November 2007
Intermediate to advanced
736 pages
46h 32m
English
Content preview from Consumer Electronics
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LOW NOISE CONSIDERATIONS
The noise figure, NF, of an amplifier is defined by the equation:
An ideal amplifier should amplify the incoming signal and noise without changing the signal-to-noise ratio, that is, the noise figure would be unity (i.e. 0 dB). In practice, some extra noise is generated in the transistor and so the noise figure of a transistor amplifier is always greater than unity. The nearer the noise figure is to unity, the better is the amplifier.
If an amplifier is required to amplify signals with amplitudes of the order of microvolts, special attention must be paid to the design from the low noise aspect. The noise figure ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.