Emitter coupled logic oscillator circuit

Details Emitter coupled logic oscillator circuit Emitter coupled logic oscillator circuit

2007-06-12

2007-06-12

Chang, Joseph (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S158000

Reexamination Certificate

active

10813342

ABSTRACT:
In a piezoelectric oscillator a non-inverted output terminal (3) of an ECL circuit (10) is grounded via a capacitor (C3) and is connected to a non-inverting input terminal (5) of the ECL circuit (10) via a series connection of capacitors (C4) and (C5). The non-inverting input (5) is connected via a resistor R1to an inverting input terminal (4) of the ECL circuit (10) and is grounded via a capacitor (C2). The connection point of the series connection of the capacitors (C4) and (C5) is grounded via a crystal oscillator (X'tal) and a frequency control capacitor (C1). The output from the ECL circuit (10) is provided at its inverted output terminal2.

REFERENCES:
patent: 5136263 (1992-08-01), Lane
patent: 0230876 (1987-01-01), None

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