Question: Neglecting flicker noise, calculate the total equivalent input noise voltage for the MC1553 shown in Figure 8.21a. Use Î² = 100, r b = 100

Neglecting flicker noise, calculate the total equivalent input noise voltage for the MC1553 shown in Figure 8.21a. Use Î² = 100, r_b= 100 Î© and assume a sharp cutoff in the frequency response at 50 MHz. Then calculate the average noise figure of the circuit with a source resistance of 50 Î©.

Fig. 8.21a:

+Vcc Q5 Rc Rg RA Rx Q3 Q2 Q1 RG RF RE2 CF RE Rp

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