System for constraining an operating parameter of an EHF communication chip

1. An EHF communication system, comprising:

an EHF communication chip, including:

an EHF communication circuit, wherein the EHF communication circuit comprises at least one controllable parameter-based module having a testable and controllable operating parameter; and

a test and trim circuit coupled to the EHF communication circuit, wherein the test and trim circuit includes a logic circuit having one or more memory elements;

wherein the logic circuit is coupled to the at least one controllable parameter-based module having an associated testable and controllable operating parameter.

2. The system of claim 1 , wherein the one or more memory elements include a nonvolatile memory element and a temporary data register.

3. The system of claim 1 , wherein the test and trim circuit further comprises an interface configured to operatively connect an external control circuit to the logic circuit, wherein the external control circuit is configured to control operation of the test and trim circuit.

4. The system of claim 3 , further comprising an external test and trim rig including the external control circuit, wherein the test and trim rig is operatively connected to the interface of the EHF communication chip.

5. The system of claim 1 , wherein the operating parameter is controlled by a signal that is representative of a parameter value stored in one of the non-volatile memory and the temporary data register.

6. The system of claim 5 , wherein the non-volatile memory further comprises a plurality of fuses, and a parameter value is stored in the non-volatile memory by selectively blowing one or more of the plurality of fuses.

7. The system of claim 1 , wherein the at least one controllable parameter-based module includes an electronic oscillator; and the testable and controllable operating parameter of the electronic oscillator is a carrier frequency.

8. The system of claim 1 , wherein the at least one controllable parameter-based module includes a power amplifier, and the testable and controllable operating parameter of the power amplifier is a transmit power.

9. The system of claim 1 , wherein the at least one controllable parameter-based module includes an amplifier, and the testable and controllable operating parameter of the amplifier is a gain level.

10. An EHF communication system, comprising:

an EHF communication circuit responsive to a control setting and operating initially at an initial EHF carrier frequency;

a test circuit configured to determine a difference between the initial EHF carrier frequency and a preselected reference carrier frequency, to generate a temporary control setting for the EHF communication circuit configured to adjust the carrier frequency of the EHF communication circuit from the initial EHF carrier frequency to an adjusted EHF carrier frequency within a preselected frequency range including the reference carrier frequency, and to apply the temporary control setting to the EHF communication circuit; and

a memory circuit coupled to the EHF communication circuit and configured to permanently apply the temporary control setting to the EHF communication circuit.

11. The EHF communication system of claim 10 , wherein the test circuit is configured to compare the adjusted EHF carrier frequency to the preselected frequency range, to generate a further temporary control setting for the EHF communication circuit that adjusts the carrier frequency of the EHF communication circuit from the adjusted EHF carrier frequency to a further adjusted EHF carrier frequency; and to repeat iteratively until the further adjusted EHF carrier frequency is within the preselected frequency range.

12. The EHF communication system of claim 10 , wherein the EHF communication circuit includes at least one controllable parameter-based module having a testable and controllable operating parameter that is the EHF carrier frequency.

13. The EHF communication system of claim 12 , wherein the controllable parameter-based module of the EHF communication circuit is an electronic oscillator.

14. The EHF communication system of claim 10 , further comprising an external communication interface coupled to the EHF communication circuit; and a logic circuit coupled to the external communication interface; wherein the memory circuit further includes a volatile memory element and a non-volatile memory element coupled to each other; and both the volatile memory element and the non-volatile memory element are controllable by the logic circuit.

15. The EHF communication system of claim 10 , wherein the memory circuit is configured to copy content from the non-volatile memory to the volatile memory during operation of the EHF communication chip.

16. The EHF communication system of claim 14 , wherein the memory circuit is configured to set the content of the volatile memory via the external communication interface.

17. An EHF communication system, comprising:

an EHF communication circuit responsive to a control setting and operating initially at an initial EHF emissions level;

a test circuit configured to determine a difference between the initial EHF emissions level and a preselected reference EHF emissions level, to generate a temporary control setting for the EHF communication circuit configured to adjust the EHF emissions level of the EHF communication circuit from the initial EHF emissions level to an adjusted EHF emissions level within a preselected emissions level range of the reference EHF emissions level, and to apply the temporary control setting to the EHF communication circuit; and

a memory circuit coupled to the EHF communication circuit and configured to permanently apply the temporary control setting to the EHF communication circuit.

18. The EHF communication system of claim 17 , wherein the test circuit is configured to compare the adjusted EHF emissions level to the preselected emissions level range, to generate a further temporary control setting for the EHF communication circuit that adjusts the emissions level of the EHF communication circuit from the adjusted EHF emissions level to a further adjusted EHF emissions level; and to repeat iteratively until the further adjusted EHF emissions level is within the preselected emissions level range.

19. The EHF communication system of claim 17 , wherein the EHF communication circuit includes at least one controllable parameter-based module having a testable and controllable operating parameter that is the EHF emissions level.

20. The EHF communication system of claim 17 , wherein the memory circuit includes an interface for controlling the EHF emissions level of the EHF communication circuit.

21. The EHF communication system of claim 19 , wherein the controllable parameter-based module of the EHF communication circuit is a transducer capable of interfacing to or from EHF electromagnetic radiation.

22. The EHF communication system of claim 17 , further comprising an external communication interface coupled to the EHF communication circuit; and a logic circuit coupled to the external communication interface; wherein the memory circuit further includes a volatile memory element and a non-volatile memory element coupled to each other; and both the volatile memory element and the non-volatile memory element are controllable by the logic circuit.

23. The EHF communication system of claim 17 , wherein the memory circuit is configured to copy content from the non-volatile memory to the volatile memory during operation of the EHF communication chip; and to set the content of the volatile memory via the external communication interface.