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ADSP-BF561 Schematic Symbols/PPI interface question...

Question asked by mwfortner on Nov 12, 2011
Latest reply on Nov 15, 2011 by mwfortner

Hello,

 

We are working with a local customer that is planning on using the ADSP-BF561 in an application which will process multiple channels of sensor data.

 

Within the application, they will utilize 8 AD7622 (parallel) ADCs to convert the post-filtered analog sensor data into something usable by the DSP.  Specifically, the ADCs (8) will interface to a digital mux, which will then connect to the ADSP-BF561 via 1 of the 2 onboard PPI (parallel) interfaces.

 

They had a few questions that I was hoping you could help me with:

 

1.

They are looking for CAD/Scematic Symbol files for the following:

 

BF561SBBZ600 (297 ball PBGA)

BF561SKBCZ-6V (256 ball CSPBGA)

 

I started looking here:

http://www.analog.com/en/processors-dsp/blackfin/adsp-bf561/processors/tools-software-simulation-models/index.html

 

And found the footprint for the 297 ball:

http://www.analog.com/static/imported-files/packages/251630103B_297.pdf

 

and for the 256 ball:

http://www.analog.com/static/imported-files/packages/PKG_PDF/CSPBGA%20(BC)/BC_256_4.pdf

 

But I could not find the schematic symbols (they mentioned .BXL files).

 

Can we provide a symbol to the customer for these packages?

 

2.

They wanted to know if in addition to the following AppNote: http://www.analog.com/static/imported-files/application_notes/AN-813.pdf

 

If we can provide any other existing examples/AppNotes that address interface multiple ADCs to a Blackfin via PPI.

 

3.

They asked if there were any suggestions/concerns the factory may have related to this configuration and if you could recommend a specific mux that should be used in this application.

 

Thanks in advance for your help.

 

Mike

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