The SBA-400M1400M-63DB-6B-SFF is a bidirectional switched bit attenuator operating from 400 to 1400 MHz that is designed to be switched between a low loss state and six fixed attenuation states. Attenuation range is 0 to 63 dB with 1 dB resolution. The settings are selected by six independent bit controls. Insertion loss is 6 dB, VSWR is 2:1, and switching speed is 80 ns or less. Harmonic suppression is up to -45 dBc, and the switching rate is 1 MHz/min. Control is provided via 6-bit TTL and supply requirements are +5 VDC at 200 mA and -12 VDC at 300 mA.