The SiS3813 is a bottom port analog MEMS microphone designed in a SMD compliant package of 2.75mm x 1.85mm x 0.9mm. Integrated with reliable MEMS acoustic sensor and analog amplifier ASIC, it offers great acoustic performance with 64dB Signal-to-noise ratio (SNR), a flat wideband frequency response, and -38dBV sensitivity with ± 1dB variation range. In addition, SiS3813 operates from 1.5v to 3.6v and consumes power less than 110uA.