Integrated processor and CDR circuit
View Patent ↗A system may include a clock and data recovery circuit that includes one or more analog components. The system may also include a digital control circuit configured to control the clock and data recovery circuit. The digital control circuit and the clock and data recovery circuit may be formed on a single substrate.
1. A system comprising:
a plurality of clock and data recovery circuits, each clock and data recovery circuit comprising a conditioning circuit, a clock-generating circuit, and a driver circuit, at least one of the conditioning circuit, the clock-generating circuit, and the driver circuit including one or more analog components; and
a digital control circuit configured to control the conditioning circuits of each of the clock and data recovery circuits as a first control group, the clock-generating circuits of each of the clock and data recovery circuits as a second control group, and the driver circuits of each of the clock and data recovery circuits as a third control group, wherein the digital control circuit is configured to control each of the first, second, and third control groups in a similar manner or in a different manner, wherein the digital control circuit and the plurality of clock and data recovery circuits are formed on a single substrate.
2. A system comprising:
a clock and data recovery circuit comprising one or more analog components that include a bipolar junction transistor; and
a processor comprising a complementary metal-oxide semiconductor transistor, the processor configured to adaptively control the clock and data recovery circuit based on data received from the clock and data recovery circuit, to direct storing of the data received from the clock and data recovery circuit, and to adaptively control the clock and data recovery circuit based on previously stored data that includes a data rate of a previously received data signal, the processor adaptively controlling the clock and data recovery circuit by directing the clock and data recovery circuit to begin at the data rate of the previously received data signal when locking to a data signal, wherein the processor and the clock and data recovery circuit are formed on a single substrate.
3. The system of claim 2 , wherein the processor adaptively controls the clock and data recovery circuit based on a relationship between a signal integrity of the data signal received by the clock and data recovery circuit and power consumption of the clock and data recovery circuit.
4. The system of claim 2 , wherein the processor is configured to adaptively adjust settings of a charge pump within the clock and data recovery circuit based on the data received from the clock and data recovery circuit.
5. The system of claim 4 , wherein the processor is configured to increase voltage rail levels of the charge pump after the clock and data recovery circuit locks to the data signal received by the clock and data recovery circuit.
6. The system of claim 2 , wherein the processor is configured to adaptively adjust settings of a voltage controlled oscillator within the clock and data recovery circuit based on the data received from the clock and data recovery circuit.