CS4350-DZZR

ADCs/DACs - Special Purpose Overview

The CS4350-DZZR is an automotive-grade stereo digital-to-analog converter (DAC) from Cirrus Logic. It features a 24-bit multibit delta-sigma architecture supporting audio sample rates up to 192 kHz. The device integrates a phase-locked loop (PLL) for master clock derivation, eliminating external components. Key electrical specifications include a dynamic range of 109 dB and -91 dB THD+N. It operates with analog power supplies between 3.14 V and 5.25 V and supports serial audio interfaces including TDM. The component is housed in a 24-pin QFN package designed for high thermal efficiency.

ADCs/DACs - Special Purpose Feature Summary

• Integrated PLL locks to incoming LRCK to derive master clock without external loop filter components
• 24-bit resolution with 109 dB dynamic range and -91 dB THD+N performance
• Supports standard serial audio formats including Time-Division Multiplex (TDM)
• Popguard technology controls clicks and pops during power-up and power-down

ADCs/DACs - Special Purpose Applications

• Automotive audio systems
• DVD players and recorders
• Set-top boxes
• Digital TVs
• Mini-component systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the -DZZ suffix indicates Automotive grade qualification (-40°C to +105°C). Confirm the -R suffix corresponds to tape-and-reel packaging. Check current lifecycle status as automotive variants may have different availability than commercial grades.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring extended temperature ranges up to +105°C. Ensure the system design accommodates the 24-pin QFN package thermal pad requirements. Verify compatibility with the required serial interface format, such as TDM, if used.

ADCs/DACs - Special Purpose Part Context

The CS4350-DZZR belongs to the CS4350 family of stereo DACs. The -DZZ suffix specifically denotes the Automotive grade variant available in a 24-pin QFN package. This distinguishes it from the Commercial grade (-CZZ/-CNZ) which typically has a lower maximum operating temperature of +85°C.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements within the same family include CS4350-CZZR or CS4350-CNZR for commercial applications. For automotive use, verify if other Cirrus Logic automotive DACs meet the specific pinout and thermal requirements.