发明名称 Systems and methods for clock synchronization in a data aquisition system
摘要 A system may include a sampling circuit, a temperature calibration system, a phase detector, a virtual phase-locked loop, and a sample rate converter. The sampling circuit may be configured to generate a series of digitally-sampled data at a sampling frequency provided by a local clock. The temperature calibration system may be configured to determine a temperature-based timing compensation with respect to the local clock. The phase detector may be configured to estimate an error of the local clock in view of the reference clock. The virtual phase-locked loop may be configured to generate a virtual clock based on the temperature-based timing compensation and the error. The sample rate converter may be configured to generate a corrected series of digitally-sampled data in response to the virtual clock by interpolating the series of digitally-sampled data to correct for the error.
申请公布号 GB201621440(D0) 申请公布日期 2017.02.01
申请号 GB20160021440 申请日期 2016.12.16
申请人 Cirrus Logic, Inc. 发明人
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