CTS时钟振荡器支持以太网应用

CTS时钟振荡器支持以太网应用，CTS Corporation (NYSE: CTS), founded in 1896, is a global leader in the design and manufacturing of a diverse array of electronic components, sensors and actuators.
CTS Corporation (NYSE: CTS)成立于1896年，是设计和制造各种电子石英晶振元件、传感器和执行器的全球领导者.

Primarily fulfilling the needs of original equipment manufacturers(OEMs), CTS is proud of its over 100-year heritage of innovativeproducts and engineering excellence. CTS products aremanufactured utilizing state-of-the-art technology driven by ahighly capable and dedicated staff.

In a current vertically integrated era, where applications such as complex data and video along with voice, are increasing in demand, advanced technologies of high-speed information transfer require continuous improvements of information sharing systems. The World Wide Web has become an essential tool in our daily life when it comes to accessing various types of information/business databases, video conferencing or manufacturing networks. Enabling efficient communication flow over existing infrastructure has become challenging in order to satisfy demanding user requirements. High-speed data/video and voice channels along with effective routing systems have been created as a result.

在当前的垂直集成时代，随着需求的增加，高速信息传输的先进技术要求改进信息共享系统。网络已成为我们日常生活中访问各种类型的信息/商业数据库、视频会议或制造网络。通过现有基础设施实现高效的通信流为了满足苛刻的用户要求，变得具有挑战性。高速数据/视频和语音因此，已经创建了具有有效路由系统的信道。
Data Networks

数据网络

For the purpose of this discussion, we can associate the flow of information within network channels to water flow within very complex system of pipelines of different shapes and sizes. Long haul channels that transfer information from state-to-state or city-to-city are called “TRUNKS”. Trunks connect multiple central office locations while utilizing fiber optics and high bandwidth cabling meshes along with highspeed routers and core switching systems. This accommodates the transfer of heavy masses of data packets (also called high band width data transporters). Once data packets reach a given central office destination (close-by to the final destination of the end user), they are transferred through soft-switching equipment to narrower data transport channels ultimately leading to the end-users (subscribers).

为了进行讨论，我们可以将网络渠道内的信息流与水在不同形状和尺寸的非常复杂的管道系统中流动。长途通道从一个州到另一个州或从一个城市到另一座城市的信息传递被称为“TRUNKS”。中继线连接多个中心办公室位置，同时利用光纤和高带宽布线网络以及高速路由器和核心交换系统。这可以容纳大量数据的传输数据包（也称为高带宽数据传送器）。一旦数据包到达给定的中心局目的地（靠近最终用户的最终目的地），它们通过软交换进行传输设备到更窄的数据传输信道，最终导致最终用户（订户）。

In many cases the subscribers are located within enterprises (i.e. business organizations, hospitals, office buildings, etc.) that share internal communication lines and network channels to support several business activities. In such cases, an internal high-speed network is typically installed.

在许多情况下，订阅者位于企业内部（即商业组织、医院、办公室建筑物等）共享内部通信线路和网络通道以支持多个业务活动。在这种情况下，通常会安装内部高速网络。

Ethernet Standard

以太网标准

Ethernet has evolved into the most widely implemented networking protocol today. Fast Ethernet increased the data speed from 10 Megabits per second (Mbits/s) to 100 Mbit/s to and from the users terminal. Gigabit Ethernet was the next iteration, increasing the speed to 1,000 Mbit/s. The initial standard for Gigabit Ethernet was issued by the IEEE in June 1998 as IEEE 802.3z.

以太网已发展成为当今实现最广泛的网络协议。而以太网需要进口晶体振荡器支持，快速以太网将往返用户的数据速度从每秒10兆比特提高到每秒100兆比特航空站千兆以太网是下一代，将速度提高到1000 Mbit/s。初始标准IEEE于1998年6月发布了用于千兆以太网的IEEE 802.3z。

Gigabit Ethernet access equipment is available in different speeds and bandwidth. Most common systems operate with 3.125Gbits/sec and 10Gbits/sec. 10 Gigabit Ethernet over twisted pair has just been completed, but as of June 2006, the only currently available adapters for copper wire requires special cabling and is limited to 15 meters for point-to-point communications. Major Gigabit Ethernet manufacturers include Cisco Systems, Broadcom (chipset manufacturer), Netgear, D-Link, Intel, Adtran and others.
千兆以太网接入设备有不同的速度和带宽。最常见系统以3.125Gbits/sec和10Gbits/sec运行。双绞线上的万兆以太网已完成，但截至2006年6月，目前唯一可用的铜线适配器需要特殊布线，点对点通信限制在15米以内。主要千兆以太网制造商包括Cisco Systems、Broadcom（芯片组制造商）、Netgear、D-Link、Intel、Adtran以及其他。CTS时钟振荡器支持以太网应用.

CTS如何支持千兆以太网产品？

As demands for networking and access applications grow, equipment manufacturers require high frequency reference clocks, sourced from clock oscillators at +/-50PPM accuracy with very low noise jitter performance of <1pS RMS over 12KHz to 20MHz bandwidth. Common frequencies required (may vary based on the chipset or design approach used by each equipment manufacturer) are listed below.

随着网络和接入应用需求的增长，设备制造商对频率参考时钟，来源于+/-50PPM精度的时钟有源晶体振荡器，具有非常低的噪声抖动在12KHz到20MHz带宽上的<1pS RMS性能。所需的通用频率（可能有所不同基于每个设备制造商使用的芯片组或设计方法）如下所列。

3.125 Gbit/sec system; 25MHz, 50MHz, 62.5MHzor 125MHz (in LVCMOS output technology)

10Gbit/sec system; 156.25MHz (in LVCMOS or LVPECL output technology)
带有LVCMOS或LVPECL的CTS型号CB3LV或635是合适的时钟振荡器 用于千兆以太网应用。两个产品系列都符合RoHS标准。