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DDS amplitude modulation

Question asked by baburay1983 on Aug 28, 2017
Latest reply on Aug 30, 2017 by mcee

i want to generate 1 KHz sine wave using DDS so that the amplitude of the sine wave can be varied by changing DAC reference voltage.

this external square wave signal  is of 100 Hz and 0.5 to 5 V PP

i want modulation index 3:1

that meand sine wave amplitude variation 1.7 to 5 v pp