Temperature compensated delay signals
AssigneeInfineon Technologies AG
InventorsThoai Thai Le, Jung Pill Kim
Life of this patent
Estimating the term…
Abstract
A temperature compensated delay circuit for delaying a signal within an integrated circuit includes a temperature sensor. The temperature sensor is configured to sense a temperature proximal to the integrated circuit and configured to provide a control signal representative of the sensed temperature proximal to the integrated circuit. A delay chain is configured to receive a signal and provide a plurality of output signals. Each output signal has a time delay distinct from other output signals. A multiplexer is configured to receive the plurality of output signals from the delay chain and to receive the control signal from the temperature sensor representative of the sensed temperature. The multiplexer is configured to provide a temperature compensated delayed output signal.
Claims20
A temperature compensated delay circuit for delaying a signal within an integrated circuit, the delay circuit comprising:
- a temperature sensor configured to sense a temperature proximal to the integrated circuit and configured to provide a control signal representative of the sensed temperature proximal to the integrated circuit;
- a delay chain configured to receive a signal and provide a plurality of output signals, each output signal having a time delay distinct from other output signals;
- a multiplexer configured to receive the plurality of output signals from the delay chain and receive the control signal from the temperature sensor representative of the sense temperature, the multiplexer also configured to provide a temperature compensated delayed output signal;
- and
- a dynamic random access memory configured to receive the temperature compensated delayed output signal.
A method for compensating for temperature effects on a delay circuit within an integrated circuit, the method comprising:
- sensing a temperature proximal to the integrated circuit;
- providing a control signal representative of a distinct temperature range incorporating the sensed temperature proximal to the integrated circuit;
- providing a plurality of signals, each signal having a time delay distinct from other signals;
- providing a temperature compensated delayed output data signal based upon the control signal, the temperature compensated delayed output data signal equal to one of the plurality of signals;
- and
- providing the temperature compensated delayed output signal to a dynamic random access memory.
Dependencies are inferred from the claim text.