Conmutador de audio digital - Parte II


A base de un conmutador como el CD4052 podemos controlar entre las fuentes de audio de un mini Hi-Fi System, como bien comentamos anteriormente. Supongamos en nuestro caso, tenemos un amplificador TDA7386 de 4 canales, y tres fuentes de audio posibles, que podrían ser más: CD Player, Tuner y AUX.

El CD Player tiene una salida analógica de dos canales: L y R, un sintonizador de fm en base a un TDA7000 y un decodificador stereo LM1800 que entrega dos canales obviamente, y una entrada auxiliar de dos canales adaptada adecuadamente.

Las conexiones es este caso se reducen a :

Se manejará dicho multiplexor con un PIC16f877 encargado también de controlar la totalidad del sistema como ya estamos disseñando...

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