CS4224-KSZ Equivalent & Substitute Parts

Part Overview

The CS4224-KSZ is a 24-bit audio codec interface manufactured by Cirrus Logic Inc., designed for serial audio data processing applications. This component features dual ADC/DAC channels with Sigma Delta modulation and operates across 5V supply rails. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

CS4224-KSZ

Cirrus Logic Inc.In Stock: 1829CS4224-KSZ Datasheet

Current PartRFQ

CS4271-CZZ

Cirrus Logic Inc.In Stock: 5055CS4271-CZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS4224-KSZ is determined by the following critical parameters:

• Resolution and Channel Configuration: 24-bit resolution with 2 ADC and 2 DAC channels
• Data Interface Type: Serial interface requirement
• Sigma Delta Architecture: Required for audio processing
• Supply Voltage Compatibility: Analog and digital supply ranges
• Operating Temperature Range: -10°C to 70°C
• Package Type: Surface mount configuration with pin-compatible or functionally equivalent packaging
• Moisture Sensitivity: MSL 3 classification

The CS4271-CZZ meets these substitution criteria through equivalent resolution, channel count, serial interface, Sigma Delta implementation, and compatible operating temperature range. Package differences (28-TSSOP vs. 28-SSOP) require PCB layout verification for pin compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CS4271-CZZ serves as the primary substitute for the CS4224-KSZ based on functional equivalence in core audio processing parameters. Both components share identical resolution, channel configuration, serial interface architecture, and operating temperature specifications. The CS4271-CZZ provides improved dynamic range performance in DAC output (114 dB vs. 105 dB) and extended digital supply voltage flexibility (3.1V minimum vs. 4.75V minimum).

Both parts carry obsolete product status. The CS4271-CZZ holds ROHS3 compliance certification, whereas the CS4224-KSZ compliance status is not specified. Package geometry differs between the two variants (28-SSOP vs. 28-TSSOP), requiring footprint verification during PCB layout migration. Both components maintain identical moisture sensitivity classification and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the CS4271-CZZ directly replace the CS4224-KSZ without PCB modifications?

A: Functional substitution is supported through equivalent audio processing specifications. However, package geometry differs (28-SSOP vs. 28-TSSOP), requiring PCB footprint verification. Pin assignment compatibility must be confirmed against device datasheets before implementation.

Q: What are the key differences in electrical performance between these parts?

A: The CS4271-CZZ provides superior dynamic range in DAC output (114 dB vs. 105 dB) and ADC input (108 dB vs. 105 dB). Digital supply voltage range is extended on the CS4271-CZZ (3.1V minimum vs. 4.75V minimum), offering greater design flexibility for mixed-voltage systems.

Q: Are both parts suitable for new designs?

A: Both components carry obsolete product status. Component selection for new designs should consider long-term availability and supply chain implications. Current inventory levels are documented as 1760 units for CS4224-KSZ and 4976 units for CS4271-CZZ.

Q: What packaging considerations apply to substitution?

A: The CS4224-KSZ uses 28-SSOP packaging (5.30mm width), while the CS4271-CZZ uses 28-TSSOP packaging (4.40mm width). Both are surface mount configurations with 28-pin counts. PCB layout and reflow profile compatibility must be evaluated for each package variant.

Q: Do both parts meet the same compliance standards?

A: Both components are REACH unaffected and carry EAR99 ECCN classification. The CS4271-CZZ is ROHS3 compliant. Moisture sensitivity level is identical (MSL 3, 168 hours) for both parts.