The ZVVA-3000 from Mini-Circuits is a USB controlled variable attenuator that operates from 20 MHz to 3 GHz. The Attenuator provides 18 to 50 dB of attenuation in 0.1 dB steps with glitchless transitions between states. It can handle an input power of up to 23 dBm. The attenuator is available in a module with SMA female connectors and is ideal for automated test equipment, gain control feedback circuits, signal level calibration and control systems applications. The attenuator can be controlled via USB or RS232 (via D-Sub connector).
