CS4382A-DQZ

ADCs/DACs - Special Purpose Overview

The CS4382A-DQZ is an automotive-grade, 8-channel digital-to-analog converter (DAC) from Cirrus Logic. It utilizes a multi-bit delta-sigma architecture with 24-bit resolution and supports sample rates up to 192 kHz. The device achieves a dynamic range of 114 dB and -100 dB THD+N. It features direct stream digital (DSD) processing with an on-chip 50 kHz filter, selectable digital interpolation filters, and volume control with soft ramp capabilities. Operating conditions include a +5 V analog supply, +2.5 V digital supply, and logic supplies ranging from 1.8 V to 5 V.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel DAC with 24-bit resolution and 192 kHz maximum sample rate
• 114 dB dynamic range and -100 dB THD+N performance
• Integrated DSD processor with 50 kHz on-chip filtering
• Selectable fast/slow digital interpolation filters and 1 dB step volume control

ADCs/DACs - Special Purpose Applications

• Automotive audio systems
• SACD players
• A/V receivers
• Digital mixing consoles
• Sound cards

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific -DQZ suffix indicates the Automotive grade operating temperature range of -40°C to +105°C. Confirm power supply requirements match the datasheet specifications: VA at 5 V, VD at 2.5 V, and logic supplies between 1.8 V and 5 V. Ensure interface compatibility with I²C or SPI control protocols.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4382A-DQZ for applications requiring high channel count and low jitter sensitivity in automotive environments. Compare against the Commercial grade (-CQZ) variant if the operating temperature range of -40°C to +85°C is sufficient. Verify that the system supports the required serial audio formats including PCM and DSD inputs.

ADCs/DACs - Special Purpose Part Context

The CS4382A-DQZ belongs to the CS4382 family of high-performance DACs. It shares architectural similarities with other Cirrus Logic audio converters but is distinguished by its automotive qualification and specific pinout configuration in the 48-pin LQFP package. It serves as a complete digital-to-analog solution integrating modulation and filtering stages.

ADCs/DACs - Special Purpose Replacement Considerations

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