50_MC_SAMPLING_AND_THRESHOLD_CIRCUIT

Published:2009/7/14 2:58:00 Author:May | From:SeekIC

Threshold tunnel diode receives signal current to be sampled and interrogation pulses repeating at 50 Mc. Diode fires when signal current is below threshold level, making memory tunnel diode switch into its high-voltage state. Current level differences of less than 50 microamp can be resolved in 0.3 nsec, sufficient for converting input into six bits corresponding to 64 levels.-H. R. Schindler, Semiconductor Circuits in a UHF Digital Converter, Electronics, 36:35, p 37-40.



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