Akustica Inc., Pittsburgh, PA, has added four new HD voice microphones for use in smartphones, tablets, and other consumer electronics. The AKU142, AKU240, AKU342, and AKU440 deliver a 63 dB SNR, a tightly matched ±2 dB sensitivity, and a flat frequency response that meets ±5 dB from 50 Hz to 14 kHz super-wideband requirements. The 2.95 by 3.76 by 1.1 mm, top-port AKU142 and bottom-port AKU342 provide an analog output. The 3.0 by 4.0 by 1.0 mm top-port AKU240 and bottom-port AKU440 provide a digital PDM output. Additional features include matched sensitivity, phase, and frequency response; Faraday-shielded packages for RFI and EMI; and support for ultrasonic frequencies.
MEMS Microphones from Akustica