CS4351-DZZR

ADCs/DACs - Special Purpose Overview

The CS4351-DZZR is a stereo digital-to-analog converter (DAC) from Cirrus Logic, operating within an extended temperature range of -40°C to +85°C. It features a fifth-order multi-bit delta-sigma architecture with 24-bit resolution and supports sample rates up to 192 kHz. The device delivers a typical dynamic range of 112 dB (A-weighted) and achieves -100 dB THD+N at full scale. It integrates a digital interpolation filter, volume control, and on-chip analog filtering. The DAC provides a 2 Vrms line-level output into a 5 kΩ AC load, powered by separate +3.3 V digital/analog supplies and a +9 to +12 V high-voltage analog supply.

ADCs/DACs - Special Purpose Feature Summary

• Multi-bit delta-sigma modulation with 24-bit resolution and up to 192 kHz sample rate support
• Integrated digital volume control with soft ramp and zero-crossing mute capabilities
• ATAPI mixing functionality for channel mixing and muting
• Popguard technology to suppress clicks and pops during power-up and power-down sequences

ADCs/DACs - Special Purpose Applications

• DVD players and A/V receivers
• Set-top boxes and digital TVs
• Mini-component audio systems
• Mixing consoles

ADCs/DACs - Special Purpose Procurement Notes

Verify the -DZZR suffix confirms the automotive-grade temperature rating (-40°C to +85°C). Confirm that the specific revision matches current manufacturing standards, as older datasheets may reference superseded versions. Ensure compatibility with existing power supply rails (+3.3V and +9-12V) before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high dynamic range (112 dB) and low distortion (-100 dB THD+N) in a cost-sensitive design. The integrated volume control and ATAPI mixing reduce external component count. Ensure the system clocking supports the required MCLK frequencies up to 51.2 MHz for the desired sample rate mode.

ADCs/DACs - Special Purpose Part Context

The CS4351 belongs to Cirrus Logic's stereo DAC family designed for consumer audio electronics. It serves as a complete system solution by combining digital filtering, delta-sigma conversion, and analog driving stages. The -DZZR variant specifically denotes the industrial/automotive temperature grade compared to commercial variants.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.