When changing the attenuation setting in the HMC1119, does the attenuation momentarily go to maximum in both Direct Parallel Mode and Latched Parallel Mode, and what is the maximum duration of the glitch during transitions?

When the HMC1119 switches between attenuation states, the attenuation does not go to the maximum state for a short time. Instead, it transitions directly from the old attenuation state to the new attenuation state. During some transitions, there can be a small power glitch ranging from . For a major-carry transition, such as from 15 dB to 14.75 dB or vice versa, the glitch is approximately 0.64 dB, and the total transition time is about 500 ns. The datasheet specifies a tRISE and tFALL of 60 ns typical, which is the time from 10% to 90% of the transition. The 500 ns transition time may be observed during full-range transitions from minimum to maximum attenuation or vice versa. The 60 ns value in the datasheet is likely an average, with the fastest rise and fall times occurring when a single internal attenuator is switched, and the slowest times during major-carry or full-range transitions.