Transmit power management for a communication device and method for use therewith
View Patent ↗In integrated circuit includes a processing module that determines a selected one of the plurality of power modes based on a function being currently performed by at least one non-transceiver module of a host device, and generates a power mode signal based on the selected one of the plurality of power modes. An RF transmitter generates a transmit signal at a selected one of the plurality of operating power levels based on the power mode signal and that operates from at least one transmitter power supply signal generated and selected by a power management circuit in response to the power mode signal.
1. A radio frequency (RF) integrated circuit (IC) comprising:
a processing module that executes at least one application that controls at least one non-transceiver module of a host device and that determines a selected one of a plurality of power modes based on use characteristics of the at least one application, and that generates a power mode signal based on the selected one of the plurality of power modes; and
an RF transmitter, coupled to the processing module, that generates a transmit signal, the RF transmitter that operates in a selected one of the plurality of operating modes based on the power mode signal and that operates from at least one transmitter power supply signal generated and selected by a power management circuit in response to the power mode signal.
2. The RF IC of claim 1 wherein the power management circuit is coupled to the processing module, and wherein the power management circuit receives the power mode signal and generates a plurality of power supply signals including the at least one transmitter power supply signal.
3. The RF IC of claim 2 wherein the power management circuit includes an off-chip circuit.
4. The RF IC of claim 2 wherein the power management circuit includes an on-chip circuit that is implemented on the voice data and RF IC.
5. The RF IC of claim 1 wherein the power management circuit generates an additional transmitter power supply signal in response to the power mode signal.
6. The RF IC of claim 1 wherein the power management circuit generates a first transmitter power supply signal having a first current limit in response to a first value of the power mode signal, and a second transmitter power supply signal having a second current limit in response to a second value of the power mode signal.
7. The RF IC of claim 1 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal, and a second transmitter power supply signal having a second supply voltage in response to a second value of the power mode signal.
8. The RF IC of claim 1 wherein the RF transmitter includes a plurality of power amplifiers and a switching network coupled to the plurality of power amplifiers, the switching network coupling the transmit signal from the plurality of power amplifiers in response to the power mode signal.
9. The RF IC of claim 8 wherein the plurality of power amplifiers are configured in series.
10. The RF IC of claim 8 wherein the plurality of power amplifiers are configured in parallel.
11. An integrated circuit (IC) comprising:
a processing module that determines a selected one of the plurality of power modes based on a function being currently performed by at least one non-transceiver module of a host device, and generates a power mode signal based on the selected one of the plurality of power modes; and
an RF transmitter, coupled to the processing module, that operates from at least one transmitter power supply signal generated and selected by a power management circuit in response to the power mode signal.
12. The IC of claim 11 wherein the power management circuit is coupled to the processing module, and wherein the power management circuit receives the power mode signal and generates a plurality of power supply signals including the at least one transmitter power supply signal.
13. The IC of claim 12 wherein the power management circuit includes an off-chip circuit.
14. The IC of claim 12 wherein the power management circuit includes an on-chip circuit that is implemented on the IC.
15. The IC of claim 11 wherein the power management circuit generates an additional transmitter power supply signal in response to the power mode signal.
16. The IC of claim 11 wherein the power management circuit generates a first transmitter power supply signal having a first current limit in response to a first value of the power mode signal, and a second transmitter power supply signal having a second current limit in response to a second value of the power mode signal.
17. The IC of claim 11 wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal, and a second transmitter power supply signal having a second supply voltage in response to a second value of the power mode signal.
18. The IC of claim 11 wherein the RF transmitter generates a transmit signal at a selected one of the plurality of transmit power modes based on the power mode signal.
19. The IC of claim 18 wherein the RF transmitter includes a plurality of power amplifiers and a switching network coupled to the plurality of power amplifiers, the switching network coupling the transmit signal from the plurality of power amplifiers in response to the power mode signal.
20. An integrated circuit (IC) comprising:
a processing module that determines a selected one of the plurality of power modes based on a function being currently performed by at least one non-transceiver module of a host device, and generates a power mode signal based on the selected one of the plurality of power modes; and
an RF transmitter, coupled to the processing module, that operates from at least one transmitter power supply signal generated and selected by a power management circuit in response to the power mode signal, wherein the power management circuit generates a first transmitter power supply signal having a first supply voltage in response to a first value of the power mode signal, and a second transmitter power supply signal having a second supply voltage in response to a second value of the power mode signal.