The RFSA2113 from Qorvo is an analog voltage controlled attenuator (VCA) that operates from 50 MHz to 18 GHz. It features excellent linearity over a typical temperature compensated 30 dB attenuation range. This attenuator incorporates a revolutionary new circuit architecture which enable it to have a high IP3, high attenuation range, low DC current, broad bandwidth and temperature compensated linear in dB control voltage characteristic. This voltage controlled attenuator is controlled by a single positive control voltage with on chip DC conditioning circuitry. The slope polarity of the control voltage versus gain is selectable. It requires a supply of 3V to 5V while drawing very low 2mA current. It is available in compact MCM package that measures 3.2 x 3.2 mm. The attenuator can be used in point to point radio, test instrumentation, microwave radio and high linearity power control applications.
