

• Smartphones
• Tablets
• Mobile gaming devices

Audio Amplifiers Procurement Notes

Verify the specific package marking and tape-and-reel specifications against the official Cirrus Logic datasheet before finalizing procurement plans. Confirm interface compatibility requirements for I2S, TDM, or SoundWire connections within the target system architecture. Ensure design alignment with the 36-ball WLCSP footprint dimensions and thermal dissipation guidelines provided in the product documentation.

Audio Amplifiers Selection Notes

Select this component when maximum loudness and bass response are required without compromising sound quality in compact mobile form factors. The integrated Class H boost converter and advanced DSP algorithms make it suitable for designs needing precise battery current management and comprehensive speaker protection. Evaluate the 6.5 mm² package size against available PCB real estate constraints.

Audio Amplifiers Part Context

The CS35L45 belongs to Cirrus Logic’s line of smart boosted amplifiers designed for portable electronics. It represents a flagship audio IC engineered to maximize performance while minimizing power consumption. The device integrates both the power stage and control logic into a single small-footprint package, simplifying system design for manufacturers of smartphones and tablets.

Audio Amplifiers Replacement Considerations

Consult official Cirrus Logic documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameter alignment before considering alternative components from the same manufacturer family.