CS4382A-DQZR

ADCs/DACs - Special Purpose Overview

The CS4382A-DQZR is an automotive-grade, 8-channel digital-to-analog converter (DAC) from Cirrus Logic. It features a 24-bit resolution and supports sample rates up to 192 kHz for PCM and Direct Stream Digital (DSD) formats. The device utilizes an advanced multi-bit delta-sigma architecture with mismatch shaping technology to eliminate distortion caused by capacitor mismatch. Key electrical specifications include a typical dynamic range of 114 dB and a total harmonic distortion plus noise (THD+N) of -100 dB. It operates with a +5 V analog supply and a +2.5 V digital supply, housed in a 48-pin LQFP package.

ADCs/DACs - Special Purpose Feature Summary

• Advanced Multi-bit Delta Sigma Architecture with mismatch shaping technology
• Supports PCM data at 4 kHz to 216 kHz and DSD audio formats
• Integrated 50 kHz on-chip filter for DSD mode without intermediate decimation
• Selectable fast and slow digital interpolation filters with de-emphasis

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

The CS4382A-DQZR is the automotive grade variant (-DQZ) of the CS4382A series. Verify that the specific ordering suffix matches the required temperature range of -40°C to +105°C. Confirm compatibility with the 48-pin LQFP package dimensions before integration into the design.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4382A-DQZR for applications requiring high channel count and low jitter sensitivity in automotive environments. Ensure power supply rails are set to VA = 5 V and VD = 2.5 V. The device supports both I²C and SPI control interfaces, allowing flexibility in system configuration.

ADCs/DACs - Special Purpose Part Context

This component belongs to the CS4382 family of high-performance DACs. The 'DQZR' suffix indicates the Automotive grade (-DQZ) with Reel packaging. Other variants include the Commercial grade (-CQZ) and different packaging options like Tape & Reel or Cut Tape.

ADCs/DACs - Special Purpose Replacement Considerations

The CS4382A-CQZ is the commercial grade equivalent with a -40°C to +85°C operating range. The CS4382-KQZR is another variant within the same functional family. Verify temperature ratings and packaging requirements when substituting.