[Open_electroporator] pyflex_f401 v0.5 --> v0.6 testing

John Griessen john at cibolo.com
Fri Mar 30 01:37:08 UTC 2018


Here's the crystal oscillating as perceived via a Tektronix P6201 active FET probe that
adds 1.5pF extra loading on the crystal amp out terminal. There are 2 7pF caps adjacent to the
Epson FA-20H 2.5mm x 2.0mm crystal surrounded by a moat of zero volts metal.  Probably radiating a little
since 16MHz speed --> 62.5 ns period does launch some waves.  Only 0.4V tall though.

Later when FCC testing for lab equip, and for computer office gear standard, this probably won't need
a tin box soldered over it.


https://www.cibolo.com/docs/pyflex_f401_crystal_osc.jpg
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pyflex_f401_crystal_osc-sm.jpg
Type: image/jpeg
Size: 300393 bytes
Desc: not available
URL: <http://cibolo.us/pipermail/open_electroporator/attachments/20180329/2fa24cca/attachment-0001.jpg>


More information about the open_electroporator mailing list