In most communications systems, the RF components used (transmitters, receivers, mixers, multipliers, attenuators, amplifiers, VCOs, phase-locked loops and so forth) may require specific power levels to run optimally. These power levels may differ from one component to the next in a system network and may require the attenuation level to be finely adjusted to account for changes in received signal levels, or to optimally match the input power into a sensitive circuit. Pasternack’s PIN diode-based VVAs provide accurate control and broadband flatness where the output level can be adjusted continuously by varying an analog voltage on the input control line. These VVAs are ideally suited for use with variable gain amplifiers, power level control, feed-forward amplifiers and automatic level control circuits.
The portfolio of VVAs from Pasternack includes six models covering octave broadband frequencies from 400 MHz to 18 GHz, while boasting low insertion loss and wide dynamic range. Moreover these modules display excellent VSWR over all attenuation levels. CW input power is rated up to +23 dBm. Each unit is designed in rugged coaxial packages to meet MIL-STD-202 environmental conditions.
Pasternack’s VVAs are in stock and ready to ship today.