Circuitry including an RF front end circuit
First Claim
1. Circuitry comprising:
- a first Radio frequency front-end (RFFE) circuit coupled to an RFFE serial communications bus and adapted to;
detect a first command, which is provided on the RFFE serial communications bus by a control system;
determine clock information that is associated and provided with the first command; and
generate a first clock signal based on the clock information; and
at least a second RFFE circuit, such that each of the at least the second RFFE circuit is coupled to the RFFE serial communications bus.
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0 Petitions
Accused Products
Abstract
The present disclosure relates to RF front-end (RFFE) circuitry that includes multiple RFFE circuits, each of which may be provided by a separate integrated circuit (IC), front-end module, or both. As such, the RFFE circuits may be connected to one another using an RFFE serial communications bus. Further, one or more of the RFFE circuits may need an accurate clock source for analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), calibration, sensor measurements, or the like. Instead of including an integral clock source circuit or receiving a separate external clock signal, an RFFE circuit may extract clock information from the RFFE serial communications bus to provide one or more clock signal. The clock information may be associated with one or more serial communications command via the RFFE serial communications bus.
10 Citations
26 Claims
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1. Circuitry comprising:
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a first Radio frequency front-end (RFFE) circuit coupled to an RFFE serial communications bus and adapted to; detect a first command, which is provided on the RFFE serial communications bus by a control system; determine clock information that is associated and provided with the first command; and generate a first clock signal based on the clock information; and at least a second RFFE circuit, such that each of the at least the second RFFE circuit is coupled to the RFFE serial communications bus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method comprising:
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providing a first radio frequency front-end (RFFE) circuit coupled to an RFFE serial communications bus; detecting a first command, which is provided on the RFFE serial communications bus by a control system; determining clock information that is associated and provided with the first command; and generating a first clock signal based on the clock information; and providing at least a second RFFE circuit, such that each of the at least the second RFFE circuit is coupled to the RFFE serial communications bus.
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Specification