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ADC12DL2500EVM: companion capture boards

Rob Maris
Expert 1620 points
Part Number: ADC12DL2500EVM
Other Parts Discussed in Thread: TSW14DL3200EVM, ADC12DL3200EVM, , ADC12DL2500

Tool/software:

The documentation (ADC12DLXX00 user'sguide) states the following in a note:

While this is the same connector used for FMC standard boards, the LVDS data, clock and strobe
pinout is proprietary to the ADC12DL3200EVM, TSW14DL3200EVM, and other compatible boards.

Later in this document, a TSW14DL3200EVM as companion is mentioned as companion board - which is quite expensive. Isn't any FPGA (FMC)  board available that runs together with this EVM? For example up to 1.3 GSPS? Nevertheless, the usage of EVM's is primarily intended as an aid to design an analog data capture system with Capture (DDR)-RAM (and a RAM-readout backend).

  • 0
    TI__Mastermind 39050 points

    HI Rob,

    Unfortunately, we only have the TSW14DL3200EVM available for interfacing with the ADC12DL2500EVM.

    Otherwise, you are free to purchase another vendor's FPGA dev kit and develop you own FW.

    Regards,

    Rob

  • 0 in reply to Rob Reeder
    Expert 1620 points

    Hi Rob two,

    Thanks for the quick reply. Of course I'm free to develop own firmware to get a capture working based on another FPGA. That's a nobrainer. :-)

    Well, let me focus on the "LVDS data, clock and strobe pinout", related to "other compatible boards".
    This suggests that it's known that compatible boards do exist.

    BTW: Part of my investigation led me also to another high-speed converter, the AD9625, where Analog Devices offer a more collaboration like approach in order to be more flexible in getting experiments or an evaluation done. But the 12DL-family is more recent and its features offer more use case options.

    I think I'm going to set up a collaboration with someone who could also be interested in development of a specific high speed capture application.

  • 0 in reply to Rob Maris
    TI__Mastermind 39050 points

    Hi Rob,

    Thanks for the update and details. The AD9625 has a JESD interface. This is different from the ADC12DL2500 device family which has an LVDS digital interface.

    Regards,

    Rob

  • 0 in reply to Rob Reeder
    Expert 1620 points

    Regarding JESD: it appears to me that those devices are more expensive, but that might also have a relationship to issue date and hence, chip technology. There are some devices out there that offer also at least 2.5 GSPS, but I found them to have release dates over five years back (e.g. Teledyne e2v). And they tend to dissipate more heat.

    I think that DDR LVDS makes the ADC12DL-family a bit more attractive, compared to both std. LVDS (in absolute terms) and JESD (in relative terms), and as such, a bit less critical when it comes to signal routing.

  • 0 in reply to Rob Maris
    TI__Mastermind 39050 points

    Agreed, let me know if you have any other questions. I will close this post for now. Or you can start a new post with a separate question.

    Regards,

    Rob