Title:
CONTINUOUS TIME BAND-PASS SIGMA-DELTA MODULATOR AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/092863
Kind Code:
A1
Abstract:
Provided in the present invention are a continuous time band-pass Sigma-Delta modulator and an electronic device, the continuous time band-pass Sigma-Delta modulator comprising a transconductance operational amplifier, a passive resonator, a sampling quantizer, a current feedback module and a voltage feedback module. The present invention designs the continuous time band-pass Sigma-Delta modulator by combining the transconductance operational amplifier, the passive resonator, the sampling quantizer, the current feedback module and the voltage feedback module, and adds voltage feedback on the basis of conventional current feedback, such that current feedback and voltage feedback can be achieved at the same time, thereby increasing the degree of freedom of feedback; and the whole modulator can achieve any noise transfer function of a band-pass Sigma-Delta modulator, thereby effectively solving the problem that the system performances of continuous time band-pass Sigma-Delta modulators based on inductor-capacitor resonators are limited due to the absence of the degree of freedom of feedback, and improving the performances of modulators.
Inventors:
LUO YONGSHUANG (CN)
YANG NAN (CN)
WAN XIANJIE (CN)
WANG YOUHUA (CN)
ZHU CAN (CN)
FU DONGBING (CN)
YANG NAN (CN)
WAN XIANJIE (CN)
WANG YOUHUA (CN)
ZHU CAN (CN)
FU DONGBING (CN)
Application Number:
PCT/CN2022/130870
Publication Date:
May 10, 2024
Filing Date:
November 09, 2022
Export Citation:
Assignee:
CHONGQING GIGACHIP TECH CO LTD (CN)
International Classes:
H03M3/00
Foreign References:
| US20150280733A1 | 2015-10-01 | |||
| CN102904590A | 2013-01-30 | |||
| US6693572B1 | 2004-02-17 | |||
| CN102832948A | 2012-12-19 | |||
| CN101917198A | 2010-12-15 |
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (GENERAL PARTNERSHIP) (CN)
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