LMH6518DESIGN-CALC: LTSpice simulatio

Vicente A.O

Part Number: LMH6518DESIGN-CALC
Other Parts Discussed in Thread: LMH7220, PSPICE-FOR-TI, TINA-TI

Good day. I am trying to simulate (using LTspice), the LMH7220 component (couldnt find it in the dropdown list). For this I have downloaded the component provided in: LMH7220: Request for getting spice model - Amplifiers forum - Amplifiers - TI E2E support forums (0576.LMH7220.zip ). While trying to simulate, I do not have thecorrect responce I would expect, also, the pin numbers are no the ones from the datasheet.I there another LMH7220 model for LTspice?, Maybe I am doing something wrong in the simulation?.

Thanks a lot in advamnce,

Best regards.

5 days ago

0 HO SIU 5 days ago

TI__Genius 12225 points

Hi Vicente,

It's a bit difficult to distinguish the simulation waveforms with all of the signals plotted on the same window. Could you please share another image with the signals on different windows?

For LVDS, the termination resistor needs to be a single 100Ω resistor between OUT+ and OUT- at the receiver side; not two 100Ω to GND. Could you please rerun your simulation after altering your termination resistor?

0 Vicente A.O 4 days ago in reply to HO SIU

Prodigy 10 points

Good day HO SIU . Thank you very much for your reply. Yes, I realized that after I posted, I though I had erased the post. Now the simulation works well. There is one thing tho. Still the values of the pins of the model of the component are not right.

Best regards,

0 HO SIU 4 days ago in reply to Vicente A.O

TI__Genius 12225 points

Hi Vicente,

Is there a way for you to share what you are seeing at the pins? In addition, I'm not able to debug any issues involving LTSpice due to it being a competitor's simulator. Would it be possible for you to do your simulation TINA-TI or PSpice-for-TI?