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TMDSEMU200-U: TMDSEMU200-U Emulator I/O/Load capacitance

Part Number: TMDSEMU200-U

Hi,

I am looking for below parameters for the JTAG Emulator for part# TMDSEMU200-U. I could not able to find below information in datasheet. Where can i find the values?
1) Input capacitance for the each Input pin

2) Output capacitance of the each Output pin

3) maximum capacitance driving for output pin

4) What is the maximum clock frequency, it can out?

Please share any document contains above details.

  • Hi Anand,

    Unfortunately this information is not specified for this product. 

    If you want to find out other information about XDS200 products, I refer you to the following page

  • Hi Gus Martinez

    I wanted to perform timing analysis for the JTAG interface right from the JTAG emulator + Cable to processor chip considering PCB layout.

    load capacitance and propagation delay to PCB trace can be estimated, but there are unknown parameters at JTAG emulator end. which is very much required for proper timing analysis. Any suggsestion ?

  • This is beyond my area of expertise, but to come up with an accurate model you would probably need some more information about the logic in the emulator pod. Unfortunately, I don't have the design details for the TMDSEMU200-U, I believe those are proprietary to Spectrum Digital. However, the JTAG emulator will likely consist of a processor, maybe a buffer, a connector, and the cable to the target board.

    Perhaps looking at an open-source embedded JTAG emulator would give you some idea of how to accurately derive your model? Depending on which MCU you are working with you may be able to find an eval platform with an embedded XDS200 emulator. Just a thought.