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9-6: Typical Receiver Circuits
Integrated Circuits (ICs) in Receivers
IC receivers are typically broken down into three major sections:
The tuner, with RF amplifier, mixer, and local oscillator
The IF section, with amplifiers, demodulator, and AGC and muting circuits
The audio power amplifier.
The second and third sections are entirely implemented with ICs. The tuner may or may not be, for often the LNA is separate.