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VU Meter Stereo LM3915

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Uploaded on Nov 7, 2011

Minha primeira tentativa de montar um VU Stereo com o CI LM3915. Multiplexei os dois canais de áudio usando um CI CD4066 como multiplexador e um CI NE555 como gerador de sinal de clock. Adicionalmente, coloquei filtros passa-baixas de segunda ordem em cada canal de áudio, com frequência de corte de aproximadamente 150Hz.


My first attempt to mount a Stereo VU with LM3915 IC. I've multiplexed the two audio channels using a CD4066 multiplexer IC and a NE555 IC as a clock signal generator. Additionally, I've put a second order low-pass filters in each audio channel, with a cutoff frequency of approximately 150Hz.

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