DAC3283EVM: DAC3283 - low output DACCLK frequency

Steve Widener

Part Number: DAC3283EVM

Are there any limitations for a low output DACCLK frequency? There isn't a low-end frequency specification but the characteristic data only goes down to 50MHz in figures 21-24 of the datasheet. We have an application where the output update rate is less than 5 MHz. Are there any concerns with this?

over 7 years ago

0 Abdallah Obidat over 7 years ago

TI__Intellectual 775 points

When you say that the ouput update rate is less than 5MHz, do you mean that you will run DACCLK at less than 5MHz?

0 Steve Widener over 7 years ago in reply to Abdallah Obidat

TI__Genius 9575 points

correct!

0 jim s over 7 years ago in reply to Steve Widener

TI__Guru* 91947 points

Steve,

One of our designers look at the database of the design and noticed the clock path doesn’t have any internal ac coupling. It looks like it will be ok at 5MHz or maybe even slower. The device has not been tested at this rate though.

Regards,

Jim

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DAC3283EVM: DAC3283 - low output DACCLK frequency