CUI Devices Adds Digital I2S Output Devices to MEMS Microphone Line

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.

Among the many interesting demonstrations of new audio solutions for developers presented by TDK at CES 2020, the T5808 MIPI standard SoundWire microphone stands out as a "world's first," using the MIPI Alliance SoundWire compliant digital interface which allows bi-directional data flow. The T5808 is a multi-mode, low noise digital MEMS microphone in a small package, consisting of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ-Δ modulator.