A periodic squarewave signal with a period of 100ps and a peak value of 10mV is input to an amplifier with a gain of 100 and a lowpass frequency response characteristic with a cut-off frequency of 60kHz. Assume ideal filtering characteristics and recall that the amplitude of the harmonic components An of a squarewave with amplitude E are given by: 4E A = - mu, n odd Determine: (i) the fundamental frequency of the squarewave; [2 marks] (ii) the highest harmonic frequency present in the amplifier output signal; [2 marks] (iii) the amplitude in volts of the first harmonic (fundamental) in the amplifier output.