# Communication Systems [solutions manual] by S. Haykin PDF

By S. Haykin

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Example text

15). The corresponding amplitude values for the output voltage are obtained by multiplying by -Re = -5kf!. 4a. For this example, Vee = 15V and Re = 5kf!. The input bias voltage vBB is included in the vl specifications. 4a. 4b. 4d. 99mA. 59%. The comparison of simulated and estimated values is very close. 5 should be analyzed. FOUR lOOK V(3) RS 1 2 1 Ql 3 2 0 MOD! MODEL MOD! 0000 ( SMALL-SIGNAL CHARACTERISTICS V(3) /V1 INPUT RESISTANCE AT V1 OUTPUT RESISTANCE AT V(3) -1. 6090+03 5. 4: (a) SPICE input file forCE stage, de operating point and small-signal transfer characteristics.

4: (a) SPICE input file forCE stage, de operating point and small-signal transfer characteristics. (b) De voltage transfer characteristic of CE stage. 000000 0. 4: (c) Transient output voltage waveform of CE stage. (d) Fourier components of output voltage. 5: A single-ended, single device, ac bypassed CE stage. 2b. Again, a shift of ground point is necessary. The conclusion can be drawn that it is usually possible to reduce a practical implementation of a stage into the essential configuration.

49) are not present. 0375% which compares well within the Spice result. 75%. As noted earlier, this level of input drives the transistors into the resistance region of operation and the analysis above is suitable only for a rough approximation. 1 General Power Series Description In the previous chapter, a power-series expansion of the transfer characteristics of a stage is obtained from the circuit analysis of the stage using simplified circuit models for the transistors. , for the ECP stage, VdVT «: 1.