The HMC424LP3 from Analog Devices is a RF Variable Attenuator with Frequency 0 to 13 GHz, Attenuation Range 0.5 to 31.5 dB, Attenuation Step 31.5 dB, Power 0.31 W, P1dB 22 dBm. Tags: IC, Programmable, Digital. More details for HMC424LP3 can be seen below.