CS42528-CQZ Equivalent & Substitute Parts

Part Overview

The CS42528-CQZ is a general purpose audio interface IC 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, delivering 114 dB dynamic range across both conversion paths. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CS42528-CQZ

Cirrus Logic Inc.In Stock: 5063CS42528-CQZ Datasheet

Current PartRFQ

CS42528K-CQZ

Cirrus Logic Inc.In Stock: 1375CS42528K-CQZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Package / Case: 64-LQFP (10x10) form factor for direct PCB compatibility
• Resolution (Bits): 24-bit serial data interface
• Number of ADCs / DACs: 2 ADC channels and 8 DAC channels
• Data Interface: Serial protocol compatibility
• Dynamic Range: 114 dB specification for both ADC and DAC paths
• Voltage Supply Ranges: Analog (4.75V ~ 5.25V) and Digital (3.13V ~ 5.25V)
• Operating Temperature: -10°C ~ 70°C range
• RoHS and MSL Compliance: ROHS3 Compliant, MSL 3 (168 Hours)

The CS42528K-CQZ meets all substitution criteria as a direct functional equivalent, with identical electrical specifications and package configuration. The primary distinction is product status: CS42528K-CQZ is active production, whereas CS42528-CQZ is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The CS42528K-CQZ is the direct substitute for CS42528-CQZ. Both components share identical electrical specifications, package configuration, and compliance certifications. The CS42528K-CQZ maintains active production status with Cirrus Logic Inc., ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and carry identical MSL ratings, supporting equivalent handling and storage requirements in manufacturing environments.

For applications currently specified with CS42528-CQZ, transition to CS42528K-CQZ requires no circuit modifications, as all electrical parameters, pin configurations, and functional characteristics remain unchanged. The substitution is direct and pin-for-pin compatible.

Frequently Asked Questions (FAQ)

Q: Can CS42528K-CQZ be used as a direct replacement for CS42528-CQZ?

A: Yes. The CS42528K-CQZ is a direct substitute with identical electrical specifications, package configuration, and pin assignments. No circuit modifications are required.

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

A: The CS42528-CQZ is obsolete, while CS42528K-CQZ is in active production. All functional and electrical parameters are equivalent.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 64-LQFP (10x10) package with identical footprint and pin spacing, ensuring direct PCB compatibility.

Q: Do both parts have the same supply voltage requirements?

A: Yes. Both require analog supply of 4.75V ~ 5.25V and digital supply of 3.13V ~ 5.25V, with identical operating temperature range of -10°C ~ 70°C.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant with MSL 3 (168 Hours) rating, supporting equivalent manufacturing and storage protocols.

Q: What is the ADC/DAC configuration for both parts?

A: Both parts integrate 2 ADC channels and 8 DAC channels with 24-bit resolution and 114 dB dynamic range across both conversion paths.