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LMV1088 pdf datasheet
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The LMV1088 amplifies near-field voice signals within 4cm of the microphones while rejecting far-field acoustic noise greater than 0.5m from the microphones. Up to 20dB of far-field rejection is possible in a properly configured and calibrated system.
Part of the Powerwise® family of energy efficient solutions, the LMV1088 consumes 1mA of supply current while providing superior performance to DSP solutions consuming over 10 times the power.
A fast calibration during the manufacturing test process allows the LMV1088 to compensate the entire microphone system. This calibration includes mismatch in microphone gain and frequency response, as well as acoustical path variances. The LMV1088 stores the calibration coefficients in on-board EEPROM. The calibration is initiated by I2C command or by pin control.
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