5 Amplifier Families: Basic Characteristics By Ashraf Elghamrawi, Analog Devices, Inc.
The amplifier is one of the most versatile building blocks used in RF/IF signal chains today. Throughout a transceiver RF amplifiers are required to increase signal strength. In the receiver these devices amplify faint incoming signals, and in the transmitter they increase signal strength as it approaches the final power amplifier stages. Since these losses occur across the RF/IF signal chain, Analog Devices has developed five families of amplifiers tailored to the needs of each particular radio section.
Oscillator manufacturers and engineers who frequently need to evaluate the performance of ultra-low phase noise oscillators, at some point, recognize that their phase noise test systems could be primarily improved in three aspects.
The Apollo Series from the Olympian OCVCXO Family is a high frequency range product specifically designed for applications requiring superior noise performance out to a 100-KHz offset. It is ideal for phase-locked microwave signal sources such as DROs, low noise test equipment, microwave com-systems, and radar applications.