CS43131-CWZR

Digital To Analog Converters Overview

The CS43131-CWZR is a high-performance audio digital-to-analog converter (DAC) integrated with a headphone driver, manufactured by Cirrus Logic. It features a 32-bit resolution and supports dual-channel conversion within a 42-WLCSP package. The device operates on a supply voltage ranging from 1.66 V to 1.94 V and functions between -10°C and +70°C. Key electrical specifications include a dynamic range of 130 dB and a THD+N of -115 dB. It utilizes an I2S interface for data input and includes an integrated H-class headphone amplifier capable of delivering 2 VRMS output into 600 Ω loads.

Digital To Analog Converters Feature Summary

• Integrates a MasterHIFI audio DAC with an H-class headphone amplifier for system-level performance optimization.
• Supports DSD playback up to DSD256 rates alongside PCM formats via multiple serial audio interfaces.
• Features proprietary AC impedance detection technology to adapt audio processing based on connected headphone characteristics.

Digital To Analog Converters Applications

• High-fidelity mobile devices requiring independent Hi-Fi audio processing
• USB-C to 3.5mm professional audio adapters
• Portable audio players and dongles

Digital To Analog Converters Procurement Notes

Verify the specific suffix CWZR against official datasheets to confirm the WLCSP-42 packaging variant. Ensure compatibility with I2S or TDM host interfaces. Confirm RoHS compliance status through current manufacturer certificates before integration.

Digital To Analog Converters Selection Notes

Select this component when board space is limited due to its compact WLCSP form factor. It is suitable for designs requiring high output voltage swing for high-impedance headphones without external amplification. Verify that the host processor supports the required serial audio protocols and sampling rates up to DSD256.

Digital To Analog Converters Part Context

This part belongs to the CS4313x series, representing an evolution in Cirrus Logic's MasterHIFI portfolio. It succeeds earlier models like the CS43130, offering improved distortion metrics and higher DSD support capabilities while maintaining low power consumption profiles suitable for battery-operated electronics.

Digital To Analog Converters Replacement Considerations

The CS43130 is a related predecessor model. Direct substitution requires verification of pinout compatibility and software register adjustments, as the CS43131 offers enhanced DSD support and lower THD+N compared to the CS43130.

Digital To Analog Converters FAQ

What is the maximum DSD playback rate supported?

The CS43131-CWZR supports native DSD playback up to DSD256 rates.

How does the device handle different headphone impedances?

It employs proprietary AC impedance detection to identify connected headphones and applies adaptive post-processing for consistent audio quality across varying impedances.

What is the typical output capability for high-impedance loads?

The integrated amplifier can deliver up to 2 VRMS output level into 600 Ω loads.