Which statement best describes the action of an OTA amplitude modulator?
A) The power supply bias adjusts the output level.
B) Variations of light intensity adjust the gain of the amplifier.
C) The variations of voltages applied to the current bias input adjusts the gain of the amplifier.
D) The OTA is versatile and can be configured to work in any of these ways.

Question

Quizplus · Accepted Answer

An OTA amplitude modulator uses variations of voltages applied to the current bias input to adjust the gain of the amplifier. This variation in gain results in the amplitude modulation of the output signal.

Which Statement Best Describes the Action of an OTA Amplitude