[SI-LIST] Re: Routing diff pair HDMI signals at 85 Ohms as opposed to 100 Ohms reduces radiation?
- From: Tesla <emcesd@xxxxxxx>
- To: tom_cip_11551@xxxxxxxxxxx
- Date: Mon, 17 Dec 2012 09:20:38 +0800 (CST)
Hi,
85 ohm will be not better for EMI pointiview.
I prefer 100ohm impedance control on PCB.
Thanks.
Tesla
At 2012-12-17 08:19:24,"miner_tom Cipollone" <tom_cip_11551@xxxxxxxxxxx> wrote:
>I was told recently that in order to help reduce radiated emissions in HDMI
>signals, routed from a PCB to an HDMI connector, that it was better to route
>the signals at 85 Ohms differential as opposed to 100 Ohms differential.
>
>
>The contention was that with added connector L/C the overall average impedance
>normalized closer to 100 Ohms.
>
>Is there any credence to this? Is there any research material that agrees with
>this?
>
>
>(Hi Nazish)
>
>Thank You
>Tom
>
>
>
>
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