CS7250B-CAZR

Overview

The CS7250B-CAZR is a high-performance digital MEMS microphone manufactured by Cirrus Logic. It features a PDM digital output and omnidirectional sound pickup. The device operates within a voltage range of 1.62 V to 1.98 V, with a rated supply voltage of 1.8 V. It draws a typical supply current of 650 µA. The frequency response spans from 35 Hz to 13 kHz. Key acoustic metrics include a signal-to-noise ratio (SNR) of 66 dB and a sensitivity of -36 dB. The component measures 3.50 mm x 2.65 mm in size with a height of 0.98 mm.

Feature Summary

• Delivers class-leading total harmonic distortion performance for superior audio quality.
• Integrates low power modes to significantly reduce microphone power consumption.
• Provides excellent signal-to-noise ratio for clear and accurate audio capture.

Applications

• Smartphones and mobile devices requiring high-fidelity voice recording.
• Voice-controlled assistants and smart home speakers.
• Portable audio recording equipment.

Procurement Notes

Verify the obsolete status of this specific part number before initiating procurement processes. Confirm compatibility with existing PCB footprints and design-in requirements. Ensure that alternative sourcing channels provide genuine components with valid traceability documentation. Check for updated replacement recommendations from the manufacturer if available.

Selection Notes

Select this component when high acoustic performance and low power consumption are critical. The digital PDM interface simplifies system integration by eliminating analog noise susceptibility. Consider the physical dimensions and operating voltage range to ensure alignment with target device constraints. Evaluate the frequency response range against specific application audio requirements.

Part Context

The CS7250B belongs to Cirrus Logic's series of digital MEMS microphones designed for mobile and portable electronics. This series emphasizes the combination of industry-leading audio performance with energy efficiency. The CAZR suffix typically denotes specific packaging or tape-and-reel configuration details consistent with the manufacturer's standard coding practices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Due to the obsolete status indicated in distributor listings, consult official Cirrus Logic documentation for current recommended replacements or next-generation equivalents.