The HMC1019 from Analog Devices is a RF Variable Attenuator with Frequency 100 MHz to 30 GHz, Attenuation Range 3 to 34 dB, Attenuation Step 0.5 dB, Power 0.50 W, P1dB 27 dBm. Tags: IC, Programmable, Digital. More details for HMC1019 can be seen below.