Hello,
We are using the switch with part number ADRF5024 in a project, but we are having big problems while using it and so far 4 switches have unfortunately broken down and become unusable.
The way we use ADRF5024 in our circuit is as follows.
1.As stated on page 10 of the datasheet (RevD), the ideal power-up sequence is followed, first VDD 10ms and then VSS is switched on.
2.CTRL (0 to +3.3V) signal first passes through a Voltage level Translator and then through a series 1k resistor.
3.Finally RF signal is given.
However, after a while, all switches broke down and started to react as follows.
When we switch the CTRL signal to the high position (+3.3V), it switches to RF1, but when we pull it to the low position (0V), it does not switch to RF2 and behaves like in isolation.
CTRL signals are under over voltage and negative voltage protection with Voltage Level Translator. We verified that this was not the case during our tests.
Likewise, VDD and VSS voltages were also tested and verified.
What kind of problem could we be encountering in the above circuit? We ask for your urgent support in solving this problem.
Best Regards,
Adem