DP83822H: What is the threshold value which triggers the reflection to be stored in TDR peak register(s)?

Walter Kodim

Prodigy 30 points

Part Number: DP83822H

What is the threshold value which triggers the reflection to be stored in TDR peak register(s).

Where can the threshold valule be set (register)?

over 6 years ago

0 Aniruddha Khadye over 6 years ago

TI__Mastermind 18425 points

Hi Walter,

At the moment, we do not characterize the threshold for TDR. What applications is this needed for?

-Regards

Aniruddha

0 Walter Kodim over 6 years ago

Prodigy 30 points

Hi Aniruddha,

thank you for your reply.

>> Does it mean that the threshold value is "fixed" and set to a considerable value in order to distinguish between Peak and Ripple?

The intended applicaton is related to cable diagnostics, and to understand more about the level of findind detecting the peaks (avoid "false" detection).

Best regards

Walter

0 Walter Kodim over 6 years ago in reply to Walter Kodim

Prodigy 30 points

Hi Aniruddha,

did you see my question / any update?

>> Does it mean that the threshold value is "fixed" and set to a considerable value in order to distinguish between Peak and Ripple?

Thank you.

Best regards

Walter

0 Ross Pimentel over 6 years ago in reply to Walter Kodim

TI__Mastermind 23675 points

Hi Walter,

The low threshold is around 200mV.

If this threshold is crossed, we have logic that will search for the highest peak followed but at the same time eliminating any shadows from its own receiver reflection.

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DP83822H: What is the threshold value which triggers the reflection to be stored in TDR peak register(s)?