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About LT1328 C4(Filter) capacitor

Question asked by Yuya on Apr 17, 2018
Latest reply on Apr 18, 2018 by Yuya

Hi,

My customers are considering LT1328.
I got a question there.

 

It seems that there was a case where it was not possible to communicate in FIR mode in case of short distance (about 1 cm).

Therefore, when changing from C4 (capacitor of data sheet block diagram Pin 2) at 470 pF to 2.2 μF, communication became possible.

 

#1  Are there any concerns when using a C4 capacitor at 2.2 uF?

  (Except that the bandwidth of the high pass filter is expanded)

 

Best Regards,

Yuya

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