Abstract
A crystal oscillator circuit (100, 200) is described that includes a crystal resonator (220); and a voltage source (204) configured to apply a voltage step across the crystal oscillator (220) where a polarity of the voltage source (204) applied to the crystal resonator (220) is switched in response to a sign of a current passing through the crystal resonator (220) and in response thereto a self-timed energy injection waveform is provided to the crystal resonator (220).
| Original language | English |
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| Patent number | US 10,931,232B2 |
| Priority date | 24/01/19 |
| Filing date | 24/01/20 |
| Publication status | Published - 23 Feb 2021 |