RECEIVER_IF_AMPLIFIER

Published:2009/7/17 2:46:00 Author:Jessie | From:SeekIC

T1 is tuned to converter-output frequency U1 to provide 45-to-50-dB gain, depending on the design of T1 and T2. C2, C3, C4, CS, and C6 are bypass capacitors. R5 is a bias resistor. Gain is set by R1, which controls the voltage on pin 5 of U1. T1 and T2 should provide source and load impedance of 1-kΩ and 3-to 10 kΩ, respectively. R3 supplies dc bias to other stages, if required.



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