DS250DF230: DS250DF230 CTLE transfer function or characteristic curve

Liang Qiao

Part Number: DS250DF230

Hi,

I've found that some lower frequency CTLE characterisation data is available from this post:

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1215945/ds250df230-about-ctle-vga-dfe/4602981

I'm looking for information regarding it's gain relative to DC/low frequency for frequencies of 2.6GHz, 5.2GHz, and 10.4GHz for various CTLE boost settings.

The full transfer function of the CTLE filter would be great.

A graph like that shown below would be very helpful with the peaks corresponding to various boost settings:

Thank you very much!

2 months ago

0 Charles 2 months ago

TI__Expert 6342 points

Hi Liang,

While I look for the data, can you take a look at the IBIS-AMI model and see if the model behavior can replace this data?

You can access the IBIS model from the request button on the product page.

Best,

Charles

0 Liang Qiao 1 month ago

Prodigy 60 points

Hi Charles,

Just following up on trying to obtain some CTLE parameters.

Could you please provide the rough gain settings relative to DC for frequencies of 2.6, 5.2, and 10.4GHz for various CTLE boost settings?

Regards,
Liang

0 Charles 1 month ago in reply to Liang Qiao

TI__Expert 6342 points

Hi Liang,

I'll get back to you next Monday.

Best,

Charles

0 Liang Qiao 1 month ago in reply to Charles

Prodigy 60 points

HI Charles,

Just following up on trying to obtain some CTLE parameters again.

Could you please provide the rough gain settings relative to DC for frequencies of 2.5, 5.0, and 10.0GHz for various CTLE boost settings?

Regards,
Liang

+1 Charles 1 month ago in reply to Liang Qiao

TI__Expert 6342 points

Hi Liang,

Sorry for the delay. I've sent you the rough EQ data over email.

Best,

Charles

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DS250DF230: DS250DF230 CTLE transfer function or characteristic curve