LMV1051SDX-BA/NOPB

Audio Special Purpose Overview

The LMV1051SDX-BA/NOPB is a signal processor designed for dual microphone adaptive noise cancelling with wind noise alert. It processes signals from two ECM or MEMS microphones to create an adaptive beam forming system, achieving up to 30dB peak noise rejection of stationary and non-stationary sources without distorting the desired signal. The device operates on a mic bias supply, enabling battery-free operation in wired headsets. It features ultra-low power consumption of 210 μA (typical) and zero-latency processing. The component supports telephony bandwidth and offers better EMI noise rejection than standard ECMs.

Audio Special Purpose Feature Summary

• Dual Mic Technology with Active Directional Pattern
• Up to 30dB Peak Noise Rejection
• Wind Noise Alert and Protection (Reduces Wind Noise by ≈ 20 dB)
• Ultra-Low Power Consumption: 210 μA Typical

Audio Special Purpose Applications

• Wired Headset
• Webcams
• Cellular or Cordless Handsets

Audio Special Purpose Procurement Notes

This component carries the 'Not Recommended for New Designs' status. Verify current production availability and lead times directly with Texas Instruments or authorized distributors before initiating new procurement cycles. Ensure compliance with RoHS and Green packaging specifications as listed in the ordering information.

Audio Special Purpose Selection Notes

Select this device for applications requiring integrated adaptive noise cancellation in dual-microphone setups. It replaces standard ECMs using 2-wire or 3-wire interfaces. Consider the 3 x 3 mm package size and 0°C to 60°C operating temperature range. Note that it is not recommended for new designs; evaluate alternative components for future projects.

Audio Special Purpose Part Context

The LMV1051SDX-BA/NOPB belongs to the LMV1051 family of audio signal processors. It is manufactured by Texas Instruments under the National Semiconductor brand heritage. The specific suffix indicates a WSON package with 10 pins and a tape and reel quantity of 4500 units.

Audio Special Purpose Replacement Considerations

Texas Instruments designates this part as Not Recommended for New Designs (NRND). No direct public substitute part numbers are confirmed in the provided documentation. Designers should consult TI sales offices for potential replacement recommendations.