WM5102ECS/R Equivalent & Substitute Parts

Part Overview

The WM5102ECS/R is an audio codec interface IC manufactured by Cirrus Logic Inc., designed for audio processing applications requiring 24-bit resolution with integrated digital signal processing (DSP). This device features a SLIMbus data interface, 6 ADCs and 7 DACs, and operates across a wide temperature range suitable for consumer and industrial audio equipment.

The WM5102ECS/R is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product maintenance and manufacturing requirements.

Substiute Parts

WM5102ECS/R

Cirrus Logic Inc.In Stock: 20476WM5102ECS/R Datasheet

Current PartRFQ

CS47L15-CWZR

Cirrus Logic Inc.In Stock: 3897CS47L15-CWZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WM5102ECS/R is determined by the following critical parameters:

Resolution and Audio Processing Capability: The substitute part must maintain 24-bit resolution to preserve audio fidelity and signal integrity in the application.

ADC/DAC Configuration: The original device provides 6 ADCs and 7 DACs. Substitute parts must provide equivalent or greater channel capacity to support the same audio signal routing and processing requirements.

Data Interface Compatibility: The WM5102ECS/R uses SLIMbus protocol. Substitute parts may employ alternative serial interfaces (such as SPI) provided the application architecture supports interface protocol conversion or the substitute is compatible with the existing system design.

Supply Voltage Ranges: Analog supply voltage (1.7V ~ 1.9V) and digital supply voltage (1.7V ~ 3.47V) define the power delivery requirements. Substitute parts must operate within compatible voltage ranges to ensure proper biasing and signal conditioning.

Operating Temperature Range: The -40°C ~ 85°C operating range must be maintained or exceeded to ensure reliability across the intended deployment environment.

Package and Mounting: Surface mount WLCSP packages are required for compatibility with modern PCB assembly processes. Physical dimensions and pin configurations must be evaluated for mechanical fit.

Compliance and Status: RoHS compliance, REACH status, and product lifecycle status (obsolete) are critical for regulatory adherence and supply chain planning.

Parameter Comparison

Engineering Selection Recommendations

CS47L15-CWZR Substitution Considerations:

The CS47L15-CWZR is a Cirrus Logic audio codec that maintains 24-bit resolution and Sigma Delta architecture, ensuring audio processing capability equivalent to the WM5102ECS/R. Both devices operate across the -40°C ~ 85°C temperature range and feature MSL 1 moisture sensitivity classification.

Key Differences Requiring Design Evaluation:

The CS47L15-CWZR employs SPI data interface instead of SLIMbus, necessitating interface protocol adaptation in the application circuit. The substitute provides 3 ADCs and 3 DACs compared to the original 6 ADCs and 7 DACs, reducing channel capacity. This reduction is acceptable only if the application requires fewer audio channels than the original design.

The CS47L15-CWZR package is 70-WLCSP (3.01x4.61), smaller than the 137-WCSP (5.4x5.43) of the WM5102ECS/R. PCB layout modifications are required to accommodate the different footprint and pin configuration.

Digital supply voltage range for the CS47L15-CWZR is 1.14V ~ 1.26V, narrower than the WM5102ECS/R range of 1.7V ~ 3.47V. Power supply design must be adjusted to meet the tighter voltage specification.

Both devices are classified as obsolete and maintain RoHS and REACH compliance, supporting regulatory requirements for new designs and legacy product support.

Frequently Asked Questions (FAQ)

Q: Can the CS47L15-CWZR directly replace the WM5102ECS/R without circuit modifications?

A: No. The CS47L15-CWZR requires circuit modifications due to differences in data interface protocol (SPI vs. SLIMbus), ADC/DAC channel count (3/3 vs. 6/7), digital supply voltage range (1.14V ~ 1.26V vs. 1.7V ~ 3.47V), and package footprint (70-WLCSP vs. 137-WCSP). Design review and PCB layout changes are necessary.

Q: What is the primary limitation of using CS47L15-CWZR as a substitute?

A: The reduced ADC/DAC channel count (3/3 versus 6/7) limits the number of audio input and output channels. This substitution is viable only for applications requiring three or fewer audio channels. Applications requiring the full channel capacity of the original device cannot use this substitute without significant architectural redesign.

Q: Are both devices compliant with current regulatory standards?

A: Both the WM5102ECS/R and CS47L15-CWZR are RoHS compliant and REACH unaffected. The CS47L15-CWZR carries ROHS3 compliance, meeting the most current RoHS directive requirements. Both devices feature MSL 1 moisture sensitivity, indicating unlimited shelf life under controlled storage conditions.

Q: What are the package considerations for substitution?

A: The WM5102ECS/R uses a 137-WCSP package (5.4x5.43 mm), while the CS47L15-CWZR uses a 70-WLCSP package (3.01x4.61 mm). The substitute has a smaller footprint, requiring PCB redesign. Pin assignments and signal routing must be re-evaluated to ensure proper electrical connections and signal integrity.

Q: How do the supply voltage requirements differ between these devices?

A: Analog supply voltage ranges are similar (1.7V ~ 1.9V vs. 1.71V ~ 1.89V). Digital supply voltage differs significantly: the WM5102ECS/R accepts 1.7V ~ 3.47V, while the CS47L15-CWZR requires 1.14V ~ 1.26V. Power supply circuits must be redesigned to meet the narrower specification of the substitute part.

Q: What is the significance of the SLIMbus to SPI interface change?

A: SLIMbus and SPI are distinct serial communication protocols. The WM5102ECS/R uses SLIMbus for audio data transport, while the CS47L15-CWZR uses SPI. The application must support SPI protocol or include interface conversion circuitry. Firmware or software modifications may be required to handle the different protocol timing and data formatting.