H.W Two low pass signals, each band limited 4KHZ, are to be time multiplexed into a single channel using PAM. Each signal is impulse sampled at a rate 10KHZ. The time multiplexed signal waveform is filtered by an ideal LPF before transmission. (a) What is minimum clock frequency of the system? (b) What is the minimum cut off frequency of the LPF? (c) In the receiver side, determine the minimum and maximum acceptable bandwidth of the LPF used in retrieving the analog signal? Ans. (a) 20KHZ (b) 10KHZ (c) 4KHZ, 6KHZ.

Complete task from image

transistor datasheet. 1. COMPLETE TABLE                                                          #1 Table 1 Parameters of BJT transistors Code type Ic [A]  VCEO [V]   PD[w]   ft[MHz]   encapsulated   2N2222A             2N3904             2N3906 NPN 0.2A 40V 0.625W 300MHz TO-92 MPS2907A PNP 0.8A 60V 0.4W 200MHz TO-92

In an amplitude modulation process, write what name the signals indicated in diagram 1 receive A) signal at frequency of 1400kHz B) signal b with a bandwidth of 300Hz to be transmitted C) Signal c