SAW filter-driven amplification stage to reduce gain variation between channels

摘要

the design of the filter with the television SAW received only about.in particular, field effect transistor (FET: feild effect transister) using the tuner of the AGC from a signal based on the signal of the channel between the IF gain control signal, the supply of SAW filter allows the channel to reduce the gain deviation between the SAW pen the drive amplifying stage about the...radio transmission from the radio signal by the user on the channel of the signal line in order to produce intermediate frequency signal is tuned, the following can be received from a SAW filter with the output signal is not the high frequency component of the answer. it is SAW filter equipped with a tv imaging device, the second terminal of the FET is the tuner of a AGC from a signal output interface.the drain terminal as the output can be tuned from IF signal interface. the second is through the input line to the signal according to the signal of the channel between the IF gain adjustment, the channel gain between the small section of the IF signal SAW filter output the SAW filter. the amplification stage, including the characteristics of the area.