HMC1122 digital step attenuator - settling time is 250ns. I would like to know switching control frequency - the max rate at which attenuator control word can be given.
The minimum serial clock period is specified to be 70ns in table 2 of datasheet, so max clock frequency is 14 MHz.
Also minimum spacing between two LE pulses is specified to be 630ns which longer than the settling time.
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