CS4349-CZZR

ADCs/DACs - Special Purpose Overview

The CS4349-CZZR is a stereo digital-to-analog converter (DAC) from Cirrus Logic, utilizing an advanced multibit delta-sigma architecture. It supports audio sample rates up to 192 kHz with 24-bit resolution and features integrated digital interpolation, de-emphasis, volume control, and analog filtering. The device operates on a +3.3 V or +5.0 V analog supply and includes Popguard® technology for transient suppression. Key electrical specifications include a typical dynamic range of 101 dB (A-weighted) and THD+N performance of -91 dB at 5.0 V and -84 dB at 3.3 V.

ADCs/DACs - Special Purpose Feature Summary

• Advanced multibit delta-sigma architecture providing ideal linearity and tolerance to clock jitter
• Integrated digital volume control with soft ramp and zero-crossing transitions
• Supports standard serial audio formats including TDM, I²S, Left-Justified, and Right-Justified
• Popguard® technology controls clicks and pops during power-up and power-down

ADCs/DACs - Special Purpose Applications

• DVD players and recorders
• Set-top boxes and digital TVs
• Mini-component systems
• Musical instruments
• Automotive audio systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix '-CZZR' against current manufacturer documentation to confirm package type and commercial temperature grade (-40°C to +85°C). Ensure that the ordering information aligns with the latest datasheet revision DS782F2, as component availability and packaging details may change over time.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4349-CZZR for cost-sensitive two-channel audio applications requiring high fidelity. Ensure the design accommodates the required analog supply voltage (3.3 V or 5.0 V) and logic supplies (1.5 V to 5.0 V). Consider the automotive variant (-DZZ) if operation beyond +85°C is required.

ADCs/DACs - Special Purpose Part Context

The CS4349 belongs to Cirrus Logic's lineup of complete stereo DAC systems. It integrates digital interpolation, 5th-order multibit delta-sigma conversion, and analog filtering into a single 24-pin TSSOP package. This integration minimizes external component count while maintaining high performance standards for consumer and automotive electronics.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.