CS4365-DQZ

ADCs/DACs - Special Purpose Overview

The CS4365-DQZ is a 6-channel digital-to-analog converter (DAC) from Cirrus Logic, designed for high-fidelity audio applications. It features a multi-bit delta-sigma architecture with 24-bit resolution and supports sample rates up to 192 kHz. The device includes a proprietary Direct Stream Digital (DSD) processor allowing non-decimating volume control and on-chip filtering. Key electrical specifications include an analog supply voltage of 5 V, a digital supply of 2.5 V, and separate logic supplies ranging from 1.8 V to 5 V. It offers 114 dB dynamic range and -100 dB THD+N in the automotive grade (-DQZ), operating within a temperature range of -40°C to +105°C.

ADCs/DACs - Special Purpose Feature Summary

• 6-Channel Multi-bit Delta Sigma DAC with 24-bit resolution
• Proprietary DSD Processor with Non-Decimating Volume Control
• Selectable Fast and Slow Digital Interpolation Filters
• Half-dB Step Size Volume Control with Soft Ramp

ADCs/DACs - Special Purpose Applications

• SACD Players
• A/V Receivers
• Automotive Audio Systems
• Digital TVs
• Mixing Consoles

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix '-DQZ' confirms the Automotive grade variant with an extended operating temperature range of -40°C to +105°C. Confirm package type is 48-pin LQFP. Check current availability status as this component may be subject to discontinuation or lifecycle changes.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4365-DQZ for designs requiring dedicated DSD processing without intermediate decimation stages. Ensure power supply rails match the specified 5 V analog, 2.5 V digital, and 1.8–5 V logic requirements. Verify interface compatibility with I²C or SPI control ports and PCM/DSD serial data inputs.

ADCs/DACs - Special Purpose Part Context

The CS4365 belongs to Cirrus Logic's family of high-performance audio DACs. The -DQZ suffix denotes the Automotive grade version, distinct from the Commercial grade (-CQZ) which typically operates up to +85°C. Both variants share the same pinout and functional specifications but differ in thermal endurance and reliability standards.

ADCs/DACs - Special Purpose Replacement Considerations

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