用于 IEEE1588 和同步以太网的 Renesas DPLL(数字 PLL)专为实现整个分组交换网络中的同步化而设计。 对于 IEEE 1588 应用,可将嵌入式 DCO(数控振荡器)用作低抖动合成器来完成 IEEE 1588 时钟恢复算法。 对于同步以太网应用,DPLL 符合 EEC(同步以太网设备时钟)的 ITU-T 建议;这些器件还符合 SONET/SDH、PDH 和 TDM 同步要求。 Renesas 的 DPLL 可在 IEEE 1588 DCO 与 SyncE 模式之间切换,并提供了下列功能:可选环路滤波器、延迟、不中断参考切换、相位斜率限制和时钟冗余。
下载 Altera 和 IDT 针对 ITU-T G.8262 的同步以太网解决方案白皮书
IEEE 1588 是一个精密时间协议 (PTP),用于同步计算机网络中的时钟。 在局域网中,它能将时钟精确度控制在亚微秒范围内,使其适于测量和控制系统。 IEEE 1588 标准为时钟分配定义了一个主从式架构,由一个或多个网段及一个或多个时钟组成。 Renesas 通过其业内领先的高性能解决方案组合,满足了 IEEE 1588 的计时需求。
同步以太网是关于计算机网络的 ITU-T 标准,定义了如何在以太网物理层中传送时钟信号。 同步以太网的目的是为网络中的各种资源提供同步信号。 同步以太网信号在以太网物理层中传输,并应能追溯至一个外部时钟。 应用包括路由器、多业务交换平台、PON(无源光网络)和 DSLAM(数字用户线接入多路复用器)。 作为唯一拥有各种不同计时元件并能提供完整解决方案的供应商,Renesas 具有独特的优势,可满足通信设备供应商的各种需求,并能针对所有计时交换架构提供具有竞争力的解决方案。
应用 |
Clock Support |
Channels (#) |
Inputs (#) |
Diff. Inputs |
Input Freq (MHz) |
Output Freq Range (MHz) |
Phase Jitter Typ RMS (ps) |
Diff. Outputs |
Outputs (#) |
Pkg. Type |
Lead Count (#) |
Price (USD) | 1ku |
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器件号 | |||||||||||||
IEEE 1588 六通道系统同步器 | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 6 | 8 | 4 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.1 | 14 | 24 | CABGA | 144 | |
VCXO Jitter Attenuator & FemtoClock® Multiplier | Port Synchronizer | 1 | 2 | 2 | 0.008 - 155.52 | 25 - 312.5 | 0.3 | 2 | 2 | VFQFPN | 32 | 33.94 | |
System Synchronizer for IEEE 1588 - Eight Channels | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 8 | 16 | 8 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.15 | 12 | 24 | CABGA | 144 | 54.23 |
IEEE 1588 四通道系统同步器 | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 4 | 14 | 7 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.15 | 8 | 16 | VFQFPN | 72 | 36.8 |
System Synchronizer for IEEE 1588 - Four Channels | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 4 | 4 | 2 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.15 | 4 | 8 | VFQFPN | 48 | 41.34 |
System Synchronizer for IEEE 1588 - Two Channels | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 2 | 4 | 2 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.15 | 4 | 8 | VFQFPN | 48 | |
System Synchronizer for IEEE 1588 - Four Channels | Low-cTE Timing Card, PTP Timing Card, SETS | G.813, G.8262, G.8262.1, G.8273.2, GR-253-CORE, GR-1244-CORE | 4 | 4 | 2 | 0.0000005 - 1000 | 0.0000005 - 1000 | 0.15 | 12 | 24 | VFQFPN | 72 | |
Line Card Synchronizer for IEEE 1588 - Eight Channels | Low-cTE Line Card, PTP Line Card | 8 | 16 | 8 | 0.001 - 1000 | 0.0000005 - 1000 | 0.15 | 12 | 24 | CABGA | 144 | 43.8 | |
Line Card Synchronizer for IEEE 1588 - Four Channels | Low-cTE Line Card, PTP Line Card | 4 | 14 | 7 | 0.001 - 1000 | 0.0000005 - 1000 | 0.15 | 8 | 16 | VFQFPN | 72 | 34.81 | |
