Solid State A/B Switch (audio)
Solid State A/B Switch (audio)
I'm wondering if anyone knows of a perfectly clean way to build a solid state A/B switch for a car audio system. Currently I'm using relays and a pic to do this job. The relays are big and sometimes cause a slight pop in the speakers when switched. My main concern with the solid state electronics is that there is no change of the audio signal from the head unit.
Jeff
Re: Solid State A/B Switch (audio)
Hello Jeff.
In case the A/B switching is done at line level, you can use a 4053 chip.
If done at speaker level, there are solid state relays you may try.
Miguel
In case the A/B switching is done at line level, you can use a 4053 chip.
If done at speaker level, there are solid state relays you may try.
Miguel
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Re: Solid State A/B Switch (audio)
Try the ANALOG DEVICES analog quad audio switch. The part number is SSM2404. Below is a link to the data sheet in PDF form. This device is meant to switch at the LINE level. But it will switch low amperage audio signals up to +/- 12 volts.<p>http://www.analog.com/UploadedFiles/Dat ... sm2404.pdf
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Re: Solid State A/B Switch (audio)
I was just wondering, could that chip be controlled by a standard pushbutton from the pin to either + or - supply?<p>-Mike
Re: Solid State A/B Switch (audio)
That AD chip looks promising. Thanks for the help. I'll let you know how it works.
Jeff
Re: Solid State A/B Switch (audio)
4066 or 4016? Check the data sheets. 'Ol reliable.
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