Title:
TIME-INTERLEAVED SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER AND CALIBRATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/114939
Kind Code:
A1
Abstract:
A time-interleaved successive approximation analog to digital converter (TISAR ADC) and a calibration method thereof. The TISAR ADC calibration method comprises: performing sampling of an analog signal input into the TISAR ADC, so as to generate a reference digital signal (S130); according to the reference digital signal and an output digital signal generated by each analog-to-digital conversion sub-module of the TISAR ADC, obtaining a capacitance array calibration parameter of each of the analog-to-digital conversion sub-modules and a time delay calibration parameter of each of the analog-to-digital conversion sub-modules (S140); according to each of the capacitance array calibration parameters, adjusting capacitance arrays of the corresponding analog-to-digital conversion sub-modules (S150); according to each of the time delay calibration parameters, adjusting time delays of the corresponding analog-to-digital conversion sub-modules (S160).
Inventors:
WANG YI (CN)
ZHOU HONGXING (CN)
ZHANG ZHE (CN)
ZHANG ZUOFENG (CN)
NING DONGFANG (CN)
ZHOU HONGXING (CN)
ZHANG ZHE (CN)
ZHANG ZUOFENG (CN)
NING DONGFANG (CN)
Application Number:
PCT/CN2020/124982
Publication Date:
June 17, 2021
Filing Date:
October 29, 2020
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H03M1/10; H03M1/12
Domestic Patent References:
| WO2019098981A1 | 2019-05-23 |
Foreign References:
| CN108471313A | 2018-08-31 | |||
| CN109861691A | 2019-06-07 | |||
| CN109361392A | 2019-02-19 |
Other References:
See also references of EP 4072021A4
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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