Line Card Synchronizer for IEEE 1588 - Four Channels | Low-cTE Line Card, PTP Line Card | 4 | 4 | 2 | 0.001 - 1000 | 0.0000005 - 1000 | 0.15 | 4 | 8 | VFQFPN | 48 | 29.43 | |
SETS for SyncE and OTN | SETS, System Synchronizer | G.813, G.8262, G.8262.1, GR-253-CORE, GR-1244-CORE | 4 | 8 | 4 | 0.001 - 1000 | 0.0000005 - 1000 | 0.15 | 12 | 24 | VFQFPN | 72 | |
FemtoClock™ NG Universal Frequency Translator | Jitter Attenuator, Port Synchronizer | 1 | 2 | 2 | 0.008 - 875 | 0.008 - 1000 | 0.2 | 4 | 4 | VFQFPN | 40 | 9.551 | |
FemtoClock™ NG Universal Frequency Translator | Jitter Attenuator, Port Synchronizer | 1 | 2 | 2 | 0.008 - 875 | 0.008 - 1000 | 0.35 | 4 | 4 | VFQFPN | 40 | 6.081 | |
FemtoClock™ NG Universal Frequency Translator | Jitter Attenuator, Port Synchronizer | 1 | 2 | 2 | 0.008 - 875 | 0.008 - 1000 | 0.276 | 4 | 4 | VFQFPN | 40 | 5.795 | |
FemtoClock NG Universal Frequency Translator (2-in/1-PLL/8-out) | Jitter Attenuator, Port Synchronizer | 2 | 2 | 4 | 0.008 - 875 | 0.008 - 1000 | 0.28 | 8 | 8 | VFQFPN | 56 | 9.973 | |
FemtoClock NG Universal Frequency Translator (4-in/2-PLL/8-out) | Jitter Attenuator, Port Synchronizer | 2 | 4 | 4 | 0.008 - 875 | 0.008 - 1000 | 0.28 | 8 | 8 | VFQFPN | 72 | 12.73 | |
FemtoClock NG Universal Frequency Translator (2-in/2-PLL/8-out) | Jitter Attenuator, Port Synchronizer | 2 | 2 | 2 | 0.008 - 875 | 0.008 - 1000 | 0.28 | 8 | 8 | VFQFPN | 56 | 12.99 | |
FemtoClock™ NG 12-Output Clock Generator | Clock Generator | 1 | 2 | 2 | 5 - 1000 | 10.91 - 2500 | 0.095 | 11 | 12 | VFQFPN | 64 | ||
FemtoClock™ NG 12-Output Clock Generator | Clock Generator | 1 | 2 | 2 | 5 - 1000 | 10.91 - 2500 | 0.089 | 11 | 12 | VFQFPN | 64 | 14.63 | |
FemtoClock™ NG 12-Output Clock Generator | Clock Generator | 1 | 2 | 2 | 5 - 1000 | 10.91 - 2500 | 0.08 | 11 | 12 | VFQFPN | 64 | ||
VersaClock® 7 可编程抖动衰减器系列 | Jitter Attenuator for PHY or Switches, Routers, Switches and more... |
G.8262, G.8262.1, T-TSC | 2 | 2 | 1 - 650 | 0.001 - 650 | 0.15 | 5, 8, 12 | 16, 24 | LGA | 32, 40, 48 | ||
Radio Access Network Equipment Synchronizer - Six Channels | Centralized Unit (CU), Distributed Unit (DU), Radio Unit (RU) and more... |
6 | 10 | 5 | 0.001 - 1000 | 0.0000005 - 1000 | 0.15 | 12 | 24 | VFQFPN | 72 |
The ClockMatrix™ 2 family of devices are high-performance, precision timing solutions designed to simplify clock designs for applications with up to 800Gbps interface speeds. This second-generation family delivers improved performance with phase jitter as low as 88fs RMS. The highly integrated devices serve as full-function IEEE 1588 synchronization clocks and ultra-low jitter reference clocks for synchronous Ethernet PHYs with data rates up to 112Gbps PAM-4, reducing design complexity and bill of materials (BOM). Visit renesas.com/clockmatrix to learn more.