CS4391A-KZZ

ADCs/DACs - Special Purpose Overview

The CS4391A-KZZ is a stereo digital-to-analog converter (DAC) manufactured by Cirrus Logic. It integrates digital interpolation, fourth-order delta-sigma D/A conversion, digital de-emphasis, volume control, channel mixing, and analog output filtering. The device supports PCM data rates from 2 kHz to 192 kHz and DSD audio formats. Key electrical specifications include a dynamic range of 108 dB and THD+N of 94 dB. It operates on a +5 V power supply with low clock jitter sensitivity and features soft-ramp volume control with -119 dB attenuation in 1 dB steps.

ADCs/DACs - Special Purpose Feature Summary

• Complete stereo DAC system with integrated interpolation, D/A conversion, and analog filtering
• Supports sample rates up to 192 kHz for PCM and Direct Stream Digital (DSD) modes
• On-chip digital de-emphasis for 32, 44.1, and 48 kHz sampling frequencies
• Volume control with soft ramp transitions to eliminate zero-crossing clicks

ADCs/DACs - Special Purpose Applications

• DVD players
• Audio/Video receivers
• CD players
• Set-top box systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type matches the required form factor, as the CS4391 series includes both SOIC and TSSOP variants. Confirm that the specific suffix 'KZZ' corresponds to the lead-free, 20-pin TSSOP version intended for the application. Cross-reference the manufacturer's current documentation to ensure component availability and compliance status.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a high-performance stereo DAC with integrated volume control and analog filtering is required. It is suitable for designs needing support for high-resolution audio formats up to 192 kHz. Ensure the system logic levels are compatible with the serial input interface and that the +5 V supply voltage aligns with the power budget.

ADCs/DACs - Special Purpose Part Context

The CS4391A-KZZ belongs to the CS4391 family of complete stereo DAC systems. This family is designed to simplify audio system design by integrating multiple functions typically requiring separate components. The KZZ suffix specifically denotes the 20-pin TSSOP package variant, distinguishing it from other package options like the SOIC or standard TSSOP versions within the same product line.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements within the same family include the CS4391-KZ and CS4391-KZZ. Verify pin compatibility and package dimensions before substitution. Other Cirrus Logic DACs may require significant circuit redesign due to differences in interface protocols or power requirements.