Circuit arrangement using emitter coupled logic and integrated i

Details Circuit arrangement using emitter coupled logic and integrated i Circuit arrangement using emitter coupled logic and integrated i

1980-05-30

1982-11-02

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307455, 307459, H03K 19092, H03K 19086, H03K 19091

Patent

active

043575480

ABSTRACT:
In a circuit using integrated injection logic and emitter coupled logic circuits, a unique arrangement is used to facilitate the interface between various circuit sections. An embodiment in an AM/FM digital tuner circuit is shown. Specifically, the integrated injection logic circuits are stacked with the current supply for the integrated injection logic stack being directly connected to the same power supply operating potential as the current supply for the emitter coupled logic circuits. Such arrangement reduces the magnitude of the potential difference between logic signal voltage levels between the respective logic circuits. Representative interface circuits between integrated injection logic circuits and emitter coupled logic circuits are disclosed. An interface circuit using emitter coupled logic is disclosed for fast level shift between upper and lower level circuits within the integrated injection logic stack.

REFERENCES:
patent: 4007385 (1977-02-01), Chapron
patent: 4013901 (1977-03-01), Williams
patent: 4132059 (1979-01-01), Williams
patent: 4158782 (1979-06-01), Price, Jr.
patent: 4189909 (1980-02-01), Marum
patent: 4256984 (1981-03-01), Kojima
patent: 4326135 (1982-04-01), Jarrett et al.
S. Hilliker, "A Uniquely Simplified TV Tuning System Incorporating an Equally Unique Digital Automatic and Manual Fine Tuning Scheme", IEEE Transactions on Consumer Electronics, Feb. 1976, pp. 61-68.

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