ADC12DJ5200RFEVM: Does it work with a Xilinx FPGA?

Ivan Perez

Part Number: ADC12DJ5200RFEVM
Other Parts Discussed in Thread: ADC12DJ3200EVM

Hello!

I'm starting a project where I need to connect a high speed ADC and high speed DAC to an FPGA. The system could be like this:

ADC -> (FMC) -> FPGA -> (FMC) -> DAC

Ideally, ADC and DAC should achieve at least 6 GSPS so I think that ADC12DJ3200EVM and ADC12DJ5200RFEVM could fit.

FPGA could be ZCU102 (2 FMC with 8 GTH each one) or Another option could be use a VCU118 or an ada-sdev-kit2 and a FMC splitter.

In addittion, I would like to know if I could achieve 10 GSPS using 8 JESD204b lanes. I've looked at the datasheet (page 103 and 104) And I've found three options JMODE 30 (with 12 bit resolution) and JMODE5 and JMODE44 (with 8 bit resolution) that could fit, am I right?

Finally I wanted to check which pins are routed to the FMC on ADC12DJ5200RFEVM. I've looked for the schematic, but I found that one that it's suppose to have a ADC12dj5200 but if you look inside the schematic the chip is an ADC12DJ3200AAVR https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/979172/adc12dj5200rfevm-revision-c-design-file

By the other hand, if I get ADC12DJ3200EVM, i think the most suitable modes to achieve 6,4 GSPS with 8 lanes are JMODE 0 (12 bits) and JMODE 5 (8 bits) Am I right?

But I have the same problem, I don't know if is suitable to use it with ZCU102, because I don't know if the ADC FMC pins fit with the FPGA FMC pins... I would need the schematic to verify it...

To summarize:
Could I achieve 10,4 GSPS with ADC12DJ5200RFEVM using 8 lanes of JESD204 and using mode 30, 5 or 44?

Could I achieve 6,4 GSPS with ADC12DJ3200EVM using 8 lanes of JESD204 and using mode 0 or 5?

Are the FMC pins fit with ZCU102, ada-sdev-kit2, or VCU118?

Thank you!

over 2 years ago

0 Neeraj Gill over 2 years ago

TI__Mastermind 20541 points

Hi,

The schematic for the ADC12DJ5200RFEVM and ADC12DJ3200EVM or on ti.com under the EVM page. Here is the link to ADC12DJ5200RFEVM sch and ADC12DJ3200EVM sch respectively.

https://www.ti.com/lit/zip/slvc778

https://www.ti.com/lit/zip/slvc697

I know ADC12DJ3200EVM and ADC12DJ5200RFEVM has lanes routed properly and with should work with VCU118. For ZCU102 you will need to look at sch for the ADC evms and check if the properly FMC mapping is done.

Regards,

Neeraj

0 Ivan Perez over 2 years ago in reply to Neeraj Gill

Prodigy 80 points

Thank you, and about the frequency?

Could I achieve 10,4 GSPS with ADC12DJ5200RFEVM using 8 lanes of JESD204 and using mode 30, 5 or 44?

Could I achieve 6,4 GSPS with ADC12DJ3200EVM using 8 lanes of JESD204 and using mode 0 or 5?

Also I would like to know the frequency of the lanes?

At the datasheet of ADC12DJ3200EVM it says:

fsysref = (R x Fclk) / (10 x F x K x n)

So in JMODE 0: fsysref = (4 x 3200) / (10 x 8 x 16 x 1) = 10?
And in JMODE 5: fsysref = (2.5 x 3200) / (10 x 1 x 25 x 1) = 32?

But, what's the frequency of the lanes?

Thank you!

+1 Neeraj Gill over 2 years ago in reply to Ivan Perez

TI__Mastermind 20541 points

Hi Ivan,

Ivan Perez said:
Could I achieve 10,4 GSPS with ADC12DJ5200RFEVM using 8 lanes of JESD204 and using mode 30, 5 or 44?

Yes you can achieve 10.4GSPS with ADC12DJ5200RFEVM using 8 lane with JMODE30,5,44.

Ivan Perez said:
Could I achieve 6,4 GSPS with ADC12DJ3200EVM using 8 lanes of JESD204 and using mode 0 or 5?

Yes you can achieve 6.4 GSPS with ADC12DJ3200EVM with JMODE0 and 5, which uses 8 lanes.

Ivan Perez said:
At the datasheet of ADC12DJ3200EVM it says:

fsysref = (R x Fclk) / (10 x F x K x n)

So in JMODE 0: fsysref = (4 x 3200) / (10 x 8 x 16 x 1) = 10?
And in JMODE 5: fsysref = (2.5 x 3200) / (10 x 1 x 25 x 1) = 32?

JMODE0:SYSREF freq = 10MHz is the max sysref frequency you can use any integer divider for your sysref frequency.

JMODE5: SYSREF Freq= (2.5 x 3200)/(10 x 1 x 20 x1) = 40MHz s the max sysref frequency you can use any integer divider for your sysref frequency.

Serdes Rate is R X CLOCK RATE

JMODE0: Serdes rate = 4 x 3200 = 12800Mbps

JMODE5: Serdes rate = 2.5 x 3200 = 8000Mbps

Regards,

Neeraj

0 Ivan Perez over 2 years ago in reply to Neeraj Gill

Prodigy 80 points

Great! Thank you for your fast reply!

It has been really helpful

0 Ivan Perez over 2 years ago in reply to Ivan Perez

Prodigy 80 points

One more question, sorry

Both kits, ADC12DJ3200EVM and ADC12DJ5200RFEVM includes a FMC+ to FMC adapter,

How it is routed? Is it not compatible FMC and FMC+ without the adapter?

Thank you!

0 Rob Reeder over 2 years ago in reply to Ivan Perez

TI__Mastermind 20080 points

Hi Ivan,

Both the 3200 and 5200RF EVM kits do not included an FMC to FMC+ adapter.

Regards,

Rob

0 Ivan Perez over 2 years ago in reply to Rob Reeder

Prodigy 80 points

Ok, thank you, but here it says that is included ADC12DJ3200EVM

But I think that FMC+ are compatible with FMC right?

In addition, for example A11 FMC+ pin is coneccted with A11 FMC pin, right?

Thank you!

0 Rob Reeder over 2 years ago in reply to Ivan Perez

TI__Mastermind 20080 points

Hi Ivan,

Yes, that is correct. If the FMC+/FMC adaptor does come with the kit for some reason, we can send you one free of charge. Please just let us know.

Thx,

Rob

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ADC12DJ5200RFEVM: Does it work with a Xilinx FPGA?