App note: Pre-amplifying the analog output of a MEMS microphone

Designing pre-amp for MEMS microphone found in this app note from ST Microelectronics. Link here (PDF) This application notes describes the key parameters related to pre-amplification of the output signal of an analog MEMS microphone (MP23AB02B). A solution is proposed based on the TS971 op amp. For a differential output configuration, we can consider using […]

App note: Op amps for MEMS Microphone preamp circuits

App note from TDK on design considerations of preamps used on MEMS microphones. Link here A microphone preamp circuit is used to amplify a microphone’s output signal to match the input level of the devices following it in the signal chain. Matching the peaks of the microphone’s signal level to the full-scale input voltage of […]

App note: Analog and digital MEMS microphone design considerations

App note from TDK about the things to consider when integrating analog and digital MEMS microphones into a system design. Link here (PDF) Microphones are transducers that convert acoustic pressure waves to electrical signals. Sensors have become more integrated with other components in the audio signal chain, and MEMS technology is enabling microphones to be […]

App note: Microphone specifications explained

All about MEMS microphone from TDK Invensense. Link here (PDF) A MEMS microphone IC is unique among InvenSense, Inc., products in that its input is an acoustic pressure wave. For this reason, some specifications included in the data sheets for these parts may not be familiar, or familiar specifications may be applied in unfamiliar ways. […]

App note: General design considerations for MEMS microphones

Proper mounting of miniaturized MEMS from Cirrus Logic application notes. Link here (PDF) This application note offers recommendations in mechanical, PCB land pattern, and solder paste stencil design to deliver the best microphone performance in the final application design.