The MM5506 from Miller MMIC is a RF Variable Attenuator with Frequency DC to 20 GHz, Attenuation Range 9.8 to 10.2 dB, Attenuation Accuracy ±0.2 dB, P1dB 24 dBm, Insertion Loss 1.2 to 1.4 dB. Tags: Die, Digital. More details for MM5506 can be seen below.