WM8998ECS/R Equivalent & Substitute Parts

Part Overview

The WM8998ECS/R is a high-fidelity audio codec interface manufactured by Cirrus Logic Inc., designed for advanced audio hub applications with SLIMbus connectivity. This component integrates 3 ADCs and 7 DACs with signal-to-noise ratios of 96 dB (ADCs) and 122 dB (DACs), supporting dual analog and digital power supplies. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs and long-term product support.

Substiute Parts

WM8998ECS/R

Cirrus Logic Inc.In Stock: 2109WM8998ECS/R Datasheet

Current PartRFQ

CS47L35-CWZR

Cirrus Logic Inc.In Stock: 10169CS47L35-CWZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WM8998ECS/R is determined by the following critical parameters:

• Audio codec functionality with integrated ADC and DAC channels
• SLIMbus digital interface compatibility
• Dual-supply voltage architecture (separate analog and digital rails)
• Operating temperature range of -40°C to 85°C
• Surface mount WLCSP packaging technology
• ROHS3 compliance and MSL Level 1 rating

The CS47L35-CWZR qualifies as a manufacturer-recommended substitute based on shared audio codec architecture, SLIMbus interface support, compatible operating temperature range, surface mount WLCSP packaging, and identical compliance certifications. Both parts are manufactured by Cirrus Logic Inc. and support the same regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

The CS47L35-CWZR is the manufacturer-recommended substitute for the WM8998ECS/R. Both components maintain identical operating temperature specifications (-40°C to 85°C), identical compliance certifications (ROHS3, REACH Unaffected, EAR99), and identical moisture sensitivity ratings (MSL Level 1). Both utilize surface mount WLCSP packaging technology and share the same HTSUS classification.

The CS47L35-CWZR offers the advantage of Active product status, ensuring continued availability and manufacturing support, whereas the WM8998ECS/R is in Last Time Buy status. The CS47L35-CWZR provides expanded interface options (I2C and SPI in addition to SLIMbus), which may offer additional design flexibility for new implementations.

Frequently Asked Questions (FAQ)

Q: Can the CS47L35-CWZR directly replace the WM8998ECS/R in existing designs?

A: The CS47L35-CWZR shares the same SLIMbus interface, operating temperature range, and compliance certifications as the WM8998ECS/R. Both components use surface mount WLCSP packaging. However, the package footprints differ (117-WCSP versus 101-WLCSP), requiring PCB layout modifications. Design validation is necessary to confirm functional compatibility with your specific application requirements.

Q: What is the difference in package size between these two parts?

A: The WM8998ECS/R uses a 117-WCSP package measuring 5.35x4.09 mm, while the CS47L35-CWZR uses a 101-WLCSP package measuring 4.56x3.65 mm. The CS47L35-CWZR has a smaller footprint, which may impact PCB layout and routing considerations.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the WM8998ECS/R and CS47L35-CWZR are ROHS3 compliant, REACH unaffected, classified as EAR99, and share the same HTSUS code (8542.39.0001). Both maintain MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: Why is the WM8998ECS/R in Last Time Buy status?

A: Last Time Buy status indicates that the manufacturer has discontinued production planning for this component. The CS47L35-CWZR, with Active product status, represents the current generation audio codec solution from Cirrus Logic Inc. and is recommended for new designs requiring long-term supply assurance.

Q: What additional interfaces does the CS47L35-CWZR provide?

A: The CS47L35-CWZR supports I2C and SPI interfaces in addition to SLIMbus, providing expanded connectivity options compared to the WM8998ECS/R, which supports SLIMbus only.