A vertical input goes to a frequency-compensated step attenuator to reduce large signals to prevent overload.
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San Diego-based Peregrine Semiconductor has used silicon on sapphire ( SOS ) technology to develop RF integrated circuits ( RFICs ) including RF switches, digital step attenuators ( DSAs ), phase locked-loop ( PLL ) frequency synthesizers, prescalers, mixers / upconverters, and variable-gain amplifiers.
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