Patent ID: 11881817
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An oscillator driver circuit having a first node and a second node for providing an oscillator output signal, comprising:
a first capacitor having a first terminal adapted to be coupled to the first node, and a second terminal coupled to ground;
a second capacitor having a first terminal adapted to be coupled to the second node, and a second terminal coupled to ground;
an inverter having an input coupled to the first node, and an output coupled to the second node; and
a voltage shifting circuit coupled to the first node and to the second node and having an input for receiving a tuning signal, wherein said voltage shifting circuit changes an average voltage at the first node according to said tuning signal as a function of a value of a tunable capacitor when an oscillation occurs in response to a crystal being coupled between said first node and said second node.