LMH0041 Cascade

PAN-M

Mastermind 8375 points

Other Parts Discussed in Thread: LMH0041

Dear all.

Our customer will use LMH0041 with cascade connection.
Pls. see attached file.

4532.LMH0041.pdf

In this case, is there no problem of jitter?
Is Gitta resolve by each block?
Does only delay occur?

Regards,
PAN-M

over 11 years ago

0 Michael Peffers over 11 years ago

TI__Mastermind 20820 points

Hi Pan,

Somebody is looking into this and will respond shortly.

0 Nasser Mohammadi over 11 years ago in reply to Michael Peffers

TI__Guru* 93670 points

Hi Pan,

We have customer using LMH0041 in this mode so we do not expect a problem.

Regards,,nasser

0 PAN-M over 11 years ago in reply to Nasser Mohammadi

Mastermind 8375 points

Your answer are;

In this case, is there no problem of jitter?
>>Yes
Is Gitta resolve by each block?
>>Yes
Does only delay occur?
>>Yes

Is it correct?

Thanks and Regards,
PAN-M

0 Mark Sauerwald88474 over 11 years ago in reply to PAN-M

TI__Genius 13475 points

You are correct.

The LMH0041 has a reclocker in it's receiver which will remove accumulated jitter, and many links can be cascaded. The reclocking takes place in the serial domain, before the data is deserialized, and as a result the delay is minimal. This is the purpose of the 'loopthrough' output.

Mark Sauerwald

0 Nasser Mohammadi over 11 years ago in reply to Mark Sauerwald88474

TI__Guru* 93670 points

Hi Pan,

I am not aware of any customer using LMH0041 and cascading it 77 times. So i cannot say 100% this will work. We have cascaded 32 ports of our relockers but not at 77 ports. Also, guaranteeing this over different patterns has not been done.

Regards,,nasser

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LMH0041 Cascade