Multiple choice

The input to a linear delta modulator having a step-size $\Delta$ = 0.628 is a sine wave with frequency fm and peak amplitude Em. If the sampling frequency fs = 40 kHz, the combination of the sine wave frequency and the peak amplitude, where slope overload will take place, is

  1. Em = 0.3 V, fm = 8 kHz

  2. Em = 1.5 V, fm = 4 kHz

  3. Em = 1.5 V, fm = 2 kHz

  4. Em = 3.0 V, fm = 1 kHz

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B Correct answer
Explanation