HIGH-SPEED OPTICAL TRANSCEIVER CHIP DRIVE CIRCUIT HAVING PHASE DELAY COMPENSATION FUNCTION

• Main Authors: LUO, Zhicong, LIN, An, LIN, Qipeng, FAN, Zhang, CHEN, Fujie, YU, Jianhai, TU, Hanghui, LI, Jinghu
• Format: Patent
• Language: Chinese; English; French
• Published: 23.06.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

A high-speed optical transceiver chip drive circuit having a phase delay compensation function, belonging to the field of optical communication integrated circuits. The present invention aims to solve the problem that a receiving-end CML drive circuit or a transmitting-end laser drive circuit cannot use the traditional de-emphasis to compensate a group delay and phase delay difference after a high-speed signal passes through a back plate (laser device). The present invention comprises a transmitting-end drive circuit and a receiving-end drive circuit, wherein the transmitting-end drive circuit is configured to drive the laser device to emit light and transmit a signal, and the receiving-end drive circuit is configured to optimize signal degradation caused by a signal, which is sent to the laser device by the transmitting-end drive circuit, passing through a transmission back plate; a long code phase lead adjustment circuit is provided on a main channel of the transmitting-end drive circuit, and a long code ph