ANTI-DISTORTION CIRCUIT BY DESIGNING A MULTI-STAGE AUTO-GAIN CONTROL AMPLIFIER

摘要

1. TECHNICAL FIELD OF THE INVENTION;A digital microwave transmission device.;2. The technical problem to be solved by the invention;Distortion prevention circuit according to multi-stage automatic gain control amplifier design of digital wireless communication device is implemented.;3. Summary of Solution to Invention;The distortion prevention circuit of the present invention, which is used in the design of a multi-stage automatic gain control amplifier of a digital wireless communication device, detects the output voltage of the multistage automatic gain control amplifier which connects the automatic gain control amplifier in multiple stages, and the multistage automatic gain control amplifier. A differential distribution for differentially controlling gains of the respective automatic gain control amplifiers in the multi-stage automatic gain control amplifier by inputting a detector, a detection voltage amplifier for amplifying the detected voltage, and a voltage amplified by the detection voltage amplifier. It consists of a control circuit.;4. Important uses of the invention;Multistage Amplifier Design in Digital Microwave Transmission Equipment