The HMC307QS16G from Analog Devices is a RF Variable Attenuator with Frequency 0 to 4 GHz, Attenuation Range 1 to 31 dB, Attenuation Step 31 dB, Power 0.39 W, P1dB 24 dBm. Tags: IC, Programmable, Digital. More details for HMC307QS16G can be seen below.