CS4349-CZZ

ADCs/DACs - Special Purpose Overview

The CS4349-CZZ is a stereo digital-to-analog converter (DAC) from Cirrus Logic, featuring a 24-bit multibit delta-sigma architecture. It supports audio sample rates up to 192 kHz and includes integrated digital interpolation, de-emphasis, volume control, and analog filtering. The device operates with a +3.3 V or +5.0 V analog supply and accepts logic supplies from +1.5 V to +5.0 V. 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. It utilizes a single-ended analog output architecture and is housed in a 24-pin TSSOP package.

ADCs/DACs - Special Purpose Feature Summary

• Advanced multibit delta-sigma architecture for ideal linearity and low distortion
• Integrated digital volume control with soft ramp and zero-crossing mute
• Supports standard serial audio formats including I²S, Left-Justified, Right-Justified, and TDM
• Popguard® technology for transient control during power-up and power-down

ADCs/DACs - Special Purpose Applications

• DVD players and recorders
• Set-top boxes
• Digital TVs
• Mini-component systems
• Musical instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'CZZ' corresponds to the Commercial grade (-40°C to +85°C) variant as defined in the datasheet. Confirm that the source documentation explicitly lists this part number; generic family data may not apply to all suffix variations. Ensure compatibility with required voltage levels and interface protocols before integration.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4349-CZZ for cost-sensitive two-channel audio systems requiring high fidelity. The commercial temperature range (-40°C to +85°C) suits most consumer electronics. Consider the Automotive grade (-DZZ) if operation up to +105°C is required. Verify that the system clocking and serial interface format align with the host processor's capabilities.

ADCs/DACs - Special Purpose Part Context

The CS4349 belongs to the CS4349 series of complete stereo DAC systems. It integrates digital interpolation filters, 5th-order multi-bit delta-sigma conversion, and analog output stages. The device simplifies design by minimizing external components while providing robust features like automatic sample-rate detection and channel mixing via its control port.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's obsolescence notices or current product selection guides for potential replacements.