CS4221-KS

Codecs Overview

The CS4221-KS is a high-performance, 24-bit stereo audio codec manufactured by Cirrus Logic. It integrates stereo analog-to-digital and digital-to-analog converters utilizing delta-sigma conversion techniques. The device operates from a single +5 V power supply with a 3-5 V digital interface. Key electrical specifications include 100 dB dynamic range for both A/D and D/A converters, and a DAC signal-to-noise ratio of 105 dB (EIAJ). It features selectable de-emphasis filters for 32, 44.1, and 48 kHz sample rates, differential inputs/outputs, and an on-chip crystal oscillator.

Codecs Feature Summary

• Integrates stereo ADC and DAC channels with delta-sigma conversion technology
• Includes analog volume control capable of significant attenuation
• Features selectable de-emphasis filters for standard audio sample rates
• Supports both master and slave operational modes

Codecs Applications

• High-fidelity audio systems requiring low power consumption
• Professional audio equipment utilizing differential signal paths
• Digital audio interfaces supporting 3V logic levels

Codecs Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and specific package markings against official datasheets before integration. Check for end-of-life notifications or alternative sourcing options as this component may be discontinued.

Codecs Selection Notes

Select the CS4221-KS when a 24-bit resolution and high dynamic range are required for stereo audio processing. Ensure the system design accommodates a single +5 V analog supply and compatible digital voltage levels. Consider the integrated volume control feature if external attenuation circuitry is undesirable.

Codecs Part Context

The CS4221-KS belongs to the CS4220/CS4221 family of audio codecs. It shares core architecture with the CS4220 but adds analog volume control capabilities. Both devices utilize similar delta-sigma conversion methods and operate under comparable power supply conditions within the consumer and professional audio IC market segment.

Codecs Replacement Considerations

The CS4220 is a functional variant within the same family lacking volume control. Verify pin compatibility and software configuration differences when substituting. No other direct cross-model replacements are confirmed in available documentation.