[原创] IDT 9ZXL1951D 19路输出零延迟时钟驱动器方案

IDT公司的9ZXL1951D是19路输出零延迟时钟驱动器,具有用于PCIe和CPU的第二代增强性能缓冲器,满足所有发表过的QPI/UPI, DB2000Q和PCIe Gen1–5抖动指标.器件的ZDB模式相位抖动器: PCIe Gen5 CC < 24fs RMS (低带宽),QPI/UPI 11.4GB/s < 110fs RMS (低带宽),IF-UPI附加抖动< 130fs RMS (低带宽);而Fanout缓冲器模式附加相抖动器: PCIe Gen5 CC < 15fs RMS,DB2000Q 附加抖动 < 25fs RMS,QPI/UPI 11.4GB/s < 40fs RMS,IF-UPI 附加抖动 < 70fs RMS,周期到周期的抖动<50ps,输出到输出偏差<50ps. LP-HCSL输出,每个输出对可省略多达4个电阻,9个可选择SMBus地址.工作温度-40℃ 到 +85℃ .主要用在服务器,nVME存储,网络,加速度计和工业应用.本文介绍了9ZXL1951D主要指标和优势,框图, 负载相位抖动测量图,以及PCIe时钟发生器评估板EVK9ZXL1951D主要特性和电路图.

The 9ZXL15x0D/9ZXL19x0D/9ZXL1951D devices comprise a family of 2nd-generation enhanced performance buffers for PCIe and CPU applications. The family meets all published QPI/UPI, DB2000Q and PCIe Gen1–5 jitter specifications. Devices are either 15 or 19 outputs. The devices function as both fanout (FOB) and zero-delay (ZDB) buffers. All devices meet DB2000Q and DB1900Z jitter and skew requirements.

9ZXL1951D主要指标:

▪ ZDB Mode phase jitter:
• PCIe Gen5 CC < 24fs RMS (Low Bandwidth)
• QPI/UPI 11.4GB/s < 110fs RMS (Low Bandwidth)
• IF-UPI additive jitter < 130fs RMS (Low Bandwidth)..

查看全文