An
RF downconverter is used to convert high frequencies to a lower type,
namely an intermediate frequency, or IF. The integrated assembly must
be held to a high level of quality, and can be tailored for a number
of industries, such as communications and the military. They are also
often used for induction heating and radar applications. Since
various industries need specific standards for the devices, they can
be designed with a number of options.
1.
There are two types of technology
An
RF downconverter can be made from two different types of technology.
The most accurate type is crystal-controlled. In them, a crystal
oscillator is used to produce the frequency needed, much in the same
way a quartz movement watch works. The other type of technology that
can be used is a synthesized circuit device.
2.
Chips or Boards
Due
to size constraints and variations in application, RF downconverters
are available in several formats. They can be created as PCBs
(printed circuit boards) or ICs (integrated circuits).
3.
Mounting options vary
Depending
on the application and the environment in which the RF downconverter
will be used, it can be mounted in several ways. Some can rest
directly on a flat surface, such as a tabletop or desk, while others
are designed to mount to a rack with a collection of other
components.
4.
They can help reduce cable costs
Expensive
wave guides are required for some high frequency signals. An RF
downconverter alters the frequency to a lower form, so it can be
carried by an inexpensive and common cable type, such as coaxial.
5.
They help coordinate multiple frequency inputs
In
some applications multiple types of frequencies are being used
simultaneously. In order to synchronize them or use them together,
the frequency of each device can be reduced to the a common
denominator, the IF. This allows all filters, detectors, and
amplifiers to be tuned together, such as done in television
broadcasts.
If
you would like to learn more about an RF downconverter, visit
Aventis.
No comments:
Post a Comment