[FAQ] AM625: DVH Trace Length Matching Requirements

William Yang

Part Number: AM625

Tool/software:

Hi,

I'm designing a DVH to be laid out by SVT and am working on the layout guidelines for them. I am trying to find the trace length matching requirements for certain components but can't seem to find them on any existing documentation. For reference, these are the components I need the trace length matching for: MIPI-CSI2, LPDDR4, OSPI Flash, Ethernet RGMII. Could you help me find these requirements? Thank you!

Best,

William

over 1 year ago

0 Kallikuppa Sreenivasa over 1 year ago

TI__Guru**** 191399 points

Hello William

Thank you for the query.

Please refer below references,

https://www.ti.com/lit/an/spraar7j/spraar7j.pdf

https://www.ti.com/lit/an/sprad06/sprad06.pdf

https://www.ti.com/lit/an/sprad66a/sprad66a.pdf

Additionally please refer to the SK design files including schematics and layout.

Regards,

Sreenivasa

0 William Yang over 1 year ago in reply to Kallikuppa Sreenivasa

TI__Prodigy 30 points

Hi Sreenivasa,

I have gone through all of these references and could not find what I was looking for. Specifically, I'm looking for trace length matching requirements in mils of the signals within the MIPI-CSI2, LPDDR4, OSPI Flash, and Ethernet RGMII.

Best,

William

0 Kallikuppa Sreenivasa over 1 year ago in reply to William Yang

TI__Guru**** 191399 points

Hello William

Thank you.

AM625 guidelines

https://www.ti.com/lit/an/sprad06/sprad06.pdf

and

Am62A

https://www.ti.com/lit/an/sprad66a/sprad66a.pdf

The AM62A guide has additional information that is being added to AM62x.

Regards,

Sreenivasa

0 Kallikuppa Sreenivasa over 1 year ago in reply to Kallikuppa Sreenivasa

TI__Guru**** 191399 points

Hello William

You could use the below document as a reference.

https://www.ti.com/lit/an/sprad66a/sprad66a.pd

Please refer to the below standard or follow the SK implementation.

7.8.8 CSI-2 (D-PHY) Electrical Characteristics
Note
CSIRX0 is compliant with MIPI DPHY v1.2 dated August 1, 2014 including ECNs and Errata as
applicable

Regards,

Sreenivasa

Processors

Processors forum

[FAQ] AM625: DVH Trace Length Matching Requirements