The A0P-39N-0JA from GT Microwave is a Digitally Controlled PIN Diode Attenuator that operates from 0.5 to 2.0 GHz. It provides 80 dB of attenuation in 0.078 dB steps and is controlled via 10-bit TTL compatible binary logic. This attenuator can handle an input power of -5 dBm (CW) or 1 W (Max.) and has an insertion loss of 4.5 dB. It is available in a package that measures 3 x 2.5 x 0.75 inches.