[SI-LIST] Re: stripline differential impedance control issue
- From: Aneesh G <aneesh.govindan@xxxxxxxxx>
- To: ZYL <sango@xxxxxxx>
- Date: Wed, 10 Nov 2010 13:55:12 +0530
Sango,
Why dont you try swapping Layer 6 with Layer 7?
Impedance can be achieved in different ways...
1. By Varying Trace width.
2. By Varying board Thickness.
3. By varying Dielectric Material.
Regards
Aneesh G
On Wed, Nov 10, 2010 at 12:31 PM, ZYL <sango@xxxxxxx> wrote:
>
> Hello Everyone
> I got one problem related to PCB layout design for HDMI differential
> signal.
> Actualy, since layout area is so limited, we have to route some traces
> above HDMI differnetial signal in adjacent layer, like below
> Layer 6: ref. GND;
> Layer 7: lots digital/power signals (horizental)
> Layer 8: HDMI differential pairs (vertical)
> Layer 9: ref. GND
> Can someone let me know how much impact will get by this kind of routing?
> Is that possible to meet 100ohm diffenertial impedance by this routing?
> Thanks
> Best Regards
> Sango
>
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Warm Regards
Aneesh G
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