Multiple-frequency sine wave generator - derives corresp. carrier frequencies from parent oscillator output using digital frequency dividers

摘要

Further frequency dividers (FT1) are used to produce additional pulses (I2-Ik) from the output voltage of the parent oscillator or of a pulse generator (IG) with random text sequence. The additional pulses are blended into the output pulses of the parent oscillator in front of the frequency dividers under the control of the pulse generator. The pulse generator (IG), sets the AND-gate (G2-GK) free, according to the polarity of its output signal and applies the appropriate pulses (I2-IK) for each carrier frequency (f1 to fk). The appropriate pulses (I2 to Ik), before blending are held in a pulse shaper for an intrinsically-set time period of DELTA T.