Title:
RECEIVING AND SENDING INTEGRATED CHIP FOR OLT
Document Type and Number:
WIPO Patent Application WO/2018/192497
Kind Code:
A1
Abstract:
A receiving and sending integrated chip for an OLT, which relates to the field of integrated circuits and optical communications. The present invention aims at resolving the problem of high production costs and long production cycle due to the fact that the functions of a limiting amplifier and a laser driver of a traditional OLT end optical module based on a GPON and an EPON are implemented by means of two circuit chips. The present invention provides two solutions. The first solution is designed based on the EPON, a transmitter threshold value configuration mode is that the threshold value configuration is implemented after an upper computer and a slave I2C circuit in the chip cooperate to complete electrifying, and LOS signal determination in a receiver can be automatically reset by means of a chip internal module. The second solution is designed based on the GPON, the transmitter threshold value configuration mode is that the threshold value configuration is implemented after the upper computer and the slave I2C circuit in the chip cooperate to complete electrifying, LOS signal determination in the receiver can be automatically reset by means of the chip internal module and can also be manually reset by means of chip external RESET signals in cooperation with a corresponding peripheral circuit, and LOS and SD signal output selection pins are arranged.
Inventors:
LI JINGHU (CN)
FAN ZHANG (CN)
TU HANGHUI (CN)
FAN ZHANG (CN)
TU HANGHUI (CN)
Application Number:
PCT/CN2018/083407
Publication Date:
October 25, 2018
Filing Date:
April 17, 2018
Export Citation:
Assignee:
FUJIAN EOCHIP SEMICONDUCTOR CO LTD (CN)
International Classes:
H04Q11/00
Foreign References:
| CN102255656A | 2011-11-23 | |||
| CN101145848A | 2008-03-19 | |||
| CN106330323A | 2017-01-11 | |||
| CN106358094A | 2017-01-25 | |||
| US20150195039A1 | 2015-07-09 | |||
| CN102624449A | 2012-08-01 |
Attorney, Agent or Firm:
HARBIN SONGHUAJIANG PATENT TRADEMARK OFFICE (CN)
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