Electret Condenser Microphone Model

Created by	RitchRock
Created	May 12, 2020
Last modified	May 12, 2020
Tags	device-modeling elecret-mic electret-microphone mic microphone

Elecret Condenser Mic Model. Voltage Controlled Current Source represents JFET within electret mic body.

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3-wire configuration shown.

Default Mic Specs: Sensitivity: -42 dB at 1 kHz (0dB = 1 V/Pa, Vcc = 5 V, Rs = 5.6 kohm) Current Consumption: 600 uA Max SPL = 136 dB SPL (126.2 Pa)

For k: 7.9mV/Pa * 1/5.6kohm = 1.417uA/Pa (replace Pa w/ Volts)

For VE: 600uA / 1.417uA/Pa = 423.43V

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Electret Condenser Microphone Model PUBLIC