AES3 / SPDIF input selection

arneb · 15th August 2003, 08:58 AM

Hello,

I'm designing a converter from AES3 and SPDIF to I2S. It will be used for measurement/testing.
At the moment I am wondering what is the best solution to do an input selection between AES3, SPDIF coax. and SPDIF opt.
In my design, I use the CS8414 which has differenmtial inputs.
What about relays?
The input of the chip is compatible to RS422. Is there somthing like a RS422-Mux or -Switch that can be used?
Any experiances out there?
It is important that the input selection circuit has low influene to signal performance.

Thank you for help,

Greetings,

Arne

Prune · 1st February 2004, 06:37 PM

Use latching relays. Power is only used for switching, so the coil is not inducing anything into the signal.
You can get them cheap here:
http://www.allelectronics.com/cgi-bi...600&type=store

15th August 2003, 08:58 AM	#1
arneb diyAudio Member Join Date: Aug 2003 Location: Ilmenau	AES3 / SPDIF input selection Hello, I'm designing a converter from AES3 and SPDIF to I2S. It will be used for measurement/testing. At the moment I am wondering what is the best solution to do an input selection between AES3, SPDIF coax. and SPDIF opt. In my design, I use the CS8414 which has differenmtial inputs. What about relays? The input of the chip is compatible to RS422. Is there somthing like a RS422-Mux or -Switch that can be used? Any experiances out there? It is important that the input selection circuit has low influene to signal performance. Thank you for help, Greetings, Arne

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1st February 2004, 06:37 PM	#2
Prune Account Disabled Join Date: Mar 2003 Location: Vancouver	Use latching relays. Power is only used for switching, so the coil is not inducing anything into the signal. You can get them cheap here: http://www.allelectronics.com/cgi-bi...600&type=store

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