On the HMC928, I want to use 25 MHz modulation on a 2.4 GHz carrier.
Will it work? About a volt swing, very low modulation index.
Although HMC928 will not die with 25 MHz modulation BW, it is spec`d up to 20 MHz. We have not characterized the part @ 25 MHz modulation BW.
Mod BW depends on the architecture of VCTL and its driver.
The internal circuit of Vctrl pin is given at the pin description section of the DS. In order to see how VCTL circuitry responds to the driver that is being used to drive that pin, VCTL pin circuitry and the driver circuitry can be simulated further.
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