what is the switching speed, by using DISABLE function?
what are advantages/disadvantages of using HIGH POWER mode?
The propagation delay of the 'Disable' function of the HMC363 (die) is 600pS.
The advantages / disadvantages of any function depend on your application. The flexibility itself is an advantage as it eliminates the need for additional components or circuitry. For instance, if you need higher output power to drive the input of another divider you select the high power mode. Perhaps low power mode provides a more optimal drive level at the RF input to a PLL, this is available too. High power mode consumes a nominal 92mA while low power consumes about 70mA so use the low power mode to conserve current if you don't really need the extra power.
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