Nano Archive

Modeling and simulation of a condenser microphone

Chen, Jen-Yi and Hsu, Yu-Chun and Lee, Shu-Sheng and Mukherjee, Tamal and Fedder, Gary K. (2008) Modeling and simulation of a condenser microphone. Sensors and Actuators A: Physical, 145-146 . 224 - 230.

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Official URL: http://www.sciencedirect.com/science/article/B6THG...

Abstract

A nodal analysis model of a condenser microphone has been implemented in an IC design environment. The fundamental characteristics, including sensitivity, frequency response and output referred noise are obtained by co-simulation with the microphone and the readout circuit using Cadence/Spectre® simulator. The new model is capable of dealing with the multi-field coupling effects including acoustical, mechanical and electrostatic behavior. Both the numerical analysis and measured data agree with the nodal simulation results. In addition, the implemented readout circuit shows good performance of interfacing a condenser microphone with 63 dB SNR and −35 dBV/Pa sensitivity. Co-simulating the microphone and readout circuit, enables trade-off analysis between the acoustical-electro-mechanical and electronic design parameters.

Item Type:Article
Additional Information:Special Issue: Transducers/07 Eurosensors XXI, The 14th International Conference on Solid State Sensors, Actuators and Microsystems and the 21st European Conference on Solid-State Transducers, The 14th International Conference on Solid State Sensors, Actuators and Microsystems and the 21st European Conference on Solid-State Transducers
Uncontrolled Keywords:Condenser microphone; Microphone model; System level simulation; Co-simulation
Subjects:Analytical Science > Nanotechnology for sensing and actuating
ID Code:4934
Deposited By:SPI
Deposited On:09 Apr 2009 13:18
Last Modified:09 Apr 2009 13:18

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