ADC12DJ3200: JESD204B timing

Takuma Ito

Expert 5200 points

Part Number: ADC12DJ3200

Hello,

There are multiple JMODE supporetd by ADC12DJ3200.
Is the data output timing different between the JMODE?

i want to know if the latency from ADC sampling clock changes depending on the JMODE settings.

Is there any relationship between the derived parameter of R, L, M?
if so is there any equation for them?

over 5 years ago

0 Vijayendra Varma Siddamsetty over 5 years ago

TI__Genius 10745 points

Hello Takuma,

I have notified our ADC12DJ3200 expert regarding your question. He will provide a more detailed response soon.

Regards,
Vijay

0 Jim Brinkhurst1 over 5 years ago in reply to Vijayendra Varma Siddamsetty

TI__Mastermind 44560 points

Hi Takuma
Yes the data format (and some timing details) are different for each JMODE. The data format details are described with the information in Tables 16 through 37 of the datasheet.
Please refer to Figure 1 and Table 6.9 Switching Characteristics containing ADC CORE LATENCY and JESD204B AND SERIALIZER LATENCY information. These describe the latency for all JMODE settings.
Best regards,
Jim B

0 Takuma Ito over 5 years ago in reply to Jim Brinkhurst1

TI__Expert 5200 points

hello Jim,

So basically delay from sampling to data output is tADC + tTX.
and the tADC and tTX changes depending on the JMODE setting, which is described in page 24 of datashet (picture like below)

is my uderstanding correct?

0 Jim Brinkhurst1 over 5 years ago in reply to Takuma Ito

TI__Mastermind 44560 points

Hi Takuma
That is correct.
Best regards,
Jim B

Data converters

Data converters forum

ADC12DJ3200: JESD204B timing