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Update page 'Si5351'

Sebastian 2018-07-06 23:22:07 +00:00
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Si5351.md

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# Frequenz setzen
`f_out = f_xtal * p * m * 1/r`
`f_out = f_xtal * p * 1/m * 1/r`
* **p** PLL-Faktor, zwischen 15 und 90
* **m** Multisynth-Faktor, zwischen 6 und 1800
* **r** Output-Teiler `r = 2 ^ n` für 0 <= n <= 7
Beispiel Code:
https://radiotransmitter.wordpress.com/2017/02/23/a-simple-software-to-control-the-si5351a-generator-chip/
https://radiotransmitter.wordpress.com/2017/02/23/a-simple-software-to-control-the-si5351a-generator-chip/
# Register berechnen
Application Note:
https://www.silabs.com/documents/public/application-notes/AN619.pdf
Für `a + b/c = m`:
```
MSNx_P1 = 128 * a + floor(128 * b/c) + 512
MSNx_P2 = 128 * b - c * floor(128 * b/c)
MSNx_P3 = c
```