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@KlausST: Thanks for the reply.
I do not fully understand your answer. I believe the reliability of the LVDS lines is limited when the voltages are between + 100 mV (w.r.t. the offset). Is this the same problem that you refer to in your answer. Or do you refer to any other issue?
I am looking...
I want to use a pair of LVDS line to drive a single ended control line. The control line is used just to enable/disable an IC.
Enable is when driven above 2V, ideally 3.3 V.
I understand that LVDS has a current output and also needs a DC termination in this case. I was thinking of parallel...
Hello,
On a RF PCB (operation freq. : 6-8 GHz)with the stack up details as below, is there any precaution to be taken while routing RF CPWG vis-a-vis a 2 layer RF PCB, especially w.r.t. Cu that is present below all the RF traces in the layers below the top layer (particularly input and output...
Hello,
I have 4 separate grounds on my RF boards. The board overall has only one shield isolating it from another board which is the main purpose. My question is whether to connect the shield tabs to the chassis ground or to extend the input ground of the board and then use it for shield can...
Thank you everyone for your patient replies.
@jiripolivka: My PCB has multiple frequency bands spread over it and the shields are to reduce leakage.
@biff44 : Thanks for your explanation about the purpose of the absorber inside the structure.
However, shouldn't the sheet have a good return...
Hello,
I am looking for RF absorber shields for my PCB and have come across:
RF Absorber Shields
For a clearer understanding, if my board is operating at say 600 MHz-800 MHz, can I use PS800EMC24 from the catalog? It's peak attenuation is at 800 MHz, so, it should absorb any radiated...
Thanks a ton for the replies.
At the end of another search after reading the replies, I have come across the following:
http://www.ferroxcube.com/prod/assets/MLP.htm[/URL
https://www.ferroxcube.com/prod/assets/MLS.htm...
Hello,
Looking at the ferrite beads that I could find, a few questions:
1. Are ferrite beads used a chokes at high freq. like 4 GHz and above i.e. are they available at all at that frequency?
2. If not, then when chip inductors are used as RF chokes at higher freq., most manufacturers do not...
Thanks for the suggestions.
I have simulated using the S-Parameters mentioned on the website.
The simulated gain is in the region of 11-12 dB.
Also, will change the coupling capacitors on board and measure again. However, have a small doubt regarding the same. I am currently using 100 pF...
Thanks for the replies.
I have re-measured as per the suggestions given including the cable losses as well.
The information is as follows:
1. I am operating between 4-5 GHz. I have 100 pF as input and output blocking capacitors.
2. The supply bypass capacitors used are: 0.1 uF, 1000 pF...
Hello godfreyl...thank you for the reply.
I am using am amplifier IC, not a discrete transistor. The datasheet does not mention the class of operation. It only mentions the input voltage recommended at 5V and the current drawn would be about 80 mA. In this case then, can I safely assume that...
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