Invention Application
- Patent Title: COMMON-MODE RIPPLE CORRECTION FOR HIGH-SPEED TRANSMITTERS
- Patent Title (中): 用于高速发射机的共模纹波校正
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Application No.: US14715862Application Date: 2015-05-19
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Publication No.: US20160315641A1Publication Date: 2016-10-27
- Inventor: Bharath Raghavan
- Applicant: Broadcom Corporation
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
In some aspects, the disclosure is directed to methods and systems for common-mode ripple correction for high-speed transmitters. In one or more embodiments, the system includes a driver circuit of a complementary metal-oxide semiconductor (CMOS) transmitter. In one or more embodiments, the driver circuit has an output common-mode. In one or more embodiments, the system includes a predriver circuit with an output in electrical communication with an input of the driver circuit. In one or more embodiments, a comparator generates a control signal using a difference between an average signal value of the output common-mode and a target value. In one or more embodiments, the comparator block generates signals which can be used to adjust the strength of at least one of a pull-up path or a pull-down path in the predriver circuit.
Information query