Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
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| LMV1088 Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic Calibration Ability |
1463
Kbytes |
26-Feb-09 |
Download |
LMV1088 Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic Calibration Ability (Japanese)
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997 Kbytes |
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Package Availability, Models, Samples & Pricing
General Description
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.
The dual microphone inputs are differential to provide excellent noise immunity. The microphones are biased with an internal
low-noise bias supply.
Design Tools
| Title | Size in Kbytes |
Date |
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| LMV1088 Software (Windows XP/2000) allows control of the LMV1088 device and its operating modes |
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View |
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| LMV1088 Online Noise Reduction Demo |
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View |
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| "LMV1088 Evaluation Manual, Gerber and Software" |
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View |
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More Application Notes
| Title | Size in Kbytes |
Date |
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| AN-1832: Application Note 1832 LMV1089 Noise Suppression Microphone Amplifier Demo Board User`s Guide |
2467
Kbytes |
17-Jun-09 |
Download |
[Information as of 7-Nov-2009]
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