A 45Mbseg signal is applied to an 8PSK type modulator, so the bandwidth of this modulator is 20Mhz. true or false

Prelab: Using the BJT large signal model for the circuit in Figure 1, determine the Vub voltage required to drive a collector current of I, = 0.5 mA. Use RB = 220 kN, Rc = 2.05 kN, RE = 1.05 kN, and Vee = 5V. Assume Is = 50nA and ß = 250. (Hint: Find Vbe using Ic, then use KVL to find Vbb, remember that Ib can be found using the Ic/ ß relationship) RC Voc R3 bb RE Figure 1 NPN BJT under DC Bias

answer all

What will be the minimum bandwidth for a PCM system which has a 10 kHz input signal and 8 bits per sample transmission mode.