I have been looking into the issue of using all 3 clock outputs of the
si5351. The crosstalk is caused by all 3 output clocks on the same chip
substrate. Using analog amplifiers and balun transformers just amplifies
the cross talk. I want to try some digital circuitry to try and reduce
it. Just ordered some NC7SZ04M5X single channel UHS inverters.
Hopefully with having a separate inverter as a buffer for each clock I
can eliminate most of the crosstalk. As for the DBM, if you use some of
the SMD diode pairs you can improve matching and reduce size. Also
switch to Schottky diodes instead of the silicon 4148s I see in many
designs will reduce the amount of drive needed for the DBM The SBL1 and
ADE1 DBM use Schottky diodes Should not bee too hard to layout a small
board with the SBl-1 footprint that you can build a homebrew DBM and
just plug it in the same board location
DuWayne
KV4QB.blogspot.com
On 6/1/2016 6:45 PM, Ben Aupperlee wrote:
Hello Ashhar,
I had some exchange of idears about SMD and modules, so here a new
version with a new drawing, the old .gif is also used in this temp.htm text.
Regards Ben PA9B (in Turkije)
