Hi all, I have a question regarding the HMC713MS8E logarithmic detector. I want to use it as a power detector from 800MHz to 2000MHz.
The datasheet shows a power up timming diagram with the relationship between Vcc and the voltage on the Enable pin to ensure a proper power up.
What does this mean? What are the effects of connect the Enable pin to VCC through an resistor?
I don't intent to use the power down function of the detector, I want to keep it always enable.
Thank you and hope you are doing well in this hard times
The HMC713MS8E does indeed require the power-up sequencing as shown to ensure proper startup under all possible operating conditions. The sequencing can be achieved many ways: Perhaps if there is a microcontroller in your system, the MCU can generate the EN signal. Or a dedicated comparator IC with hysteresis can provide a simple solution.
Another choice is to use HMC713LC3E, which does not have this power sequencing requirement.
Hope that helps. #STAYWELL
Thank you very much
You mean HMC713LP3E right?
Yes, that's right. HMC713LP3E. Sorry about that.