Amplifier For Internal 3- Wire Analog Microphones And External Preamplifier

The LMV1031 Audio Amplifier is an ideal replacement for the JFET preamplifier that is currently used in the electret Microphones The LMV1031 is optimized for applications that require extended battery life, such as Bluetooth Communication links. The supply current for the LMV1031 is only 72 ?A. This is a dramatic reduction from that required for a JFET equipped Microphone The LMV1031 with its separate output and supply pins, offers a higher PSRR and eliminates the need for additional external components.
The LMV1031 is guaranteed to operate from 2V to 5V supply voltage over the full temperature range, has a fixed voltage gain of 20 dB and enhanced SNR performance. The LMV1031 is optimized for an output biasing of 1.09V.
The LMV1031 has less than 200 of output impedance over the full Audio bandwidth. The gain response of the LMV1031 is flat within the Audio band and is stable over the temperature range.
The LMV1031 is available in a large dome 4-bump ultra thin micro SMD package that CAN easily fit on the PCB inside the miniature Microphone metal CAN (package). This package is designed for Microphone PCBs requiring 1 kg adhesion criteria.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LMV1031UR-20/NOPB Texas Instruments Amplifier for Internal 3- Wire Analog Microphones and External Preamplifier 4-DSBGA
LMV1031URX-20/NOPB Texas Instruments Amplifier for Internal 3- Wire Analog Microphones and External Preamplifier 4-DSBGA -40 to 85
LMV1031 's PackagesLMV1031 's pdf datasheet
LMV1031URX-20




LMV1031 Pinout, Pinouts
LMV1031 pinout,Pin out
This is one package pinout of LMV1031,If you need more pinouts please download LMV1031's pdf datasheet.

LMV1031 Application circuits
LMV1031 circuits
This is one application circuit of LMV1031,If you need more circuits,please download LMV1031's pdf datasheet.


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