Hi, I would like to use HMC574A.
So, I have a question. Please help me.
Can you tell me the propagation delay of the HMC574A?
I am trying to switch high frequency signals using the HMC574A.The signal frequency is about DC to 30MHz, and the pulse wave(High side：5V) is input to HMC574A.
I would like to select whether to pass RF1 or RF2 with the control signal of pins 1 and 2 (A, B),
but I want to pass a pulse immediately after applying this control signal.
As a time, a pulse wave is applied within 200ns.
However, if a pulse wave is applied immediately after the control signal is applied,The pulse signal attenuates (RF1 to RFC), and even if a 5V pulse wave is applied as shown below, it will attenuate to ~ 1V.
Is this due to the characteristics of HMC574A?I think the propagation delay is suspicious, can you give me your opinion?
This is your duplicated post. Refer to the link below.
"The HMC574A cannot be used to carry DC pulse waveform. The…
"The HMC574A cannot be used to carry DC pulse waveform. The RF ports are internally biased close to high control voltage (i.e. 5V) so the part requires DC blocking capacitors that will prevent the operation at DC."