AM Modulator with JFET Input Operational Amplifier

Description

SPICE simulation of a AM modulator with operational amplifier. A modulating signal, in this case a 2 khz sinusoidal frequency, modulates the amplitude of the 100 khz carrier. This modulation is also called double sideband full carrier (DSBFC) and produces in the spectrum a fcarrier+fmodulating, and fcarrier-fmodulating frequency components, with a bandwidth of 2*fmodulating, 4 khz. The operational amplifier is a LF411.

• Project Type: Free
• Complexity: Simple
• Components number: <10
• SPICE software: PSpice
• Software version: 9.1+
• Full software version nedeed : No
• Screenshots simulation images: