Adjustable delay circuit of the current intensity having delay a

Details Adjustable delay circuit of the current intensity having delay a Adjustable delay circuit of the current intensity having delay a

1991-12-18

1995-10-31

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

327271, 327272, 327274, 327393, 327394, 327395, 327400, H03H 1126, H03H 17296, H03H 1728

Patent

active

054633435

ABSTRACT:
The delay device 10 includes an ECL gate 11, the current source 16 and two resistive load elements 14, 15 of which are associated with an adjusting circuit 23 producing an adjusting voltage Vd, to cause the polarization current of the current source to vary hyperbolically, and a voltage Vh for keeping constant the voltage at the collectors of the transistors 12 and 13 of the gate 11. The delay device 10 causes the delays between the input signals IN, IN* and output signals OUT, OUT* to vary linearly. The invention is applicable in particular to systems for the transmission of digital data at a very high rate, of more than 1 gigabit per second, for example.

REFERENCES:
patent: 4422052 (1983-12-01), Yorkanis et al.
patent: 4709170 (1987-11-01), Li
patent: 4797586 (1989-01-01), Traa
patent: 4862020 (1989-08-01), Cowan et al.
patent: 4866314 (1989-09-01), Traa
patent: 4893036 (1990-01-01), Hester et al.

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