Electrical circuit for interfacing high frequency signals to the

Details Electrical circuit for interfacing high frequency signals to the Electrical circuit for interfacing high frequency signals to the

1986-10-03

1987-06-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307261, 307265, 307268, H03K 3017, H03K 501, H03K 504

Patent

active

046773193

ABSTRACT:
An interface circuit, particularly for use between a high frequency sine wave and ECL (emitter-coupled logic) logic levels, which has an almost resistive input inpedance. The circuit may comprise an ECL OR/NOR gate (3) with the complementary outputs thereof having respective feedback paths (R2,R1; R3,R1). The high frequency sine wave is supplied via a coaxial cable (4) which is terminated via resistor R1. The feedback resistors R2 and R3 are of the same value. The mark-to-space ratio at the gate outputs is substantially maintained at 50/50. The gate may be AND/NAND rather than OR/NOR. The interface circuit is applicable to any logic family having a switching voltage at the mean of the "0" and "1" voltages.

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Toute l'Electronique, No. 457, Oct. 1980, pp. 81-86, Paris, FR: "Applications et Circuits".
L'Onde Electrique, vol. 45, No. 457, Apr. 1965, pp. 476-484, Paris, FR; J. Mey: "Techniques Actuelles et Perspectives de l'Electronique Nucleaire Rapide".

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