DAC38J82EVM: EVM balun configuration

Ilya Michlin

Prodigy 120 points

Part Number: DAC38J82EVM

Dear TI,

On your EVM shcematics you've used the following balun configuration.

Can you please advise why would you recommend the two baluns configuration below ?

Thanks.

over 8 years ago

0 Ilya Michlin over 8 years ago

Prodigy 120 points

Sorry, it didt paste the picture.
What I asked about the balun configuration T1 and T2 which are connected to DAC's output in the PDF DAC3XJ8XEVM-SCH_D.pdf.

0 Jim Brinkhurst1 over 8 years ago in reply to Ilya Michlin

TI__Mastermind 44680 points

Hi Ilya
We are looking into your question.
Someone will respond soon.
Best regards,
Jim B

0 Ilya Michlin over 8 years ago in reply to Jim Brinkhurst1

Prodigy 120 points

Thanks. I'm waiting for your reply.

0 jim s over 8 years ago in reply to Jim Brinkhurst1

TI__Guru* 91947 points

Ilya,

To reduce the capacitance for high frequency output signals, the balun was added to the board design. Depending on your output frequency, this part may not add any improvement in performance.

Regards,

Jim

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DAC38J82EVM: EVM balun configuration