Dear Mr or Mrs,
I am working on a project, where I need to propagate power through a Deserializer-Serializer channel (DS90UB954 and DS90UB953A).
In the datasheet of the serializer I find this sentence:
Table 8-1 lists essential components for this particular PoC network. Note that the impedance characteristic of
the ferrite beads deviates with the bias current. Therefore, keeping the current going through the network below
150 mA is recommended.
I do not understand if 150mA is a physical limit of the filter (regardless of the component choice) or if it is related to suggested components. In addition, I was wondering if there is a current limit due to the cable I use.
The board where I have the serializer has a power consumption of about 2.5W, so to keep power below 150mA I would need to propagate at least 17V DC through the cable.
Can I properly select components to use a 12V instead (about 0.21 mA DC through the cable)?
I still have the choice to select a twisted shilded pair or a coaxial cable. What do you suggest me? is there any advance in using one or the other?
Thank you in advance for your help.
I do not understand if 150mA is a physical limit of the filter (regardless of the component choice) or if it is related to suggested components. In addition, I was wondering if there is a current limit due to the cable I use.
The board where I have the serializer has a power consumption of about 2.5W, so to keep power below 150mA I would need to propagate at least 17V DC through the cable.
Can I properly select components to use a 12V instead (about 0.21 mA DC through the cable)?
I still have the choice to select a twisted shilded pair or a coaxial cable. What do you suggest me? is there any advance in using one or the other?
Thank you in advance for your help.
Best regards,
Alessandro
