V23839-R35-L55 Datasheet, PDF (21/34 Pages) Infineon Technologies AG – iSFF - Intelligent Small Form Factor 1.25 Gigabit Ethernet 4.25/2.125/1.0625 Gbit/s Fibre Channel Multimode 850 nm Transceiver with LC™ Connector

V23839-R3x-L55
Application Notes
The return path of RF current must also be considered. Thus a split ground plane
between Tx and Rx paths may result in severe EMI problems irrespective of which
module ground concept has been applied.
The bezel opening for a transceiver should be sized so that all contact springs of the
transceiver make good electrical contact with the face plate. Please consider that the
PCB may behave like a dielectric waveguide. With a dielectric constant of 4, the
wavelength of the harmonics inside the PCB will be half of that in free space. Thus even
the smallest PCBs may have unexpected resonances.
Preliminary Product Information
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2004-06-25