A linear delta modulator is designed to operate on speech signals limited to 3.4 kHz. The specifications of the modulator are as follows:
• Sampling rate = 10fNyquist, where fNyquist is the Nyquist rate of the speech signal.
• Step size D = 100 mV.
The modulator is tested with a 1kHz sinusoidal signal. Determine the maximum amplitude of this test signal required to avoid slope-overload distortion.