SNAA355 April 2021 TPL1401
| Key Input Parameter | Key Output Signal | Recommended Device |
|---|---|---|
Input signal Level : 20mVrms Frequency of operation : 20Hz–20KHz Microphone sensitivity variation: ±3dB Supply voltage : 5 to 12V | 1Vrms Output Voltage with code dependent gain calibration | TPL1401, TLV906x |
Objective: Calibration of microphone amplifier to adjust for the variation in sensitivity of the electret microphones.