Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Chapter 8, Problem 8.7TYU
(a)
To determine
The design for
(b)
To determine
The average power delivered to the load, the average power dissipated in the transistor and the power conversion efficiency.
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(b) Amplifier “A" has gain 30DB and noise figure 3.7 dB at the frequency
of interest. Amplifier “B" has gain 20 dB and noise figure 8.4 dB at the
same frequency. Input and output impedances are 50 Q throughout.
I.
When used in cascade, what is the combined noise figure?
From the answer obtained for question 1(b) i, what can you
say about the combined noise figure when compared to the
large noise figure given in second stage?
I.
8.28 Design an inverting summing amplifier to obtain
the following weighted sum of four different signal
sources:
Vout = -(2 sin wit + 4 sin wzt+ 8 sin wzt+ 16 sin wt)
Assume that Rp = 5 k2, and determine the required
source resistors.
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Chapter 8 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 8 - Prob. 8.1EPCh. 8 - Prob. 8.2EPCh. 8 - Prob. 8.3EPCh. 8 - Prob. 8.1TYUCh. 8 - Prob. 8.2TYUCh. 8 - Prob. 8.3TYUCh. 8 - Prob. 8.4EPCh. 8 - Prob. 8.5EPCh. 8 - Prob. 8.7EPCh. 8 - Prob. 8.4TYU
Ch. 8 - Prob. 8.5TYUCh. 8 - Prob. 8.6TYUCh. 8 - A transformercoupled emitterfollower amplifier is...Ch. 8 - Prob. 8.7TYUCh. 8 - Prob. 8.9EPCh. 8 - Prob. 8.11EPCh. 8 - Consider the classAB output stage shown in Figure...Ch. 8 - From Figure 8.36, show that the overall current...Ch. 8 - Prob. 1RQCh. 8 - Describe the safe operating area for a transistor.Ch. 8 - Why is an interdigitated structure typically used...Ch. 8 - Discuss the role of thermal resistance between...Ch. 8 - Define and describe the power derating curve for a...Ch. 8 - Define power conversion efficiency for an output...Ch. 8 - Prob. 7RQCh. 8 - Describe the operation of an ideal classB output...Ch. 8 - Discuss crossover distortion.Ch. 8 - What is meant by harmonic distortion?Ch. 8 - Describe the operation of a classAB output stage...Ch. 8 - Describe the operation of a transformercoupled...Ch. 8 - Prob. 13RQCh. 8 - Sketch a classAB complementary MOSFET pushpull...Ch. 8 - What are the advantages of a Darlington pair...Ch. 8 - Sketch a twotransistor configuration using npn and...Ch. 8 - Prob. 8.1PCh. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Prob. 8.4PCh. 8 - Prob. 8.5PCh. 8 - Prob. D8.6PCh. 8 - A particular transistor is rated for a maximum...Ch. 8 - Prob. 8.8PCh. 8 - For a power MOSFET, devcase=1.5C/W , snkamb=2.8C/W...Ch. 8 - Prob. 8.10PCh. 8 - The quiescent collector current in a BiT is ICQ=3A...Ch. 8 - Prob. 8.12PCh. 8 - Prob. 8.13PCh. 8 - Prob. 8.14PCh. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - Consider the classA sourcefollower circuit shown...Ch. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Prob. 8.20PCh. 8 - Prob. 8.21PCh. 8 - Consider an idealized classB output stage shown in...Ch. 8 - Consider an idealized classB output stage shown in...Ch. 8 - Prob. 8.24PCh. 8 - For the classB output stage shown in Figure P8.24,...Ch. 8 - Prob. 8.26PCh. 8 - Prob. 8.27PCh. 8 - Consider the classAB output stage in Figure P8.28....Ch. 8 - Prob. 8.29PCh. 8 - Prob. D8.30PCh. 8 - Prob. 8.31PCh. 8 - Prob. D8.32PCh. 8 - Consider the transformercoupled commonemitter...Ch. 8 - The parameters for the transformercoupled...Ch. 8 - A BJT emitter follower is coupled to a load with...Ch. 8 - Consider the transformercoupled emitter follower...Ch. 8 - A classA transformer-coupled emitter follower must...Ch. 8 - Repeat Problem 8.36 if the primary side of the...Ch. 8 - Consider the circuit in Figure 8.31. The circuit...Ch. 8 - Prob. D8.40PCh. 8 - The value of IBiass in the circuit shown in Figure...Ch. 8 - The transistors in the output stage in Figure 8.34...Ch. 8 - Consider the circuit in Figure 8.34. The supply...Ch. 8 - Prob. 8.44PCh. 8 - Prob. 8.45PCh. 8 - Consider the classAB MOSFET output stage shown in...Ch. 8 - Prob. 8.47PCh. 8 - Consider the classAB output stage in Figure P8.48....Ch. 8 - For the classAB output stage in Figure 8.36, the...
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- Using your own words and without any formula, explain: a- How we deal with the capacitors and DC voltage source when we conduct the AC analysis of an amplifier b- What is the meaning of having a negative voltage gain (for example Av= -20 )[arrow_forwardFor the BJT circuit shown below, sketch the hybrid equivalent model circuit with labels of voltages, impedances, and currents. ... 1.8k0 Vo 39ka 22ko tuF-POL 10UF-POL 1200 1uF-POL 2N2221 100mv 1.5KHZ ODegarrow_forwardDraw the DC and AC load line for a transistor amplifier circuit shown in Figure, also describe the optimum operating Point for the given values as follows: Rc = 10 KQ ; RL=20 KQ and V cc = 20 V +Vcc Ic Rc Cc Cc V. out R1 Vin wwwarrow_forward
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