CS42528-CQZR Equivalent & Substitute Parts

Part Overview

The CS42528-CQZR is a general purpose audio interface codec manufactured by Cirrus Logic Inc., designed for S/PDIF receiver applications with 24-bit serial data interface capability. This component integrates 2 ADCs and 8 DACs with Sigma Delta modulation architecture, delivering 114 dB dynamic range across both conversion channels.

The CS42528-CQZR is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this codec architecture.

Substiute Parts

CS42528-CQZR

Cirrus Logic Inc.In Stock: 4943CS42528-CQZR Datasheet

Current PartRFQ

CS42528K-CQZR

Cirrus Logic Inc.In Stock: 1888CS42528K-CQZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS42528-CQZR is determined by strict equivalence across the following critical parameters:

• Data Interface: Serial
• Resolution: 24 bits
• ADC / DAC Configuration: 2 / 8
• Dynamic Range: 114 dB (both ADCs and DACs)
• Analog Supply Voltage Range: 4.75V ~ 5.25V
• Digital Supply Voltage Range: 3.13V ~ 5.25V
• Operating Temperature Range: -10°C ~ 70°C
• Package / Case: 64-LQFP
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

The CS42528K-CQZR meets all substitution criteria and is classified as an active product, providing supply continuity for the obsolete CS42528-CQZR.

Parameter Comparison

Engineering Selection Recommendations

The CS42528K-CQZR is the direct substitute for the obsolete CS42528-CQZR. Both components share identical electrical specifications, package geometry, and compliance certifications. The primary distinction is product status: CS42528K-CQZR is actively manufactured and supported, while CS42528-CQZR is obsolete.

For new designs or production continuity, CS42528K-CQZR is the appropriate selection. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring compatibility with existing PCB assembly and storage protocols. The active status of CS42528K-CQZR provides assured supply availability and manufacturer technical support.

Frequently Asked Questions (FAQ)

Q: Can CS42528K-CQZR replace CS42528-CQZR in existing designs?

A: Yes. Both components are electrically and mechanically equivalent. All critical parameters—resolution, ADC/DAC configuration, dynamic range, supply voltages, operating temperature range, package type, and compliance certifications—are identical. Direct substitution is supported without design modification.

Q: What is the difference between CS42528-CQZR and CS42528K-CQZR?

A: The components are functionally equivalent. The primary difference is product lifecycle status: CS42528-CQZR is obsolete, while CS42528K-CQZR is active. CS42528K-CQZR offers ongoing manufacturer support and supply availability.

Q: Are there packaging differences between these parts?

A: Both components use 64-LQFP surface mount packages. CS42528-CQZR is supplied in standard packaging, while CS42528K-CQZR is available in Tape & Reel (TR) format. The physical package dimensions and pin configuration are identical, ensuring PCB compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CS42528-CQZR and CS42528K-CQZR are ROHS3 compliant and REACH unaffected. Both carry Moisture Sensitivity Level 3 (168 Hours) ratings. Compliance certifications are equivalent.

Q: What is the operating temperature range for these codecs?

A: Both components operate across -10°C to 70°C. This range applies to both the main part and its substitute.