TI DS90UB913(4)Q百万象素照相机FPD－Link III接口解决方案

TI公司的DS90UB913Q/DS90UB914Q芯片组是10-100MHz 10/12位FPD-Link III SER/DES,提供高速FPD-Link III接口和高速正向通路以及用于差分对上数据发送的双向控制通路,主要用在图像和汽车ECU的视频处理器间的连接,主要用在汽车视频系统,防碰撞系统的前端照相机,后视镜照相机和停车系统辅助管理.本文介绍了DS90UB913Q/DS90UB914Q主要特性,框图和应用框图以及DS90UB913Q/914Q评估板主要特性,电路图和PCB布局图.
The DS90UB913Q/DS90UB914Q chipset offers a FPD-Link III interface with a high-speed forward channel and a bidirectional control channel for data transmission over a single differential pair. The DS90UB913Q/914Q chipsets incorporate differential signaling on both the high-speed forward channel and bidirectional control channel data paths. The Serializer/ Deserializer pair is targeted for connections between imagers and video processors in an ECU (Electronic Control Unit). This chipset is ideally suited for driving video data requiring up to 12 bit pixel depth plus two synchronization signals along with bidirectional control channel bus.
There is a multiplexer at the Deserializer to choose between two input imagers. The Deserializer can have only one active input imager. The primary video transport converts 10/12 bit data over a single high-speed serial stream, along with a separate low latency bidirectional control channel transport that accepts control information from an I2C port and is independent of video blanking period.
Using TI’s embedded clock technology allows transparent fullduplex communication over a single differential pair, carrying asymmetrical bidirectional control channel information in both directions. This single serial stream simplifies transferring a wide data bus over PCB traces and cable by eliminating the skew problems between parallel data and clock paths. This significantly saves system cost by narrowing data paths that in turn reduce PCB layers, cable width, and connector size and pins. In addition, the Deserializer inputs provide adaptive equalization to com...