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US 10,707,841 B1Granted
Driving circuit for single crystal RTC and RF clock
AssigneeSequans Communications
InventorsThomas Winiecki, Peter Martin
Life of this patent
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Abstract
A crystal driving circuit comprising a circuit input node and a circuit output node, a high power amplifier having a power consumption of more than 100 μW, a low power amplifier comprising a power consumption less than 10 μW, the circuit being arranged to selectively isolate the high power amplifier and associated load capacitance from the circuit input node and the circuit output node.
Claims20
A crystal driving circuit comprising:
- a circuit input node and a circuit output node;
- a high power amplifier having a power consumption of more than 100 μW;
- a low power amplifier comprising a power consumption less than 10 μW;
- the circuit being arranged to selectively isolate the high power amplifier and associated load capacitance from the circuit input node and the circuit output node.
1 more element
A method of driving a crystal driving circuit, wherein the crystal driving circuit comprises a circuit input node and a circuit output node;
- a high power amplifier having a power consumption of more than 100 μW;
- a low power amplifier comprising a power consumption less than 10 μW;
- the circuit being arranged to selectively isolate the high power amplifier and associated load capacitance from the circuit input node and the circuit output node, the method comprising:
- operating in a low power mode whereby the high power amplifier and associated load capacitance is selectively isolated from the crystal driving circuit.
1 more element
Dependencies are inferred from the claim text.