September 2011
Intermediate to advanced
960 pages
25h 22m
English
1. The transit frequency is defined as the frequency at which the small-signal current gain of a device falls to unity.
2. In some cases, the modulator and the upconverter are one and the same. In some other cases, the modulation is performed in the digital domain before upconversion. Most receivers demodulate and detect the signal digitally, requiring only a downconverter in the analog domain.
1. It is helpful to remember that, for n = 1, each impulse in the above summation has an area of 1/π and the corresponding sinusoid, a peak amplitude of 2/π.
2. Note that this expression should be considered as a fit across the signal swings of interest rather than as a Taylor expansion in the vicinity of x = 0. These two ...
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