US 12,170,862 B2
10G rate OLT terminal transceiver integrated chip based on XGPON with DFB laser
Jinghu Li, Xiamen (CN); An Lin, Xiamen (CN); and Zhang Fan, Xiamen (CN)
Filed by XIAMEN EOCHIP SEMICONDUCTOR CO., LTD, Xiamen (CN)
Filed on May 24, 2023, as Appl. No. 18/323,352.
Claims priority of application No. 202210575982.1 (CN), filed on May 24, 2022.
Prior Publication US 2023/0388682 A1, Nov. 30, 2023
Int. Cl. H04B 10/038 (2013.01); H04B 10/079 (2013.01); H04Q 11/00 (2006.01)
CPC H04Q 11/0067 (2013.01) [H04B 10/038 (2013.01); H04B 10/0795 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A 10 G rate OLT terminal transceiver integrated chip based on XGPON and DFB laser, comprising:
a burst mode receiver RX, a continuous mode transmitter TX and a digital control unit DIGIITAL,
wherein an optical signal received from each one ONU client is processed through a burst TIA into an electrical signal, then the burst-mode receiver RX amplifies the electrical signal, processes double-detection for amplitude and frequency of the electrical signal, to determine if an amplitude and a waveform pulse width of the electrical signal meet threshold requirements related to meeting a XGPON protocol, and outputs a detection result of the electrical signal to a host, and uses a fast recovery module to control a timing to meet the XGPON protocol;
the continuous mode transmitter TX receives an original high speed electrical signal attenuated by a PCB board, and in response to a degree of attenuation, selects a bypass BYPASS path for transmission or outputs the signal after a signal quality is improved by processing through a clock data recovery CDR path; and
the digital control unit DIGIITAL is used to provide control signals for the burst mode receiver RX and the continuous mode transmitter TX.