D 7.138 A CE amplifier has a midband voltage gain of A M = 100 V/V, a lower 3-dB frequency of fL = 100 Hz, and a higher 3-dB frequency fH = 500 kHz. In Chapter 10 we will learn that connecting a resistance Re in the emitter of the BJT results in lowering fL and raising fH by the factor 1+gmRe. If the BJT is biased at I C = 1 mA, find Re that will result in fH at least equal to 2 MHz. What will the new values of fL and A M be?

138 - D 7.138 A CE amplifier has a midband voltage gain of A M = 100 V/V, a lower 3-dB frequency of fL = 100 Hz, and a higher 3-dB frequency fH = 500 kHz. In Chapter 10 we will learn that connecting a resistance Re in the emitter of the BJT results in lowering fL and raising fH by the factor 1+gmRe. If the BJT is biased at I C = 1 mA, find Re that will result in fH at least equal to 2 MHz. What will the new values of fL and A M be?

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images - D 7.138 A CE amplifier has a midband voltage gain of A M = 100 V/V, a lower 3-dB frequency of fL = 100 Hz, and a higher 3-dB frequency fH = 500 kHz. In Chapter 10 we will learn that connecting a resistance Re in the emitter of the BJT results in lowering fL and raising fH by the factor 1+gmRe. If the BJT is biased at I C = 1 mA, find Re that will result in fH at least equal to 2 MHz. What will the new values of fL and A M be?

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