Power detector of embedded IC test circuits
AssigneeUniversity of Florida Research Foundation, Inc.
InventorsWilliam R. Eisenstadt, Robert M. Fox, Jang Sup Yoon, Tao Zhang
Life of this patent
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Abstract
A self-testing transceiver having an on-chip power detection capability is provided. The self-testing transceiver can include a semiconductor substrate and a transmitter having a high-power amplifier disposed on the substrate. The self-testing transceiver also can include a receiver disposed on the substrate for selectively coupling to an antenna. The self-testing transceiver can further include at least one power detector disposed on the semiconductor substrate for determining a power such as an RMS and/or peak-power of a signal at an internal node of the self-testing transceiver. Additionally, the self-testing transceiver can include a loopback circuit disposed on the substrate.
Claims9
A power detector, comprising:
- an initial-stage attenuator for attenuating a received signal, said initial-stage attenuator having a signal input and a signal output;
- a final-stage attenuator electrically connected to said initial-stage attenuator for also attenuating the received signal, said final-stage attenuator having a signal input and a signal output;
- at least one intermediate-stage attenuator connected in series between said initial-stage attenuator and said final-stage attenuator for also attenuating the received signal;
- an initial-stage detection unit connected to said signal input of said initial-stage attenuator for providing a first power measurement;
- an intermediate-stage detection unit connected to said signal output of said initial-stage attenuator for providing a second power measurement;
- at least one additional intermediate-stage detection unit connected to said signal input of said final-stage attenuator for providing a third power measurement;
- a final-stage detection unit connected to said signal output of said final-stage attenuator;
- and
- a determining module connected to each of said detection units for determining a power measurement of the received signal.
Dependencies are inferred from the claim text.