CUI Devices Adds Digital I2S Output Devices to MEMS Microphone Line

October 22 2020, 00:35
Oregon-based CUI Devices' Audio Group announced the addition of two new 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. 

The component savings and simplified integration allowed by adding a digital I2S interface make these MEMS microphones ideal for audio recording and voice capture in space-constrained designs such as smartphones, 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. OEM pricing is available under request from CUI Devices.

View details for the CMM-3526D-261-I2S-TR series 
View details for the CMM-4030D-261-I2S-TR series

CUI Devices is a technology company focused on the development, manufacturing, and distribution of electronic components for a broad base of market segments. In operation as CUI Inc since 1989, CUI Devices has focused on making the design engineer’s job easier through best-in-class online experiences, technical support, and customer service. In September 2019, CUI Devices announced a partial buy-out of CUI Inc’s operations, purchasing the Interconnect, Audio, Thermal Management, Motion, Sensor, and Switches lines. As a stand-alone entity, CUI Devices continues to invest in new technologies and expanded manufacturing capabilities.
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