(b) Figure Q2(b) shows a BJT amplifier with ß = 120 and VBE = 0.7 V. (i) Calculate current, IB, Ic and IE and output voltage, VCE for the circuit using exact analysis. (ii) Sketch the midband AC equivalent circuit using re model. (iii) Determine the input impedance, Zi, output impedance, Zo, voltage gain, Av and current gain, A¡ for the obtained answer in part Q2(b)(ii).
Quantization and Resolution
Quantization is a methodology of carrying out signal modulation by the process of mapping input values from an infinitely long set of continuous values to a smaller set of finite values. Quantization forms the basic algorithm for lossy compression algorithms and represents a given analog signal into digital signals. In other words, these algorithms form the base of an analog-to-digital converter. Devices that process the algorithm of quantization are known as a quantizer. These devices aid in rounding off (approximation) the errors of an input function called the quantized value.
Probability of Error
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