RF Frequency UpConverter

The NE602 (Signetics) or SA602 (Philips) may be a good choice.

The Philips Application Notes, AN1981, is helpful.

This IC has been around for at least 10 years so you may find an update of it available.

I have a MS WORD copy of a Feb. 97, Electronics Now Article that discusses it at some length. You can email me for it if you decide to try the IC, which by the way, has an on-chip oscillator, which makes it's use quite simple. If needed, I can convert it to PDF.

snipped-for-privacy@verizon.net (Brad) hath wroth:

What's your idea of UHF? 300MHz? 1GHz? 3GHz? How low level is your signal? A number in dBm would be nice. Numbers please, not generalities.

Why use a semiconductor? Your "frequency upconverter" is actually a mixer. Take two frequencies, mix well, filter out the unwanted junk, and you have the UHF output. Look into double balanced mixers. They're cheap, efficient, have clean output, and are easy to use (design).

For example +7dBm LO input mixers:

Lots of app notes and articles on how to use them effectively. Look under "frequency mixers":

How big do you want it? Double blanced mixers come in various sizes. However, you'll find that as you go up in frequency, the package sizes tend to decrease substantially.

Why would anyone put a lumberjack (logger) inside my PC?

Hi Don,

Thank you for that information and offer.

I have that issue of Electronics Now. The article starts on page 47.

This looks like what I want!!

Brad

By the way, I found some notes that the SA612A is a later and better pin-for-pin replacement for the 602.

Have fun.