Temperature compensated clock delay closed loop circuit
AssigneeL3 Communications Integrated Systems, L.P.
InventorMark Chivers
Life of this patent
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Abstract
Embodiments of the present invention provide a temperature compensating circuit. The circuit generally includes a clock element operable to provide an adjustable clock signal, a buffer element coupled with an analog-to-digital converter and operable to receive the adjustable clock signal, a temperature sensor operable to sense a temperature, and a logic element coupled with the clock element and the temperature sensor. The logic element is operable to acquire the temperature from the temperature sensor and adjust the clock signal based upon the acquired ambient temperature. Such a configuration compensates for temperature variations and reduces system complexity and required component space, thereby providing a compact and efficient design.
Claims20
A temperature compensating circuit comprising:
- a clock element operable to provide an adjustable clock signal;
- a buffer element operable to couple with the clock element and an analog-to-digital converter, receive the adjustable clock signal, and acquire data from the analog-to-digital converter according to the received clock signal;
- a temperature sensor operable to sense an ambient temperature;
- and
- a logic element coupled with the clock element and the temperature sensor, the logic element operable to acquire the ambient temperature from the temperature sensor and adjust the clock signal based upon the acquired ambient temperature.
A temperature compensating circuit comprising:
- a clock element operable to provide an adjustable clock signal;
- a plurality of buffer elements each having a setup time and a hold time and operable to couple with the clock element and one or more analog-to-digital converters, receive the adjustable clock signal, and acquire data from one or more of the analog-to-digital converters according to the received clock signal;
- a temperature sensor operable to sense an ambient temperature;
- and
- a logic element coupled with the clock element and the temperature sensor, the logic element operable to acquire the ambient temperature from the temperature sensor and adjust the clock signal based upon the acquired ambient temperature to correspond to the setup and hold times.
A temperature compensating circuit comprising:
- a plurality of analog-to-digital converters each operable to sample a signal;
- a clock element coupled with the analog-to-digital converters and operable to provide a sampling clock signal and an adjustable clock signal;
- a plurality of digital filter elements each having a setup time and a hold time, each digital filter element operable to—
- couple with the clock element and one or more of the analog-to-digital converters,
- receive the adjustable clock signal, and
- acquire data from one or more of the analog-to-digital converters according to the received clock signal;
- a digital temperature sensor operable to sense an ambient temperature;
- and
- a logic element coupled with the clock element and the digital temperature sensor, the logic element operable to acquire the ambient temperature from the temperature sensor and, between data collection periods, adjust the clock signal based upon the acquired ambient temperature to correspond to the setup and hold times of the digital filter elements.
Dependencies are inferred from the claim text.