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The WM8955LSEFL/R is a stereo audio CODEC manufactured by Cirrus Logic Inc., housed in a 32-QFN (5x5 mm) package. It integrates two ADCs and two DACs with a sampling rate of 48 kHz and supports DSP, I2S, and DSP interfaces. The device operates on analog and digital supply voltages ranging from 1.71 V to 3.6 V. Designed for surface mount installation, it functions within a temperature range of -25°C to 85°C. This component is classified as a special-purpose data acquisition IC and is currently marked as obsolete.
This product is officially listed as obsolete by the manufacturer. Verification of availability should focus on distributor surplus stock or alternative packaging types rather than direct manufacturing orders. Check for PCN documentation regarding assembly site changes or label standardization updates before procurement.
Select this component only if compatibility with 48 kHz sampling rates and specific I2S/DSP interface protocols is required. Ensure the design accommodates the 1.71 V to 3.6 V supply voltage range and the thermal characteristics of the 32-QFN package. Consider that the part status is obsolete when planning long-term production cycles.
The WM8955 series belongs to Cirrus Logic's portfolio of specialized audio data converters. The suffix 'R' typically indicates reel packaging, while 'FL' denotes the lead-free QFN variant. This model serves as a bridge between analog audio signals and digital processors in compact form factors.
No public confirmed substitute part numbers are available in the provided documentation. Due to the obsolete status, engineers must evaluate pin-compatible alternatives or redesign for newer generation CODECs from the same manufacturer.