Figure 3-2. An amplitude modulated signal. The demodulation process for AM where the radio frequency signal is converted into an audio frequency signal is very simple. It only requires a simple diode ...

If we replace the potentiometer VR1 with an AC signal plus DC bias signal in any of the previous Figures 3 to 17, the voltage controlled attenuators can become an amplitude modulator circuit instead.

[brmarcum] takes us back to analog building block basics with his Frequency Modulation and Demodulation tutorial ... to fill that gap with a simple circuit that modulates an audio signal to ...

an equal blend of the original left and right A 19 kHz “pilot” sine wave that is utilized in the stereo demodulation process An amplitude-modulated envelope centered on 38 kHz that contains the ...

Other applications include: • Providing an interferometric optical modulator which can be utilized as a digital photonic clock circuit, a pulse width/amplitude modulator circuit, and a bi-stable ...

In television broadcasting, the picture is carried by amplitude modulation ... response of this particular demodulator is limited to 800kHz in the I and Q channels. In television broadcasting, audio ...

Its designer [acidbourbon] remarks that the circuit bears a striking resemblance to a ring modulator ... The extra-op-amp filter and demodulator circuitry from the radio is omitted, and the ...

This demodulator is suitable for the quadrature phase-shift keying (QPSK) modulator previously published by the same author, "Novel Low-Cost QPSK Modulator Needs No Adjustments" (electronic design ...