OSC2 and OSC4 misleading schematic

OSC2 and OSC4 refer to the same component mounted on the PCB, wouldn't be better to delete OSC4 and just change the OSC2 partnumber for each variant?

I placed two components instead of using variants because of OE pin: it is the first pin for 549 and the second for 570

The Si549 have different configurations for pins 1 and 2 depending on the partnumber anyway.

I think it would be better to just place one Si549, add a text note explaining the semantics of the OE/NC pins and change the partnumber for each variant.

As I mentioned here: #167 (closed), it's little too complicated. As @augustofg said, I'd leave one oscillator with OE connected to 1st and 2nd pin (by 0R) and 1st connected to DAC. I'd skip SI57X_SEC_TUNE/SYNC signal and leave just OE. Not sure if PLL_DAC1_SYNC_N is needed.

Schematics proposition:

mentioned in issue #188 (closed)

closed