local oscillator

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local oscillator

In a superheterodyne radio, a local oscillator is an electronic circuit that generates a frequency based on the desired channel. The output of the oscillator is the channel frequency typically added to the intermediate frequency (IF). See PLL.

local oscillator [′lō·kəl ′äs·ə‚lād·ər]

(electronics)

The oscillator in a superheterodyne receiver, whose output is mixed with the incoming modulated radio-frequency carrier signal in the mixer to give the frequency conversions needed to produce the intermediate-frequency signal.

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heterodyne detector
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The three new TriQuint products address OEM needs for frequency upconversion in the transmit (Tx) and local oscillator chains for digital radio and satellite communications systems.

TriQuint Introduces a New Family of GaAs Products for Digital Radio ... by Business Wire

They include a double-balanced active mixer, local oscillator (LO) amplifiers, and dual LO inputs selected by an external switch interface.

Skyworks Achieves Performance Breakthrough with New Line of Active ... by Business Wire

The family also features a buffered single-ended local oscillator (LO) drive and operates from a singly supply voltage of 4.

Analog Devices Expands RF Offering with Quadrature Modulators ... by Business Wire

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