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EP0416145A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Circuit arrangement for a controllable ring oscillator suitable for integration

Assignee: Siemens AG
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Filing: 1989-09-05
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Granted: —
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Expires: 2009-09-05
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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

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 07:58
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/353; H03K3/354; H03K3/027; H03K3/03; H03K3/0315

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3708757A Cited
EP0144636A1 Cited
EP0243878A1 Cited
EP0322047A2 Cited

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