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- 最近打卡:2025-11-12 06:39:47
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发表于 2025-11-12 06:39:47
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Nice to see crystal X1, however that is only 32.768kHz, no support for 8-48MHz clocks or TCXO ?
There is room on PCB back side for active CMOS oscillator footprint (2520/3225?) at least and an optional series capacitor would support clipped-sine crystal oscillators.
Also P1.6, P1.7 need isolation jumpers when X1 is fitted, the very long traces on P1.6,P1.7 will compromise the XTAL oscillator.
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