I am trying to select ferrite beads for the serializer circuit based on Figure 18 (typical connection diagram STP) in the SNLS605 data sheet.
Figure 18 specifies the use of beads with 1 kOhm impedance @ 100 MHz, and 0.025 Ohm impedance @ DC, for all three beads (FB1-3)
These specs are quite difficult to satisfy, as 1 kOhm is about as big as they get @ 100 MHz, and 0.025 Ohms is about as small as a DCR can be for ferrite beads. Thus no components on Digikey or Mouser match those specs.
Is it possible that FB1, 2, and 3 each require different specs individually, and those specs are less strict?
Please do let me know. Thanks.
Regards,
Sam
