Accession Number : AD0661628

Title :   STATISTICS OF SWITCHING-TIME JITTER FOR A TUNNEL DIODE THRESHOLD-CROSSING DETECTOR.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s) : Nelsen,Donald E.

Report Date : 31 AUG 1967

Pagination or Media Count : 63

Abstract : As a step toward obtaining a procedure for modeling randomness occurring in electronic switching circuits, the switching randomness, or jitter, arising in a tunnel-diode switch was investigated. Distributions of the switching time were measured for a tunnel-diode switching circuit that was driven by a slowly rising current ramp. A model was deduced from these measurements which relates the statistics of the jitter to the slope of the input ramp, the load resistance, and the tunnel-diode characteristics in the vicinity of the current peak; the amount of shot noise, junction capacitance, and i-v relation curvature. For switching in the reverse direction -- from the valley of the i-v relation back to the initial state -- the switching randomness involves a different mechanism. Another model is presented for this case. This model relates the jitter to the 1/f noise that predominates in the valley region of the tunnel diode.

Descriptors :   (*ELECTRONIC SWITCHES, TUNNEL DIODES), SWITCHING CIRCUITS, STABILITY, MATHEMATICAL MODELS, STATISTICAL ANALYSIS, TIME

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE