Solid State A/B Switch (audio)

JeffDajos · Post by **JeffDajos** » Thu Nov 20, 2003 6:18 am

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.

Externet · Post by **Externet** » Thu Nov 20, 2003 8:12 am

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

jollyrgr · Post by **jollyrgr** » Thu Nov 20, 2003 4:08 pm

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

Mike · Post by **Mike** » Fri Nov 21, 2003 6:49 pm

I was just wondering, could that chip be controlled by a standard pushbutton from the pin to either + or - supply?<p>-Mike

JeffDajos · Post by **JeffDajos** » Tue Nov 25, 2003 9:18 am

That AD chip looks promising. Thanks for the help. I'll let you know how it works.

Bernius1 · Post by **Bernius1** » Tue Nov 25, 2003 9:56 am

4066 or 4016? Check the data sheets. 'Ol reliable.

T&L Publications

Solid State A/B Switch (audio)

Solid State A/B Switch (audio)

Re: Solid State A/B Switch (audio)

Re: Solid State A/B Switch (audio)

Re: Solid State A/B Switch (audio)

Re: Solid State A/B Switch (audio)

Re: Solid State A/B Switch (audio)

Who is online