Other Parts Discussed in Thread: ADS4149,
The driving circuit on the ADS4149EVM contains two back-to-back transformers as recommended in the ads4149 datasheet. Looking at the schematic, the input drives the first transformer's (T1) secondary coil, with the center tap connected to ground through a capacitor (C33), rather than driving the primary coil. Is there a particular reason for this? Also it appears T1, T2, and T5 have been removed from their package (as opposed to T4) and soldered directly to the board - is that correct? If so, is that to reduce parasitics?
Thanks,
Elliot