Peak indicator circuit schematic TLC272
This peak indicator circuit signals thru 2 led’s the exceeding of a pre-estabilished value of any stereo audio channel.
Signals from the 2 channels are rectified (monoalternance) with D1 and D2 and the resulted voltage is applied on OA IC TLC272 inversor entries.
The peak indicator circuit can be used up to 20kHz frequency and the current consumption with led off is 0.25mA and with both leds on is 24mA.
Peak indicator schematic above.
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