Hola gente!

Rescaté de un auto stereo que no funcionaba un TDA7381, y corté la placa para utilizar el circuito impreso y los componentes de esta etapa.

http://www.electroniq.net/audio/tda7381-car-audio-amplifier-circuit-diagram.html

Pienso utilizar este preamplificador para controlar tonos y volumen:

http://construyasuvideorockola.com/proyect_pre_eq_simple.php

Y como fuente de audio voy a usar este modulo que pedi a nuestros amigos chinos:

http://www.winddeal.net/image/30866-5.jpg


Necesitaria que me ayuden con la conexion de los pines de mute y stand by del tda, ya que no estoy canchero con este tipo de proyectos y no logro entender el datasheet:


Standby and muting facilities are both CMOS-compatible. If unused, a straight connection to
Vs of their respective pins would be admissible.
Conventional low-power transistors can be employed to drive muting and standby pins in
absence of true CMOS ports or microprocessors. R-C cells have always to be used in order
to smooth down the transitions for preventing any audible transient noises. Since a DC
current of about 10 A normally flows out of pin 22, the maximum allowable muting-series
resistance (R2) is 70 k, which is sufficiently high to permit a muting capacitor reasonably
small (about 1F). If R2 is higher than recommended, the involved risk will be that the
voltage at pin 22 may rise to above the 1.5 V threshold voltage and the device will
consequently fail to turn OFF when the mute line is brought down.
About the standby, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.


Por otra parte estoy dudando sobre como alimentar el proyecto. Tomo los 12 V del auto o utilizo un regulador de 9v para no estar al limite?

Saludos