The TLDA0.1G4G-95.25-USB is an broadband digitally controlled electrical attenuator operating from 0.1 to 4 GHz. The attenuator exhibits 7 dB typical insertion loss and offers 95.25 dB nominal attenuation control range in 0.25 dB step . The control speed of the attenuator is typically 3 ms. The RF input and output ports are female SMA female coax connectors, and a USB interface port is employed for providing the control signal and DC bias.