RF2155 programmable plus power amplifier pin circuit

Published:2011/10/23 22:50:00 Author:May | Keyword: programmable, plus, power amplifier | From:SeekIC

RF2155 is the programmable plus amplifier IC, and it is used in 3V handheld systems. It uses advanced GaAs heterojunction bipolar transistor (HBT), and it is designed for final linear RF amplification of analog cellular telephone system transmitter or applications with ISM working frequency 915MHz. Except outside match network, device itself includes power supply line. The two bits digital controlling offers 4 levels of power with 8dB per step. The pin array of RF2155 is shown in the diagram.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/RF2155_programmable_plus_power_amplifier_pin_circuit.html

Print this Page | Comments | Reading(3)