CUI Devices’ Audio Group today announced the addition of digital I²S output models to its comprehensive line of MEMS microphones. The bottom port CMM-3526D-261-I2S-TR and top port CMM-4030D-261-I2S-TR are housed in extremely compact, low profile packages measuring 3.50 x 2.65 x 0.98 mm and 4.00 x 3.00 x 1.25 mm, respectively. Thanks to their digital I²S interface, these MEMS microphones eliminate the need for a codec, allowing for the microphones to connect directly to digital signal processors and microcontrollers in an end application. This component savings and simplified integration make these digital I²S MEMS microphones ideal for audio recording and voice capture in space-constrained designs such as smart phones, tablets, smart home devices, wearables, and more.

Both microphones are omnidirectional and feature -26 dB sensitivity ratings, operating frequencies from 100 to 10,000 Hz, and current consumption of 400 microamps (µA). The CMM-3526D-261-I2S-TR further carries a signal-to-noise ratio (SNR) of 64 dBA, while the CMM-4030D-261-I2S-TR offers a SNR of 59 dBA.

As reflow solder compatible components, these digital I²S MEMS microphones afford designers additional flexibility where surface mount assembly is required. Both I²S models are also well suited for array applications used to perform beam forming and noise cancelation functions due to their tight sensitivity tolerances of ±1 dB.

The CMM-3526D-261-I2S-TR and CMM-4030D-261-I2S-TR are available immediately with prices starting at $1.59 per unit at 500 pieces through distribution. Please contact CUI Devices for OEM pricing.