Integrated quartz oscillator circuit
AssigneeATMEL Germany GmbH
InventorUdo Karthaus
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Abstract
An integrated quartz oscillator circuit is disclosed having a capacitive voltage divider, which has a first capacitor and a second capacitor, as well as having a first transconductance amplifier, which is placed in a loop connecting a first terminal and a second terminal of the first capacitor. An input of the first transconductance amplifier is connected to a center tap between the first capacitor and the second capacitor, an output of the first transconductance amplifier is connected to the first junction of the first capacitor, and the quartz oscillator circuit has a conductive element connected parallel to the second capacitor.
Claims11
An integrated quartz oscillator circuit comprising:
- a capacitive voltage divider, which has a first capacitor and a second capacitor;
- a first transconductance amplifier, which is provided in a loop connecting a first junction and a second junction of the first capacitor, an input of the first transconductance amplifier being connected to a center tap between the first capacitor and the second capacitor, an output of the first transconductance amplifier being connected to the first junction of the first capacitor;
- and
- a conductive element being connected parallel to the second capacitor.
Dependencies are inferred from the claim text.