From 5d1cff57f9f5acd740a8b5f8c941beefdcc00176 Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Sun, 28 Jun 2020 16:42:21 +0200 Subject: sw: configure si5351 --- README.md | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'README.md') diff --git a/README.md b/README.md index 4ad6a71..4a453e1 100644 --- a/README.md +++ b/README.md @@ -32,9 +32,12 @@ TODO before ordering the PCB * Si5153 * Check desired frequencies can be achieved: - * LO1 = 28 - 4.9152 + VFO - * BFO = 4.91521 - * VHF-LO = 144 + 28 and 144 - 28 + * clk0: LO1 = 28 - 4.9152 + VFO + * clk1: VHF-LO = 144 + 28 and 144 - 28 + * clk2: BFO = 4.91521 + * See `freqplan.py` + * If not, generate LO1 and BFO with Si5153, and connect an external LO to the VHF LO u.FL + * No 116MHz crystals on mouser, but 114.285MHz are available, HF bandpass filters recalculated. PCB Assembly Plan ================= -- cgit v1.2.3