Copyright

 Cirrus Logic, Inc. 2016–2017

(All Rights Reserved)

http://www.cirrus.com

DS1165F1

MAR '17

Miniature Bottom Port Analog MEMS Microphone

Features

• High acoustic overload point (AOP, 124-dB SPL)

• High signal-to-noise ratio (63-dB SNR)

• Low variation in sensitivity (±1 dB)

• Low current consumption (55

A)

• Analog output

• Bottom-port LGA package

• 1.6- to 3.6-V supply

Description

The CS7331P is a low-profile analog MEMS microphone. It

offers miniature dimensions and low-current consumption,

making it ideal for always-on, always-listening use in

space-constrained applications.

CMOS/MEMS membrane technology, offering high

reliability and high performance. The CS7331P is designed

to withstand the high temperatures associated with

automated flow solder assembly processes.

The CS7331P is ideally suited to the Cirrus Logic

SoundClear™ suite of audio processing algorithms,

including speech recognition, voice trigger, and noise

cancelation.

The CS7331P is available in a 2.5 × 1.6 × 0.9-mm,

bottom-port LGA package, with a 0.25-mm port diameter. It

is ideal for portable applications such as noise-canceling

earbuds, smartphones, wearables, and cameras.

Biasing

High

Performance

Amp

CMOS ASIC

MEMS

Transducer

OUTPUT

VDD

GND

CS7331P