CHAPTER 4 RF/IF CIRCUITS
RF/IF CIRCUITS . CHAPTER 4 RF/IF CIRCUITS . INTRODUCTION SECTION : MIXERS THE IDEAL MIXER DIODE-RING MIXER BASIC OPERATION OF THE ACTIVE MIXER REFERENCES SECTION : MODULATORS SECTION : ANALOG MULTIPLIERS REFERENCES SECTION : LOGARITHMIC AMPLIFIERS REFERENCES SECTION : TRUE-POWER DETECTORS SECTION : VARIABLE GAIN AMPLIFIER VOLTAGE CONTROLLED AMPLIFIERS X-AMPS DIGITALLY CONTROLLED VGAs REFERENCES SECTION : DIRECT DIGITAL SYNTHESIS DDS ALIASING IN DDS SYTEMS DDS SYSTEMS AS ADC CLOCK DRIVERS AMPLITUDE MODULATION IN A DDS SYSTEM SPURIOUS FREE DYNAMIC RANGE CONSIDERATIONS REFERENCES SECTION : PHASE-LOCKED LOOPS PLL SYNTHESIZER BASIC BUILDING BLOCKS THE REFERENCE COUNTER THE FEEDBACK COUNTER, N FRACTIONAL-N SYNTHESIZERS NOISE IN OSCILLATOR SYSTEMS PHASE NOISE IN VOLTAGE-CONTROLLED OSCILLATORS LEESON'S EQUATION CLOSING THE LOOP PHASE NOISE MEASUREMENTS REFERENCE SPURS CHARGE PUMP LEAKAGE CURRENTS BASIC LINEAR design .
BASIC LINEAR DESIGN 4.2 The basic concept of operation is as follows. For the receiver, the signal from the antenna is amplified in the radio frequency (RF) stage.
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