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A certain cascaded amplifier arrangement has the following voltage gains: Av1 = 22, Av2 = 0.5, Av3 = 0.11 and Av4 = 50. What is the overall voltage gain? Express each gain in decides (dB) and determine the total voltage gain in dB.

A certain cascaded amplifier arrangement has the following voltage gains: Av1 = 22, Av2 = 0.5, Av3 = 0.11 and Av4 = 50. What is the overall voltage gain? Express each gain in decides (dB) and determine the total voltage gain in dB.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Answer the following with illustration and solutions.

1.) A certain cascaded amplifier arrangement has the following voltage gains: Av1 = 22, Av2 = 0.5, Av3 = 0.11 and Av4 = 50. What is the overall voltage gain? Express each gain in decides (dB) and determine the total voltage gain in dB.

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Example: A certain cascaded amplifier arrangement has the following voltage gains: Av1 = 10, Av2 = 15, and Av3 = 20. What is the overall voltage gain? Express each gain in decibels (dB) and determine the total voltage gain in dB. Av2 Av3 av2 = 20log(Ap2) av2 = 20log(15) av2 = 23.52 dB Step 2: Determine total gain in dB. a'p(aR) = 20dB + 23.52dB + 26.02dB = 69.54 dB Step 1: Determine each gain in dB. Apı = 20log(A,1) avı = 20log(10) avı = 20 dB Alternately, av3 = 20log(A,3) Av3 = 20log(20) ap3 = 26.02 dB A', = Ap1Av2Av2 = 10(15)(20) = 3000 A', = 20 log(3000) = 69.54
Transcribed Image Text:Example: A certain cascaded amplifier arrangement has the following voltage gains: Av1 = 10, Av2 = 15, and Av3 = 20. What is the overall voltage gain? Express each gain in decibels (dB) and determine the total voltage gain in dB. Av2 Av3 av2 = 20log(Ap2) av2 = 20log(15) av2 = 23.52 dB Step 2: Determine total gain in dB. a'p(aR) = 20dB + 23.52dB + 26.02dB = 69.54 dB Step 1: Determine each gain in dB. Apı = 20log(A,1) avı = 20log(10) avı = 20 dB Alternately, av3 = 20log(A,3) Av3 = 20log(20) ap3 = 26.02 dB A', = Ap1Av2Av2 = 10(15)(20) = 3000 A', = 20 log(3000) = 69.54
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