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High Frequency AGC has Digital Control - 05/21/98 EDN-Design Ideas / (added
6/06) Many systems, especially communications, require AGC that functions at 50 MHz.
Self-calibrating systems, such as automatic test equipment, need this high-frequency
response but also require digital control of the AGC output voltage. During the
calibration cycle, the test equipment calculates the AGC output voltage necessary to
achieve....
How to generate random numbers - Start with an about 10MHz crystal oscilator, and
a 1000Hz rc oscilator such as a 555 or a few cmos gates. Uses high temperature
coefficient capacitors like Z5U's and even thermisters if you are so inclined for the
1000 Hz oscilator. Run the 10 MHz to a flip flop set up to toggle..... (circuit
design added 10/06)
