The MM5505 from Miller MMIC is a RF Variable Attenuator with Frequency DC to 20 GHz, Attenuation Range 0.5 to 31.5 dB, Attenuation Accuracy ±0.5 dB, P1dB 24 dBm, Insertion Loss 3 to 4 dB. Tags: Die, Digital. More details for MM5505 can be seen below.