C6678 1400MHz SmartReflex VID voltage range

Simon Pack

I see that the C6678 1400MHz device has an initial CVDD voltage requirement of 1.15V, and a SmartReflex voltage range of 0.95V to 1.15V.

The SmartReflex VID codes only give a range of 0.7V to 1.103V.

How will the 1400MHz speed grade devices ever request a voltage above 1.103V ?

Have the SmartReflex VID codes been re-mapped to different voltages on the 1400MHz device?

over 11 years ago

0 Raja over 11 years ago

TI__Guru* 81335 points

Hi,

We are working with expert to answer this post. Thank you for your patience.

0 Simon Pack over 11 years ago in reply to Raja

Expert 1670 points

Hello,

Any news yet? I am currently re-designing a SmartReflex design for C6678, and would like to calculate the resistor values so I can support 1400MHz devices.

A link to a document showing the VID to voltage translation (for a 1400MHz device) is all I am after. I can't find one.

Cheers,

Simon

0 Bill Taboada over 11 years ago in reply to Simon Pack

TI__Mastermind 42545 points

Hi Simon,

Sorry for the delay in responding. I wanted to be sure I had the correct information. The CVDD core voltage values defined by the VID code for all standard KeyStone device can be found in the Hardware Design Guide. For the 1400MHz version of the C6678, the value of 50mV should be added to each of the entries in the table. We will be adding an updated table in the next version of the Hardware Design Guide.

Regards, Bill

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C6678 1400MHz SmartReflex VID voltage range