Mixed mode antenna amplifier circuit

Published:2011/5/30 2:47:00 Author:Christina | Keyword: Mixed mode, antenna amplifier | From:SeekIC

The amplification-mix mode antenna amplifier circuit is as shown in figure 1. The 1 to 12 channels TV signal is input from the VHF input port, the simple low-pass filter is composed of the L1, C1 and L2, the TV signal (filtered the channel 12) is delivered to the IC1 signal input port to accept the 20dB amplification, then the amplified TV signal is output through the capacitance C3, at last it is mixed with the UHF signal by the L3, C4, L4 low-pass filters, then it is delivered to the TV signal output port. Figure: Mixed mode antenna amplifier circuit The simple high-pass filter is composed of the C5, L5 and C6, it only allows the 13 channel and the raer channels of UHF band to get through.



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