Cirrus Logic, Inc. Miniature Bottom Port Analog MEMS Microphone CS7331

Description
The CS7331 is a low-profile silicon analog microphone offering high Signal-to-Noise Ratio (SNR) and low power consumption. The device incorporates Cirrus Logic’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The compact integration of transducer and internal circuitry on a single die enables implementation with an extremely small package. The CS7331 offers tight tolerance on the microphone sensitivity, giving reduced variation between parts and removing the need for in-line production calibration of part-to-part microphone variations. Features High SNR (63 dB) Low variation in sensitivity ±1 dB tolerance Low current consumption (55µA) Analog output Bottom Port LGA package 2.5mm x 1.6mm x 0.9mm package size 1.6 to 3.6 V supply
Datasheet
Description
The CS7331 is a low-profile silicon analog microphone offering high Signal-to-Noise Ratio (SNR) and low power consumption. The device incorporates Cirrus Logic’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The compact integration of transducer and internal circuitry on a single die enables implementation with an extremely small package. The CS7331 offers tight tolerance on the microphone sensitivity, giving reduced variation between parts and removing the need for in-line production calibration of part-to-part microphone variations. Features High SNR (63 dB) Low variation in sensitivity ±1 dB tolerance Low current consumption (55µA) Analog output Bottom Port LGA package 2.5mm x 1.6mm x 0.9mm package size 1.6 to 3.6 V supply
Datasheet

Suppliers

Company
Product
Description
Supplier Links
Miniature Bottom Port Analog MEMS Microphone - CS7331 - Cirrus Logic, Inc.
Austin, TX, USA
Miniature Bottom Port Analog MEMS Microphone
CS7331
Miniature Bottom Port Analog MEMS Microphone CS7331
The CS7331 is a low-profile silicon analog microphone offering high Signal-to-Noise Ratio (SNR) and low power consumption. The device incorporates Cirrus Logic’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The compact integration of transducer and internal circuitry on a single die enables implementation with an extremely small package. The CS7331 offers tight tolerance on the microphone sensitivity, giving reduced variation between parts and removing the need for in-line production calibration of part-to-part microphone variations. Features High SNR (63 dB) Low variation in sensitivity ±1 dB tolerance Low current consumption (55µA) Analog output Bottom Port LGA package 2.5mm x 1.6mm x 0.9mm package size 1.6 to 3.6 V supply

The CS7331 is a low-profile silicon analog microphone offering high Signal-to-Noise Ratio (SNR) and low power consumption. The device incorporates Cirrus Logic’s proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package. The compact integration of transducer and internal circuitry on a single die enables implementation with an extremely small package. The CS7331 offers tight tolerance on the microphone sensitivity, giving reduced variation between parts and removing the need for in-line production calibration of part-to-part microphone variations.

Features

  • High SNR (63 dB)
  • Low variation in sensitivity
    • ±1 dB tolerance
  • Low current consumption (55µA)
  • Analog output
  • Bottom Port LGA package
  • 2.5mm x 1.6mm x 0.9mm package size
  • 1.6 to 3.6 V supply
Supplier's Site Datasheet

Technical Specifications

  Cirrus Logic, Inc.
Product Category Audio Microphones
Product Number CS7331
Product Name Miniature Bottom Port Analog MEMS Microphone
Directivity Omnidirectional
Frequency Response 85 to 15000 Hz
Dynamic Range 93 dB re 20µPa
Thickness / Height 0.0354 inch (0.9000 mm)
Sensitivity -38 mV/Pa (-261997 mV/psi)
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