Title:
PHASE INERPOLATOR CIRCUIT AND METHOD FOR IMPROVING LINEARITY THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/120555
Kind Code:
A1
Abstract:
The present invention discloses a phase interpolator circuit and a method for improving the linearity thereof, the phase interpolator circuit comprising: N phase interpolator units, N≥2; a phase interpolator unit comprises a differential switch tube circuit, a current control circuit, and a bias current circuit, the differential switch tube circuit comprising a first switch tube and a second switch tube, wherein the first switch tube is connected to a clock signal input terminal, a negative signal output terminal, and the current control circuit, while the second switch tube is connected to the clock signal input terminal, a positive signal output terminal, and the current control circuit; the current control circuit is connected to a control signal input terminal, the differential switch tube circuit, and the bias current circuit; the bias current circuit is connected to a reference signal input terminal, the current control circuit, and ground.
Inventors:
YI SHENGTAO (CN)
Application Number:
PCT/CN2017/082609
Publication Date:
July 05, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
SANECHIPS TECH CO LTD (CN)
International Classes:
H03K5/135
Foreign References:
| CN105991112A | 2016-10-05 | |||
| CN103795404A | 2014-05-14 | |||
| CN103297004A | 2013-09-11 | |||
| CN1761184A | 2006-04-19 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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