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PI6C557-03A是扩频时钟发生器

描述

该PI6C557-03A是扩频时钟发生器并发症

蚂蚁的PCI Express 2.0和以太网的需求。该装置是

用于个人计算机或嵌入式系统,大大减少电 -

磁干扰(EMI) 。

该PI6C557-03A提供两个差分( HCSL )或LVDS

扩频输出。该PI6C557-03A被配置为SE-

择传播和时钟选择。采用Pericom的专利相位

锁相环( PLL )技术,该设备采用25MHz晶体

输入并产生两个对中的差分输出( HCSL )

为25MHz的100MHz , 125MHz的和200MHz的时钟频率。它

还提供了-0.5 % , -0.75 % ,且没有扩散蔓延的选择。

 

特点

PI6C557-03A的PCIe® 2.0兼容à

相位抖动 - 2.1ps RMS (典型值)

LVDS兼容输出

的3.3V ± 10 %电源电压

25MHz的晶振或时钟输入频率

HCSL输出, 0.8V电流模式差分对

抖动35ps的周期到周期(典型值)

-0.5 % , -0.75 % ,而没有传播蔓延

工业温度范围

可蔓延绕道选项

通过外部引脚扩展和频率的选择

包装: (无铅和绿色)

à

à

16引脚TSSOP ( L16 )

采用16引脚QSOP ( Q16 )

image.png

Product Description

The PI6C557-03A is a spread spectrum clock generator compli- ant to PCI Express® 2.0 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce Electro- magnetic Interference (EMI).

The PI6C557-03A provides two differential (HCSL) or LVDS spread spectrum outputs. The PI6C557-03A is configured to se- lect spread and clock selection. Using Diodes' patented Phase- Locked Loop (PLL) techniques, the device takes a 25MHz crystal input and produces two pairs of differential outputs (HCSL) at 25MHz, 100MHz, 125MHz and 200MHz clock frequencies. It also provides spread selection of -0.5%, -0.75%, and no spread.

Features

·         PCIe® 2.0 compliant

        - Phase jitter - 2.1ps RMS (typ)

·         LVDS compatible outputs

·         Supply voltage of 3.3V ±10%

·         25MHz crystal or clock input frequency

·         HCSL outputs, 0.8V Current mode differential pair

·         Jitter 35ps cycle-to-cycle (typ)

·         Spread of -0.5%, -0.75%, and no spread

·         Industrial temperature range

·         Spread Bypass option available

·         Spread and frequency selection via external pins

·         Packaging: (Pb-free and Green)

        - 16-pin TSSOP (L16) à 16-pin QSOP (Q16)

 

 

Product Parameters

Supply   Voltage

3.3

Jitter

35

Skew

50

Output   Frequency

100

Input   Type(s)

Crystal,   LVCMOS

Output   Type(s)

HCSL

Number   of Outputs

2

Function

Generator

Temperature

-40   to 85

Related Content

Packages

TSSOP (L16) MSL1 Sn

 

QSOP (Q16) MSL1 Sn

 




Applications PI6C557-03产品领域

刀锋服务器, 基地台, 硬盘, 桌面计算机, 工业计算机, 机架式服务器, 多功能打印机, 储存数组, 安全监控, 机顶盒




Protocols

PCI Express 2.0, PCI Express 1.0

 


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