InvenSense's ICS‐43434 is a digital I²S output bottom port microphone. The complete ICS‐43434 solution consists of a MEMS sensor, signal conditioning, an analog‐to‐digital converter, decimation and antialiasing filters, power management, and an industry standard 24‐bit I²S interface. The I²S interface allows the ICS‐43434 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for an audio codec in the system.

The ICS-43434 is a bottom port microphone with an I²S digital output. A pair of ICS-43434 microphones can be connected directly to an input on a processor, eliminating the need for a discrete ADC or codec. The ICS-43434 integrates a MEMS transducer, ADC, decimation, and anti-aliasing filters in a 3.5 mm x 2.65 mm x 0.98 mm bottom port package.