The input to a linear delta modulator having a step-size = 0.62V is a sine wave with frequency f m and peak amplitude Em. If sampling frequency is f s = 40 kHz the combination of the sine wave frequency and the peak amplitude, where slope overload will take place is Em fm

• A. 0.3 V 8 kHz
• B. 1.5 V 4 kHz
• C. 1.5 V 2 kHz
• D. 3.0 V 1 kHz