VU Meter using UAA180


Posted on Feb 5, 2014

This circuit uses the measurement of SIEMENS and UAA180 circuit of rectification of accuracy, around IC2B TL072. Calibration has been a 3dB steps from one another LED, make sure, a very good level of precision, the measurement of acoustic signals entering. LED can be square, so that when they put one by the other, they give you a bar, without spaces. Led UAA180 controlled by IC, IC 12 Led UAA180 control, which is as an indicator LED to-12dB to 6 dB


VU Meter using UAA180
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