DAC70504EVM: Reason for capacitor connected to CS input

Amish Rughoonundon1

Part Number: DAC70504EVM

Hi I would like to know why on the eval board, there is a 560pF capacitor on the CS input of the DAC. IT's the only spi interface input that has that. Connecting this input to an FPGA is showing considerably slow down in reaching required voltage on the CS input for properly operating the spi interface

Thanks

Amish

over 5 years ago

0 Paul_Frost over 5 years ago

TI__Guru 57383 points

Hi Amish,

We are checking on this. We will get a response to you ASAP, likely tomorrow US time.

Thanks,

Paul

0 Katlynne Jones over 5 years ago

TI__Mastermind 42253 points

Hi Amish,

You can remove this capacitor with no issue. It was originally added for test conditions to reduce digital feedthrough on the board, but it is not needed for general use.

0 Amish Rughoonundon1 over 5 years ago

Prodigy 30 points

Sounds good. Thanks

Amish

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DAC70504EVM: Reason for capacitor connected to CS input