ADSP-2156x 120-Lead LQFP reference schematic

Hi,

We don't have Ezkit for ADSP-2156X processor with 120 LQFP.

We would suggest you to refer the EV-21569-SOM board for your design. Please refer the below link,

www.analog.com/.../ev-21569-som.html

www.analog.com/.../ev-21569-ezkit.html

Please note that ADZS-21569-EZKIT is obsolete.
 
Regards,
Anand Selvaraj.

Anand,

EZKIT, SOM, same difference here. The point is the power supply bypassing is different for a 400MHz 120 pin package vs. 1GHz BGA. Different # of supply pins, different frequency. Surely the amount of bypassing on that SOM is extremely overkill for the 120 pin package (not to mention probably impossible to lay out).

I would like to know what the recommendations are specifically for the 120 pin package.

Anything?

Even just some simple guideline would be nice, like 100n per pin + 10u per supply.

The 21569 SOM schematic doesn't apply, 400 pin BGA @ 1GHz != 120 pin LQFP @ 400MHz.

I find it hard to believe there is no documentation on this at all. Surely it just has not been put online yet?

Something, anything, please.

Thanks Anand, that is exactly the information I was looking for.