1. Home
  2. Electronics Design
  3. model the RF transformer

model the RF transformer

Hi,all I will sample a 46M IF signal with 20M bandwidth and fs=60M(yes,here is undersample) using AD9288. The schematics of AD9288 EVM

formatting link
use a RF transformer (ADT-1WT,
formatting link
to interface IF signal. I simulated the reference AD circuit in pspice to find the 3dB bandwidth, But now I can't go ahead becasuse don't know the inductance of the RF transformer, it seems it is very small (about 10+nH), is it possible? or can I get the spice model of the RF-transformer somewhere?

Reply to
WGNoise
Loading thread data ...

You need to know the mutual inductance and the leakage inductances. Either obtain that data from the manufacturer or measure them. The latter will not be easy at RF.

Most of the time toroid transformers can been seen as ideal transformers in an RF design unless you are near the lower or upper limits in frequency range. Allow for some losses.

Regards, Joerg

formatting link

Reply to
Joerg

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.