The MM5507 from Miller MMIC is a RF Variable Attenuator with Frequency DC to 20 GHz, Attenuation Range 19.8 to 20.2 dB, Attenuation Accuracy ±0.2 dB, P1dB 24 dBm, Insertion Loss 1.2 to 1.4 dB. Tags: Die, Digital. More details for MM5507 can be seen below.