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Altera_Forum
Honored Contributor I
776 Views

speed grade Cyclone III Starter Kit

Hi, 

 

anyone of you knows, what is the speed grade of the Cyclone III on the Starter Kit DK-START-3C25N or where to find the information? 

 

I want to connect a Texas Instruments ADS6444 Evaluation Module (100 MHz 14 bit) to the HSMC and gain experience in using LVDS at 350 MHz "DDR" connection.  

 

The minimum speed grade needed for 350 MHz "DDR" LVDS is C7. Would you suggest to rely on that information? 

 

Thanks.
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5 Replies
Altera_Forum
Honored Contributor I
78 Views

check the BOM which is an Excel file in the board_design_files/assembly directory 

 

it says its a C6 device
Altera_Forum
Honored Contributor I
78 Views

documents/tutorials/hardwaretutorials/my_first_fpga_tutorial.pdf says: 

 

page 1–16, Table 1–2. Speed Grade Settings, 

 

Cyclone III Starter Board: 8 

 

 

 

also in documents/Cyc III FPGA Starter Board Reference Manual: C8 

 

 

 

I would be pleased if it were the happy medium C7 ;)
Altera_Forum
Honored Contributor I
78 Views

i checked one i have here in the form of a NEEK, its a C6 

 

from what i've been told the schematic and BOM are supposed to be accurate since they are used in manufacturing of the kits
Altera_Forum
Honored Contributor I
78 Views

seems like i was wrong, i found a kit with a C8 

 

looks like checking the actual part on the kit is your best bet
Altera_Forum
Honored Contributor I
78 Views

I got also answers from Altera's support. They said: "The speed grade of the FPGA on the development board (DK-START-3C25N) is C8 (Sped Grade 8)". 

 

Finally i bought one from Digikey and got a C6 on it, although explicitly ordered an C7. :( 

 

Thanks all!
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