Title:
JITTER CIRCUIT USED IN HIGH-PRECISION ANALOGUE-TO-DIGITAL CONVERTER
Document Type and Number:
WIPO Patent Application WO/2016/119133
Kind Code:
A1
Abstract:
A jitter circuit used in a high-precision analogue-to-digital converter, comprising: a settable pseudo random sequence generator (1) for generating a pseudo random sequence signal which is uncorrelated to an analogue input signal Vi and is settable, wherein an n-bit signal therein is used as a digital jitter signal; a trimming module (2) for accurately positioning a trimming signal which controls a trimmable DAC circuit (3), so as to calibrate the trimmable DAC circuit (3); the trimmable DAC circuit (3) which is controlled by the trimming signal to convert the received digital jitter signal into an analogue jitter signal; a jitter signal introducing circuit (4) for receiving the analogue jitter signal and the analogue input signal Vi, outputting an analogue signal after processing, and introducing an input of an analogue-to-digital converter (10); and a jitter signal removing circuit (5) for receiving the digital jitter signal, and removing the jitter signal from an output of the analogue-to-digital converter to obtain a final data output result DOUT. The present invention effectively reduces the complexity of a high-precision ADC converter system, and is applicable in the high-precision ADC converter for improving the dynamic nonlinearity thereof.
Inventors:
WANG YAN (CN)
HU GANGYI (CN)
LIU TAO (CN)
WANG YUXIN (CN)
WANG JIAN AN (CN)
FU DONGBING (CN)
LI TING (CN)
CHEN GUANGBING (CN)
HU GANGYI (CN)
LIU TAO (CN)
WANG YUXIN (CN)
WANG JIAN AN (CN)
FU DONGBING (CN)
LI TING (CN)
CHEN GUANGBING (CN)
Application Number:
PCT/CN2015/071683
Publication Date:
August 04, 2016
Filing Date:
January 28, 2015
Export Citation:
Assignee:
CHINA ELECTRONIC TECHNOLOGY CORP 24TH RES INST (CN)
International Classes:
H03M1/10
Foreign References:
| US5187481A | 1993-02-16 | |||
| US4914439A | 1990-04-03 | |||
| US7015851B1 | 2006-03-21 | |||
| US7221299B2 | 2007-05-22 | |||
| CN103560800A | 2014-02-05 |
Other References:
YU , JINSHAN ET AL.: "Dither Circuit to Improve Performance for a Radiation Hardening by Design Pipeline Analog to Digital Converter.", JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY, vol. 47, no. 1, 31 January 2013 (2013-01-31)
Attorney, Agent or Firm:
BEIJING YIGE INTELLECTUAL PROPERTY AGENT LTD(GENERAL PARTNERSHIP) (CN)
北京一格知识产权代理事务所(普通合伙) (CN)
北京一格知识产权代理事务所(普通合伙) (CN)
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