Questions tagged [si5351]
The si5351 tag has no summary.
6 questions
0
votes
1
answer
84
views
Si5351 CLK1 is inverted but according to configuration it should not
I'm configuring a Si5351 board, with both Multisynth0 and Multisynth1 driven by PLLA.
Then I wrote in registry 16 (CLK0 control) ...
- 1,163
0
votes
1
answer
149
views
Si5351 Constraints I don't understand
I'm following this tutorial on si5351, with the goal to generate variable frequency range (eventually with two clocks in quadrature).
Anyway the tutorial is quite interesting, but it give some ...
- 1,163
1
vote
2
answers
172
views
Si5351 syncing two clocks
I'm experimenting with Si5351, programming it from an Esp32-s2 board.
My final goal, is to change frequency while keeping a deterministic phase (eventually, quadrature) between two clocks. So fi first ...
- 1,163
0
votes
0
answers
514
views
Reliability issues with si5351 when generating two clocks with a phase difference of 90 degree
I am trying to generate two clocks of X-MHz each, X being a value ranging from 5 to 100. I chose si5351 chip for this as a breakout board was easily available from Adafruit. I used attached code to ...
- 107
0
votes
2
answers
647
views
Is it possible to use Si5351 to replace a crystal oscillator on a computer?
I have an old Macintosh IIfx and it originally runs with 80 MHz DIP-4 crystal oscillator (CPU speed is half of this, so 40MHz). So far I have used 100 MHz crystal oscillator to overclock without ...
- 1,067
1
vote
1
answer
118
views
Si5350 Driven by MEMS oscillator
I'd like to drive an Si5350 with a MEMS oscillator instead of a crystal for environmental robustness purposes. The Si5350 FAQ says that a CMOS input may be used instead of a crystal so long as the ...
- 73