In the optical network using time division multiple access protocol, burst synchronization is a key technology, which generally adopts the keyword detection method based on multi-phase clock. Based on the research on asynchronous transmission mode-passive optical network, the burst synchronization design of AS1773 protocol is proposed. The 20 Mbps burst synchronizer is realized by high-speed field programmable gate array, which simplifies the circuit design. Compared with the traditional ASIC design scheme, it has the advantages of low development cost and short development cycle. Keywords AS1773 bus; bus controller; burst synchronization; remote terminalAbstract This paper Burst mode synchronization is a key techno logy in passive optical network that utilizes time division multi access (TDMA) with single mode fiber. For the clock recovery in burst mode transmission, a burst mode synchronizer using keyword detection based on multiphase clock is usually used. In this article, based on research in asynchronous transfer moder-passive optical network, author described a method to design burst synchronizer in AS1773 protocol. This synchronizer is implemented by field programmable gate array, which can achieve high performance with low cost, short developing period.Key words AS1773; bus controller; burst synchronization; remote terminal
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