Circuit arrangement for a controllable ring oscillator suitable for integration
Abstract
Abstract Translated from German Um ein möglichst symmetrisches Taktsignal zu erzeugen, wird ein zweistufiger Ringoszillator vorgeschlagen, dessen Stufen (I, II) in ihrer Verzögerungszeit durch Umladen einer Kapazität (C) mittels einer Stromquelle (IQ) einstellbar sind. Die Stromquelle (IQ) wird dazu über einen Steuereingang (SE1) von einem Steuerstrom beaufschlagt, der die Verzögerungszeit bestimmt. In order to generate a clock signal that is as symmetrical as possible, a two-stage ring oscillator is proposed, the stages (I, II) of which can be adjusted in their delay time by reloading a capacitance (C) by means of a current source (IQ). For this purpose, the current source (IQ) is acted upon by a control current via a control input (SE1), which determines the delay time.
Inventors
- 👤 Ulrich Dipl.-Ing. Langenkamp
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