AD8155是一款与协议无关的异步、双通道2:1开关，共有六路差分CML输入和六路差分CML输出。信号路径支持NRZ信令，每个通道的数据速率最高达6.5 Gbps。各通道均提供可编程接收均衡、可编程输出预加重、可编程输出电平和信号丢失检测。
The AD8155 features a non-blocking switching core with a 2:1 multiplexer and a 1:2 demultiplexer on each channel, and supports independent channel switching via two selector pins SEL [1:0]. Each port is a dual-channel link. Each channel uses an asynchronous path and supports NRZ data rates from DC to 6.5 Gbps. The channels are independent of each other. The AD8155 features low latency and very low channel-to-channel skew.
The AD8155 is primarily used to support backplane-side and line-interface side redundancy for serial links. The demultiplexing path has both unicast and duplex capability, so the device supports 1+1 or 1:1 redundancy.
The AD8155 is capable of replicating input data and is also suitable for testing high-speed serial links. In port monitoring applications, the AD8155 can maintain link connectivity by leveraging a pass-through connection from port C to port A while sending a copy of the data to the test device on port B.
The AD8155 is feature-rich and can be controlled either by an external toggle pin or by setting up an on-chip control register via the I2C interface.
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低成本冗余开关
SONET OC48/SDH16及更低的数据速率
背板RXAUI、4x光纤通道、无限带宽、千兆以太网
背板OIF CEI 6.25 Gbps
串行数据电平转换
2/4/6通道均衡器或再驱动器