Figure 3-1 Simple radio receiver block diagram.
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Transcript of Figure 3-1 Simple radio receiver block diagram.
![Page 1: Figure 3-1 Simple radio receiver block diagram.](https://reader035.fdocuments.in/reader035/viewer/2022062314/56813079550346895d96562b/html5/thumbnails/1.jpg)
Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-1 Simple radio receiver block diagram.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-2 Nonlinear device used as a detector.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-3 Diode detector.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-4 Diode detector component considerations. Dashed lines indicate average voltage during pulse.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-5(a) A synchronous AM detector circuit as implemented in Electronics WorkbenchTM Multisim.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-5(b) The waveforms obtained from TP1 and TP2 for the synchronous AM detector provided in Figure 3-5(a).
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-6 Superheterodyne receiver block diagram.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-7 Frequency conversion process.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-8 Frequency conversion.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-9 Variable ganged capacitor.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-10 Tracking considerations.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-11 Varactor diode symbols and C/V characteristic.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-12 Broadcast-band AM receiver front end with electronic tuning.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-13 Image frequency illustration.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-14 Image frequency not a problem.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-15 Dual-gate MOSFET RF amplifier.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-16 Typical mixer circuits.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-17 Typical IF amplifiers.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-17 (continued) Typical IF amplifiers.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-17 (continued) Typical IF amplifiers.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-18 Development of AGC voltage.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-19 AGC circuit illustration.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-20 Wide-range IF/AGC amplifier. (Reprinted with permission from Electronic Design, Penton Publishing Company.)
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-21 AM broadcast superheterodyne receiver.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-22 TDA1572T AM receiver. (Courtesy of Philips Semiconductors.)
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-23 AM stereo block diagram.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-24 Phase relationships in AM stereo.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-25 C-Quam receiver system. (Courtesy of Motorola, Inc.)
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-26 Receiver block diagram.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-27 Troubleshooting a self-excited mixer.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-28 Regulated power supply.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-29 Bridge rectifier and filter operating properly.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-30 Ripple increase caused by open diode.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-31 Testing an audio amplifier.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-32 An AM diode detector circuit as implemented with Electronics WorkbenchTM Multisim.
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Modern Electronic Communication 9th editionJeffrey S. Beasley and Gary M. Miller
Copyright ©2008 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.
Figure 3-33 Oscilloscope output traces from the diode detector.