Hello colleagues,
I want to couple a 10,7Mhz ceramic filter with Zo = 330 ohm to AD8307 with Zi = 1,1Kohm differential, 1,4pF each to ground through a ferrite ring transformer Al = 40microH / 100sp. For each turn in the primary of the transformer I have to have 1.8 turns in the secondary. How do I calculate the number of turns at one of the windings for low losses in 180Khz? I attach the scheme, C1 = C2 = 100nF .