Receiver pin connection circuit based on 10g EPON ONU BOB optical module

Abstract

The invention discloses a 10G EPON ONU BOB optical module-based receiving end hard pin connection circuit, which comprises a CPU module, a PMD module and a BOSA module, and is characterized in that the CPU module is connected with the PMD module through a differential line, and the PMD module is connected with the BOSA module through a differential line; the LED lamp further comprises a boosting module. The output end of the PMD module is connected with the input end of the boost module through a PWM wire and an FB wire of an APD. The output end of the boost module is connected with the receiving end of the BOSA module through a BIAS wire of an APD, and an RX + pin and an RX-pin of the BOSA module are connected with the input end of the PMD module through differential wires. According to the invention, the TO46 gold pin of the receiving end of the optical device does not pass through a flexible circuit board through various modes of optimizing PWM and FB wiring of the APD, shortening the length of a differential line and carrying out impedance control, independently supplying power to the receiving end circuit of the BOSA module and the like; and moreover, the sensitivity and the bit error rate level are not worse than those of a circuit connected by using a flexible circuit board, so that the production process difficulty and the material cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and in particular relates to a receiving end pin connection circuit based on a 10G EPON ONU BOB optical module. Background technique [0002] 10G EPON is designed with reference to the standard IEEE 802.3av. There are already many applications of 10G EPON at this stage. The 10G EPON deployed in the global network has begun to take shape, most of which are concentrated in China. China Telecom has conducted several 10G EPON performance tests. The 10G EPON equipment is mature and has interoperability. It can be commercialized in FTTB application scenarios, and the user MDU cost is only increased by 5% to 20%, and the bandwidth is increased by 10%. times, the cost per M bandwidth drops significantly. [0003] Home gateway (ONU) products applied to 10G PON networks use a transmission rate of 10.3125Gbps in the downlink direction, and in order to improve the optical signal gain, th...

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Problems solved by technology

[0005] The object of the present invention is to provide the receiving end pin connection circuit based on 10G EPON ONU BOB optical module, be used to solve the problem in the prior art, as: the current market mainstream design scheme is to use flexible circuit board (FPC) to connect to reduce The impact of impedance mismatch on high-speed signals; however, the use of flexible circuit boards to ensure product performance also brings many problems, such as high processing difficulty, difficulty in achieving a high degree of automated production, and high material costs

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