WM8580AGEFT/V Equivalent & Substitute Parts

Part Overview

The WM8580AGEFT/V is a stereo audio interface codec manufactured by Cirrus Logic Inc., designed for 24-bit serial audio applications in a 48-TQFP surface mount package. This component integrates one ADC and three DACs with Sigma Delta modulation, delivering 100 dB S/N ratio and dynamic range for audio processing applications.

The WM8580AGEFT/V is classified as obsolete. Due to its discontinued status and limited remaining inventory, identifying functionally equivalent substitute components is necessary for ongoing system design, maintenance, and production continuity.

Substiute Parts

WM8580AGEFT/V

Cirrus Logic Inc.In Stock: 860WM8580AGEFT/V Datasheet

Current PartRFQ

CS42528-CQZ

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WM8580AGEFT/V is determined by the following critical parameters:

Core Functional Requirements:

• Serial data interface for audio codec applications
• 24-bit resolution capability
• Sigma Delta modulation architecture
• Minimum audio performance specifications (S/N ratio and dynamic range)

Electrical Compatibility Constraints:

• Supply voltage ranges must accommodate system power distribution
• Operating temperature range must meet application requirements
• ADC/DAC channel configuration must support the intended audio signal path

Physical & Manufacturing Constraints:

• Surface mount package compatibility with PCB layout
• RoHS and REACH compliance for regulatory requirements
• Moisture sensitivity level (MSL) for storage and handling

The CS42528-CQZ is identified as a manufacturer-recommended substitute. While it differs in package type (64-LQFP vs. 48-TQFP), channel configuration (2 ADCs / 8 DACs vs. 1 ADC / 3 DACs), and supply voltage specifications, it maintains core functional equivalence through serial audio interface architecture, 24-bit resolution, Sigma Delta processing, and superior dynamic range performance (114 dB).

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The CS42528-CQZ is a manufacturer-recommended substitute for the WM8580AGEFT/V. Both components are classified as obsolete products from Cirrus Logic Inc., indicating end-of-life status across the product line.

Compliance Considerations:

Both parts maintain regulatory compliance: WM8580AGEFT/V is RoHS Compliant, while CS42528-CQZ is ROHS3 Compliant. Both are REACH Unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001.

Design Integration Factors:

Substitution requires PCB layout modification due to package change from 48-TQFP (7x7) to 64-LQFP (10x10). The CS42528-CQZ provides expanded channel capacity (2 ADCs / 8 DACs vs. 1 ADC / 3 DACs) and improved dynamic range performance (114 dB vs. 100-103 dB). However, the operating temperature range is narrower (-10°C ~ 70°C vs. -40°C ~ 85°C), and analog supply voltage is restricted to 4.75V ~ 5.25V, requiring power supply design review.

Inventory & Availability:

CS42528-CQZ inventory (4,970 pcs) significantly exceeds WM8580AGEFT/V availability (780 pcs), supporting long-term production continuity.

Frequently Asked Questions (FAQ)

Q: Can the CS42528-CQZ directly replace the WM8580AGEFT/V without PCB modifications?

A: No. The CS42528-CQZ uses a 64-LQFP (10x10) package compared to the WM8580AGEFT/V's 48-TQFP (7x7) package. PCB layout redesign is required, including footprint changes, trace routing, and pin assignment verification.

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

A: The CS42528-CQZ has a narrower operating temperature range (-10°C ~ 70°C vs. -40°C ~ 85°C) and restricted analog supply voltage (4.75V ~ 5.25V vs. 2.7V ~ 5.5V). Digital supply voltage range is broader on the CS42528-CQZ (3.13V ~ 5.25V vs. 2.7V ~ 3.6V). These differences require power supply and thermal design review.

Q: Why does the CS42528-CQZ have more ADCs and DACs?

A: The CS42528-CQZ is designed for general-purpose interface applications with expanded channel capacity (2 ADCs / 8 DACs). The WM8580AGEFT/V is optimized for stereo audio with 1 ADC / 3 DACs. Applications requiring fewer channels can operate the CS42528-CQZ with unused channels disabled or left unconnected.

Q: Are both parts still in production?

A: No. Both the WM8580AGEFT/V and CS42528-CQZ are classified as obsolete. Substitution should be considered part of a long-term component strategy, as both parts face eventual inventory depletion.

Q: What is the significance of the different RoHS classifications?

A: WM8580AGEFT/V is RoHS Compliant (original directive), while CS42528-CQZ is ROHS3 Compliant (current directive). ROHS3 represents the updated regulatory standard. Both meet current environmental compliance requirements for EU and similar markets.

Q: How do the dynamic range specifications compare?

A: The CS42528-CQZ provides superior dynamic range (114 dB for both ADC and DAC) compared to the WM8580AGEFT/V (100 dB ADC / 103 dB DAC). This represents improved audio fidelity and signal-to-noise performance in the substitute part.