WMSIC Electronic Components

RENESAS 9DML0451AKILF

Model9DML0451AKILF
Package24-VFQFPN(4x4)
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS 9DML0451AKILF
Type
RENESAS
Minimum package
490 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
9DML0451AKILF
Electronic Component
1
Package
24-VFQFPN(4x4)
Electronic Component
Clock Buffer / Driver / Distributor
Electronic Component
0.05g
Electronic Component
1
Features
Output /; and
Electronic Component
BM0264254435
Operating Temperature
40℃~+85℃
Operating Voltage
3.135V~3.465V
Channel Count
2
Output Channel Count
4
Output Frequency
200MHz
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

9DML0451AKILF 产品概述

一、产品简介

9DML0451AKILF 是瑞萨(RENESAS)推出的一款面向高性能串行接口的时钟多路复用器(Clock MUX)IC,专为 PCI-Express(PCIe)等高速差分接口设计。器件支持扩展频谱(Spread Spectrum)功能,具备多路时钟输出与灵活的输出使能/关断控制,集成内部终端与偏置网络,便于系统快速布局与信号完整性优化。

二、主要规格

  • 最大输出频率:200 MHz
  • 输入通道数:2
  • 输出通道数:4
  • 工作电压:3.135 V ~ 3.465 V(典型 3.3 V 兼容)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:24 引脚 VFQFPN(4 mm x 4 mm)
  • 关键特性:扩展频谱、输出使能/关断、内部终端与偏置网络

三、功能亮点

  1. 扩展频谱(Spread Spectrum):内置或可控的扩展频谱功能用于降低电磁发射(EMI),满足系统在严格 EMI 要求下的合规性。
  2. 输出使能/关断:每路输出支持使能控制,便于系统在电源管理或调试阶段关闭不必要的时钟源,降低功耗并减少干扰。
  3. 内部终端与偏置网络:集成差分终端和偏置电路,减少外部元件数量,简化板级设计并改善信号完整性和差分对匹配。
  4. 多路输出支持:四路输出为多通道收发器或板上多个子系统提供时钟源,适配复杂系统拓扑。

四、典型应用场景

  • PCI-Express 主板/外设时钟分配
  • 高速网络设备(交换机、路由器)时钟同步
  • 存储控制器(SATA/PCIe SSD)时钟管理
  • 工业控制与嵌入式系统中的多通道时钟分配

五、系统设计建议

  • 电源与退耦:在 VCC 供电引脚旁放置窄间距的高频退耦电容(如 0.1 μF)和一个大容量电容,保证瞬态响应并减少电源噪声。
  • 布线与终端:尽量使用差分走线并匹配阻抗,若使用器件内部终端,可省去外部终端件,但注意保持差分对长度匹配并避免开窗。
  • 使能控制:将输出使能信号与系统电源管理逻辑一致,避免在电源未稳定时使能输出,必要时按建议顺序上电。
  • EMI 管理:启用扩展频谱功能以降低驻波和谐波峰值;如系统对抖动有严格要求,请评估扩频对相位噪声的影响。
  • 热与封装:24-VFQFPN(4x4)封装利于热管理与高密度布局,注意过孔和散热策略以维持器件在额定温度范围内工作。

六、封装与采购信息

该器件提供 24 引脚 VFQFPN(4 mm x 4 mm)封装,适合于空间受限且需高密度布线的应用。作为瑞萨品牌产品,适配产业常见的时钟分配方案,便于与现有 PCIe 生态系集成。

七、总结

9DML0451AKILF 是一款面向高性能接口的实用型时钟多路复用器,兼顾 EMI 控制、功耗管理与板级集成度。其双输入、四输出的拓扑、内部终端与偏置网络以及输出使能与扩展频谱特性,使其在 PCIe 和其他高速串行应用中具备较高的系统适配性与工程便利性。选择该器件时应结合系统对抖动、EMI 与电源管理的具体要求进行评估和布局优化。

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