WM8988LGECN/V Equivalent & Substitute Parts

Part Overview

The WM8988LGECN/V is a stereo audio codec interface manufactured by Cirrus Logic Inc., designed for stereo audio applications with 24-bit resolution and integrated headphone driver functionality. This component operates as a dual-channel audio interface with 2 ADCs and 2 DACs, utilizing Sigma Delta modulation technology.

The WM8988LGECN/V carries an Obsolete product status. 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 audio codec architecture.

Substiute Parts

WM8988LGECN/V

Cirrus Logic Inc.In Stock: 1010WM8988LGECN/V Datasheet

Current PartRFQ

WM8904CGEFL/V

Cirrus Logic Inc.In Stock: 3591WM8904CGEFL/V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WM8988LGECN/V is determined by the following critical parameters:

• Audio Interface Type: Stereo audio codec with integrated functionality
• Resolution: 24-bit digital audio processing
• Channel Configuration: 2 ADCs and 2 DACs (dual-channel stereo)
• Modulation Technology: Sigma Delta architecture
• Mounting Technology: Surface mount QFN package
• Supply Voltage Compatibility: Overlapping analog and digital supply voltage ranges
• Operating Temperature Range: Compatibility within specified thermal envelope
• Regulatory Compliance: RoHS and REACH compliance status

The WM8904CGEFL/V qualifies as a substitute based on matching core audio interface specifications, identical resolution and channel configuration, compatible supply voltage ranges, and equivalent regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The WM8904CGEFL/V is the manufacturer-recommended substitute for the obsolete WM8988LGECN/V. Both components are manufactured by Cirrus Logic Inc. and share identical core audio interface specifications: 24-bit resolution, dual-channel stereo configuration (2 ADCs / 2 DACs), and Sigma Delta modulation architecture.

Key considerations for substitution:

Product Status: The WM8904CGEFL/V maintains Active product status, ensuring ongoing availability and manufacturer support, whereas the WM8988LGECN/V is Obsolete.

Regulatory Compliance: Both parts meet RoHS compliance requirements. The WM8904CGEFL/V carries ROHS3 certification, representing current regulatory standards.

Supply Voltage: The WM8904CGEFL/V analog supply range (1.71V ~ 2V) is narrower than the WM8988LGECN/V (1.8V ~ 3.6V). Digital supply voltage ranges are identical (1.42V ~ 3.6V). Design implementations must confirm analog supply voltage compatibility within the WM8904CGEFL/V operating envelope.

Operating Temperature: The WM8904CGEFL/V extends the lower operating temperature limit to -40°C, compared to -25°C for the WM8988LGECN/V, providing broader thermal operating capability.

Package Differences: The WM8988LGECN/V uses a 28-UFQFN package, while the WM8904CGEFL/V uses a 32-WFQFN package with exposed pad. PCB layout modifications are required to accommodate the different pin count and package geometry.

Audio Performance: Signal-to-noise ratios differ slightly. The WM8988LGECN/V achieves 93 dB (ADC) / 100 dB (DAC), while the WM8904CGEFL/V achieves 91 dB (ADC) / 96 dB (DAC). Both specifications support professional audio applications.

Frequently Asked Questions (FAQ)

Q: Can the WM8904CGEFL/V directly replace the WM8988LGECN/V without PCB modifications?

A: No. The WM8904CGEFL/V uses a 32-pin QFN package compared to the 28-pin QFN of the WM8988LGECN/V. PCB layout redesign is required to accommodate the different pin configuration and package footprint.

Q: Are the supply voltage requirements compatible between these parts?

A: The digital supply voltage ranges are identical (1.42V ~ 3.6V). However, the analog supply voltage range differs. The WM8904CGEFL/V requires 1.71V ~ 2V, which is narrower than the WM8988LGECN/V range of 1.8V ~ 3.6V. Verify that your design's analog supply voltage operates within the 1.71V ~ 2V window for the substitute part.

Q: What is the difference in audio quality between these codecs?

A: Both parts deliver 24-bit stereo audio with Sigma Delta modulation. The WM8988LGECN/V achieves slightly higher signal-to-noise ratios (93 dB ADC / 100 dB DAC) compared to the WM8904CGEFL/V (91 dB ADC / 96 dB DAC). The difference is 2 dB for ADC and 4 dB for DAC, which is within acceptable margins for most audio applications.

Q: Why is the WM8988LGECN/V marked as Obsolete?

A: The WM8988LGECN/V has reached end-of-life status. Cirrus Logic Inc. has transitioned to the WM8904CGEFL/V as the active replacement, which offers improved specifications and current regulatory compliance.

Q: Are both parts RoHS compliant?

A: Yes. The WM8988LGECN/V is RoHS Compliant. The WM8904CGEFL/V carries ROHS3 Compliant certification, representing the current RoHS standard. Both parts are REACH Unaffected.

Q: What is the moisture sensitivity level for these components?

A: Both the WM8988LGECN/V and WM8904CGEFL/V carry MSL 3 (168 Hours) rating, indicating identical moisture handling and storage requirements.

Q: Does the WM8904CGEFL/V support a wider operating temperature range?

A: Yes. The WM8904CGEFL/V operates from -40°C to 85°C, extending the lower temperature limit by 15°C compared to the WM8988LGECN/V (-25°C to 85°C). This provides broader thermal capability for applications requiring extended low-temperature operation.