Multichip VGA Aids Cellular Applications

摘要

Variable-gain amplifiers (VGAs) help control amplitude levels in cellular transceivers while simplifying system design. Essentially, they replace at least two components: an amplifier and a voltage-variable attenuator (WA). In the case of the model MAAM-009320 VGA from M/A-COM Technology Solutions, the goal was to develop a VGA with sufficient bandwidth to cover all cellular frequency bands, including Long Term Evolution (LTE).