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TS3DDR3812: S-parameter model

Shriram Moharil
Expert 4490 points
Part Number: TS3DDR3812


I would like to know whether you have the S-parameter model for TS3DDR3812RUAR. I only see the HSPICE and IBIS models online.

regards,

-Shriram

  • 0
    TI__Mastermind 24430 points

    Hey Shriram,

    We don't have a s-parameter modeled from silicon for this device. However, I will talk to the rest of our apps team and  attach an s parameters file created from simulated results. To be clear this will not be  results from lab tested devices.

    I hope this will 

    Thanks,
    Kameron

  • 0 in reply to Kameron Hill
    TI__Expert 4490 points

    Thanks Kameron, appreciate it. This would be very helpful in estimating insertion loss and impedance discontinuities in our system.

    regards,

    -Shriram

  • 0 in reply to Shriram Moharil
    TI__Mastermind 24430 points

    Hello Shriram,

    Our teams S parameter model expert is OoO right now and we will get you what you need when he returns in a couple days!

  • 0 in reply to Kameron Hill
    TI__Expert 4490 points

    Thank you. Yes early next week is fine. I would request this at the earliest since we need these for our board design simulations which are in progress.

    regards,

    -Shriram

  • 0 in reply to Shriram Moharil
    TI__Mastermind 35648 points

    TS3DDR3812_FULL.zip

    Hey Shriram,

    Please see attached s-parameter file for TS3DDR3812

    Thanks,
    Rami

  • 0 in reply to Rami Mooti1
    TI__Expert 4490 points

    Hi Rami,

    The attached file seems to be in an "SnP" format. Can you clarify the number of ports in the file? Is this supposed to be an s2p?

    regards,

    -Shriram

  • 0 in reply to Shriram Moharil
    TI__Mastermind 35648 points

    Hey Shriram,

    Sorry for not being more clear. This is the full s-parameter file and as Kameron mentioned this was created from simulated results. The SnP has all 36 ports.

    Thanks,
    Rami

  • 0 in reply to Rami Mooti1
    TI__Expert 4490 points

    Hi Rami,

    Thanks for clarifying. Do you have a port mapping file that I can use? I am not clear on the port mapping in the SnP file.

    regards,

    -Shriram

  • 0 in reply to Shriram Moharil
    TI__Mastermind 35648 points

    Hey Shriram,

    The Port mapping repeats with

    1. On channel Source (Bx)
    2. Off channel Source  (Cx)
    3. On channel Drain (Ax)

    In actuality the Bx and Cx channels can be switched (as these can just be reversed logic) as long as you stick to the same convention.

    Here is a port mapping file as well : 

    Fullscreen TS4DDR3812_Port_mapping.txt Download 
    TS3DDR3812 S-Parameter Mapping
Port Channel
1 B0
2 C0
3 A0
4 B1
5 C1
6 A1
7 B2
8 C2
9 A2
10 B3
11 C3
12 A3
13 B4
14 C4
15 A4
16 B5
17 C5
18 A5
19 B6
20 C6
21 A6
22 B7
23 C7
24 A7
25 B8
26 C8
27 A8
28 B9
29 C9
30 A9
31 B10
32 C10
33 A10
34 B11
35 C11
36 A11

    Thanks,
    Rami

  • 0 in reply to Rami Mooti1
    TI__Expert 4490 points

    Thanks again Rami. This is very helpful indeed. 

    However I am viewing the S-parameters in Hyperlynx and observe that there are only 32 ports though in the SnP instead of 36. Could you check at your end as well?

    regards,

    -Shriram

  • 0 in reply to Shriram Moharil
    TI__Mastermind 35648 points

    Hey Shriram,

    Sorry about that!
    Try this one

    3240.TS3DDR3812_FULL.zip

    Thanks,
    Rami

  • 0 in reply to Rami Mooti1
    TI__Expert 4490 points

    Thank you! Appreciate your prompt responses!

    I'll go ahead and close this ticket as I believe I have everything I need.

    regards,

    -Shriram