CS4223-KSZ Equivalent & Substitute Parts

Part Overview

The CS4223-KSZ is a 24-bit audio codec interface manufactured by Cirrus Logic Inc., designed for serial audio data processing with integrated analog-to-digital and digital-to-analog conversion. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The part operates across a 4.75V to 5.25V supply range and supports stereo audio applications in a compact 28-SSOP surface mount package.

Substiute Parts

CS4223-KSZ

Cirrus Logic Inc.In Stock: 1174CS4223-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 CS4223-KSZ is determined by the following critical parameters:

• 24-bit resolution requirement
• Dual ADC / DAC configuration (2 / 2)
• Serial data interface
• Sigma Delta conversion architecture
• Surface mount technology compatibility
• Operating temperature range (-10°C ~ 70°C)
• Supply voltage compatibility (4.75V ~ 5.25V minimum for both analog and digital rails)
• Package form factor and pin count (28-pin configuration)

The CS4271-CZZ qualifies as a manufacturer-recommended substitute based on matching these core functional and electrical parameters. While package geometry differs slightly (28-TSSOP vs. 28-SSOP), both maintain 28-pin configurations suitable for equivalent circuit board layouts with standard surface mount assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Both the CS4223-KSZ and CS4271-CZZ are classified as obsolete products. The CS4271-CZZ demonstrates improved performance specifications with higher dynamic range on the DAC channel (114 dB vs. 105 dB) and extended digital supply voltage range (3.1V ~ 5.25V vs. 4.75V ~ 5.25V). The CS4271-CZZ carries ROHS3 compliance certification, providing regulatory advantage for applications subject to environmental standards. Package geometry differences (SSOP vs. TSSOP) require PCB layout verification but do not prevent functional substitution given identical pin counts and surface mount technology.

Frequently Asked Questions (FAQ)

Q: Can the CS4271-CZZ directly replace the CS4223-KSZ in existing designs?

A: Functional substitution is supported based on matching 24-bit resolution, dual ADC/DAC configuration, serial interface, and operating temperature range. PCB layout modifications may be required due to package geometry differences between 28-SSOP and 28-TSSOP variants. Pin assignment verification against device datasheets is mandatory before implementation.

Q: What are the key differences between these parts?

A: The CS4271-CZZ provides superior dynamic range performance (108 dB ADC, 114 dB DAC vs. 105 dB for both on the CS4223-KSZ) and supports a lower digital supply voltage floor (3.1V vs. 4.75V). The CS4271-CZZ includes ROHS3 compliance. Both parts maintain identical resolution, channel configuration, and operating temperature specifications.

Q: Are there package compatibility concerns?

A: The CS4223-KSZ uses 28-SSOP packaging (0.209" width) while the CS4271-CZZ uses 28-TSSOP packaging (0.173" width). Both are 28-pin surface mount packages with identical pin counts. PCB footprint adjustment is necessary; standard surface mount assembly equipment accommodates both package types.

Q: What is the moisture sensitivity impact?

A: The CS4223-KSZ carries MSL 2 (1 Year shelf life), while the CS4271-CZZ carries MSL 3 (168 Hours shelf life). MSL 3 components require more stringent moisture control during storage and handling. This affects component procurement, storage protocols, and assembly scheduling.

Q: Are both parts compliant with environmental regulations?

A: Both parts maintain REACH Unaffected status. The CS4271-CZZ additionally carries ROHS3 compliance certification, providing regulatory advantage for applications subject to RoHS requirements. The CS4223-KSZ RoHS status is not specified in available documentation.