Title:
CIRCUIT FOR GENERATING MULTI-PHASE CLOCK HAVING RANDOM DISTURBANCE ADDED THERETO
Document Type and Number:
WIPO Patent Application WO/2020/019633
Kind Code:
A1
Abstract:
Disclosed is a circuit for generating a multi-phase clock having random disturbance added thereto. The circuit for generating a clock comprises a main clock module, a random signal generation module and a buffer matrix switch module, wherein the main clock module is used for generating N multi-phase clock signals; and the buffer matrix switch module is used for randomly switching, under the control of a random control signal output by the random signal generation module, transmission paths of the input N multi-phase clock signals, and outputting N multi-phase clock signals to which random disturbance is added. In the present invention, by whitening a clock phase error by means of adding random disturbance, only with a small loss of signal-to-noise ratio, the influence of a multi-phase clock phase error on the performance of a high-precision TI ADC can be eliminated in real time, and the influence of the fluctuation of a clock phase error along with a change in a working environment can be tracked and eliminated, a spurious error component at a fixed frequency is whitened to a noise floor without interrupting the normal operation of the TI ADC, the design is simple to realize, and the stability is high.
Inventors:
PU JIE (CN)
HU GANGYI (CN)
FU DONGBING (CN)
ZHANG ZHENGPING (CN)
LI LIANG (CN)
LI TING (CN)
XU DAIGUO (CN)
XU MINGYUAN (CN)
SHEN XIAOFENG (CN)
WAN XIANJIE (CN)
WANG YOUHUA (CN)
HU GANGYI (CN)
FU DONGBING (CN)
ZHANG ZHENGPING (CN)
LI LIANG (CN)
LI TING (CN)
XU DAIGUO (CN)
XU MINGYUAN (CN)
SHEN XIAOFENG (CN)
WAN XIANJIE (CN)
WANG YOUHUA (CN)
Application Number:
PCT/CN2018/120792
Publication Date:
January 30, 2020
Filing Date:
December 13, 2018
Export Citation:
Assignee:
NO 24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECH GROUP CORPORATION (CN)
International Classes:
G06F1/04
Foreign References:
| CN1480814A | 2004-03-10 | |||
| CN103840796A | 2014-06-04 | |||
| CN105099806A | 2015-11-25 | |||
| US6208580B1 | 2001-03-27 |
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (GENERAL PARTNERSHIP) (CN)
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