Title:
HIGH-SPEED SERIAL SIGNAL EQUALIZER AND HIGH-SPEED SERIAL INTERFACE
Document Type and Number:
WIPO Patent Application WO/2018/056100
Kind Code:
A1
Abstract:
A high-speed serial signal equalizer provided in a high-speed serial signal receiving unit and equipped with a filter for improving the frequency characteristic of a received signal. This filter has a variable filter circuit the frequency characteristic of which can be switched and a control signal input unit for inputting a control signal that switches frequency characteristics. The variable filter circuit includes a plurality of passive elements (C1-C7) and switch elements (SW1-SW7) for switching the connection states of the plurality of passive elements. The plurality of passive elements are provided in a passive circuit chip (110) in which a passive circuit is formed, and the switch elements (SW1-SW7) are provided in a digital control circuit chip (120).
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Inventors:
TAMAYAMA TAKEAKI (JP)
Application Number:
PCT/JP2017/032736
Publication Date:
March 29, 2018
Filing Date:
September 12, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04L25/03; H04B3/04
Foreign References:
| JPS6024737A | 1985-02-07 | |||
| JP2005308546A | 2005-11-04 | |||
| JPH08293581A | 1996-11-05 | |||
| JPH09331363A | 1997-12-22 | |||
| JPH0481015A | 1992-03-13 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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