Bistable logic device, operating from DC to 10 GHz, and frequenc

Details Bistable logic device, operating from DC to 10 GHz, and frequenc Bistable logic device, operating from DC to 10 GHz, and frequenc

1983-06-17

1986-02-04

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307272A, 307279, H03K 3289, H03K 3288

Patent

active

045688435

ABSTRACT:
A bistable logic device, of the RSTT type, operating up to X band. The bistable logic device is organized into three stages: an input stage of four NOR operators (21, 31, 41, 51), a second stage of two OR operators (61, 71) and an output stage of two OR operators (62, 72). Each NOR operator of the input stage drives in parallel an OR operator of the second stage and an OR operator of the output stage. Each of the four OR operators are fed back to an input of one of the four NOR operators of the input stage. The organization in logic NOR/OR form makes it possible to use faster single gate transistors. The present invention may be particularly useful to frequency dividers for interfacing between signals at GHz frequency and measurement and control circuits at MHz frequency.

REFERENCES:
patent: 3845325 (1974-10-01), Daniels et al.
R. Van Tuyl et al, GaAs MESFET Logic with 4 GHz Clock Rate, IEEE Journal of Solid State Circuits, vol. SC-12, No. 5, Oct. 1977, pp. 485-496.
R. Van Tuyl et al, 4 GHz Frequency Division with GaAs MESFET IC's, IEEE International Solid State Circuits Conference, vol. 20, No. 20, pp. 198-199 and 252.
M. Cathelin et al, 5 GHz Binary Frequency Division on GaAs, Electronics Letters, vol. 16, No. 14, Jul. 1980, pp. 535-536.

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