CS4272-DZZ Equivalent & Substitute Parts

Part Overview

The CS4272-DZZ is a stereo audio interface codec manufactured by Cirrus Logic Inc., designed for 24-bit serial audio applications with 114 dB dynamic range. This component integrates two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs) using sigma-delta modulation technology. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

CS4272-DZZ

Cirrus Logic Inc.In Stock: 2273CS4272-DZZ Datasheet

Current PartRFQ

CS4272K-DZZ

Cirrus Logic Inc.In Stock: 1020CS4272K-DZZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the CS4272-DZZ is determined by the following critical parameters:

• Resolution and Converter Configuration: 24-bit resolution with 2 ADCs and 2 DACs
• Dynamic Range Performance: 114 dB typical for both ADCs and DACs
• Data Interface Type: Serial interface requirement
• Sigma-Delta Architecture: Required for audio codec functionality
• Supply Voltage Ranges: Analog supply 4.75V ~ 5.25V; Digital supply 3.1V ~ 5.25V
• Package and Mounting: 28-TSSOP surface mount package with identical physical dimensions
• Environmental and Compliance: Operating temperature -40°C ~ 85°C, MSL 3, ROHS3 Compliant, REACH Unaffected

The CS4272K-DZZ meets all these substitution criteria and is identified as the manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CS4272K-DZZ is the appropriate substitute for the obsolete CS4272-DZZ. Both components share identical electrical specifications, package geometry, and compliance certifications. The CS4272K-DZZ maintains active product status with Cirrus Logic Inc., ensuring continued availability and technical support. The transition from CS4272-DZZ to CS4272K-DZZ requires no circuit modifications, as all critical parameters—supply voltages, resolution, converter configuration, dynamic range, and thermal operating range—are equivalent. Both components satisfy ROHS3 and REACH compliance requirements, making the substitution suitable for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the CS4272K-DZZ directly replace the CS4272-DZZ without PCB modifications?

A: Yes. Both parts share identical electrical specifications, supply voltage requirements, and 28-TSSOP package dimensions. No circuit redesign is necessary.

Q: What is the primary difference between these two parts?

A: The CS4272-DZZ is obsolete, while the CS4272K-DZZ maintains active product status. The CS4272K-DZZ also specifies support for 192 kHz sampling rates in its description, though both parts maintain the same 24-bit resolution and 114 dB dynamic range.

Q: Are the pin configurations identical?

A: Yes. Both components use the 28-TSSOP package with identical pinout and physical dimensions (0.173" width, 4.40mm).

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the CS4272-DZZ and CS4272K-DZZ are ROHS3 Compliant, REACH Unaffected, with MSL 3 (168 Hours) moisture sensitivity rating and -40°C ~ 85°C operating temperature range.

Q: Which part should be selected for new designs?

A: The CS4272K-DZZ should be selected for new designs due to its active product status and continued manufacturer support.