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ADC3424: Single Differential conversion circuit

Mastermind 9515 points

Replies: 1

Views: 199

Part Number: ADC3424

Hello,

I would like you to confirm about below.

* According to user's guide of EVM, there is following description.

A dual transformer input circuit is used for better phase and amplitude balance of the input
signal than would typically be produced by a single transformer input circuit.

To obtain good phase and amplitude, TI recommend to use dual transformer. However, Tranformer is a little expensive. So, I think that we can use one better performance tranformer instead of dual tranformer.

If user use transformer with same spec as "ADT1-1WT", do you recommend dual transformer for user ?

(I'm not sure how user decide single or dual transformer..)

Best Regards,

  • Guru 66790 points

    Ryuuichi,

    If the transformer has very good phase and amplitude balance, the customer probably could use only one transformer. If this part has the same footprint as the ADT1-1WT, the user could install this in place of the first transformer on the ADC34xxEVM, then remove the second transformer and short out the pads to make a connection, then run a test to see if this part will work as is for their application.

    Regards,

    Jim

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