LMV1012XPX-15/NOPB

Audio Amplifiers Overview

The LMV1012XPX-15/NOPB is a pre-amplified integrated circuit designed for small form factor electret microphones. It operates on a single supply voltage ranging from 2 V to 5 V with a typical supply current of less than 180 μA. The device provides a fixed voltage gain of 15.6 dB, enabling direct replacement for JFET amplifiers in two-wire microphone configurations. It features an extremely thin 4-bump DSBGA package (YPE) optimized for 1.0 mm canisters and thicker ECM form factors.

Audio Amplifiers Feature Summary

• Provides built-in fixed voltage gain to eliminate the need for external components
• Designed for high signal integrity in the presence of ambient or RF noise
• Enables a two-pin electret microphone solution with direct pin-to-pin compatibility with existing JFET market solutions

Audio Amplifiers Applications

• Cellular phones
• Headsets
• Mobile communications devices
• Automotive accessories
• Accessory microphone products

Audio Amplifiers Procurement Notes

Verify that the specific ordering suffix XPX corresponds to the YPE package type and 3000-unit reel quantity as listed in the official Texas Instruments packaging addendum. Confirm the -15 designation matches the required 15.6 dB gain specification for your design requirements before finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component when designing compact audio input stages requiring low power consumption and high gain accuracy. The device is suitable for applications needing improved linearity and temperature stability compared to traditional JFET circuits. Ensure the PCB layout accommodates the 4-bump DSBGA footprint and connects the outer ring ground pattern correctly.

Audio Amplifiers Part Context

This part belongs to the LMV1012 Analog Series, which includes variants with gains of 7.8 dB, 20.9 dB, and 23.8 dB. The series is engineered to replace legacy JFET amplifiers used in electret condenser microphones. The XPX suffix indicates a specific tape-and-reel packaging configuration within the broader LMV1012 product family.

Audio Amplifiers Replacement Considerations

LMV1012TPX-15/NOPB

Audio Amplifiers FAQ

How does the LMV1012 handle RF noise interference?

The LMV1012 offers excellent signal integrity against ambient or RF noise. To further reduce GSM-induced bumblebee noise, external capacitors can be connected to ground to filter out specific carrier frequencies.

What is the purpose of the A-weighted filter mentioned in the datasheet?

The A-weighted filter is used in Signal to Noise Ratio (SNR) measurements to correlate measured data with human hearing sensitivity, providing a more accurate representation of perceived audio quality.