Pinout
Specifications| SNR | 65 dB |
| Interface | I2C |
| Supply Current Per Channel | 0.60 mA |
| Supply Min | 2.7 Volt |
| Supply Max | 5.5 Volt |
| Special Features | Analog Noise Reduction (Uplink) |
| Temperature Min | -40 deg C |
| Temperature Max | +85 deg C |
| PowerWise | Yes |
| View Using Catalog |
DescriptionThe LMV1090 is a fully analog dual differential input, differential output, microphone array amplifier designed to reduce background acoustic noise, while delivering superb speech clarity in voice communication applications.
The LMV1090 preserves near-field voice signals within 4cm of the microphones while rejecting far-field acoustic noise greater than 50cm from the microphones. Up to 20dB of far-field rejection is possible in a properly configured and using ±0.5dB matched micropohones.
Part of the Powerwise™ family of energy efficient solutions, the LMV1090 consumes only 600A of supply current providing superior performance over DSP solutions consuming greater than ten times the power.
The dual microphone inputs and the processed signal output are differential to provide excellent noise immunity. The microphones are biased with an internal low-noise bias supply.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LMV1090TL |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LMV1090TLX |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Design Tools
| Title |
Size in Kbytes |
Date |
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| LMV1090 Software (Windows) Controls the LMV1090 and Its Operating Modes |
259 Kbytes |
15-Jun-2009 |
View |
Download |
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If you have trouble printing or viewing PDF file(s), see Printing Problems.
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Application Notes
| Title |
Size in Kbytes |
Date |
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| AN-1948: Application Note 1948 LMV1090 Noise Suppression Microphone Amplifier Evaluation Kit User`s Guide |
4152 Kbytes |
21-May-09 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
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LMV1090 Data Sheet
