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control voltage ripple low, preferably under 10mVpp once the control voltage has attained its quiescent value. For this reason, capacitor values of at least 0.47pF are recommended. The AGC control voltage is carefully managed on-chip to allow duty-cycle operation of the MICRF009. When the device is placed into shutdown mode (SHUT pin is pulled high), the AGC capacitor floats to retain the voltage. When operation is resumed, only the voltage droop due to capacitor leakage must be replenished. A relatively low- leakage capacitor is recommended when the devices are used in duty-cycled operation.
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