VCAs Walk The Straight And Narrow

The RFSA3013 and RFSA3023 fully monolithic analog voltage-controlled attenuators (VCAs) featuring exceptional linearity over a 30dB minimum gain control range. They include internal temperature compensation that provides an attenuation profile highly insensitive to temperature changes. Each VCA is controlled by a single positive control voltage with on-chip DC conditioning circuitry. The slope of the control voltage versus gain is selectable. Additionally, the VCAs have been characterized for 75Ω CATV applications over the full attenuation and frequency ranges with no external matching components required. Available in 3 mm x 3 mm QFN packages, pricing begins at $3.94 each/100. RF MICRO DEVICES INC., Greensboro, NC. (336) 664-1233.