Datasheet > 9FGV0831CKLF

9FGV0831CKLF

更新时间： 2024-11-20 01:02:47

品牌	Logo	应用领域
艾迪悌 - IDT		PC
页数	文件大小	规格书
17页	339K
描述
8-O/P 1.8V PCIe Gen 1/2/3 Clock Generator

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9FGV0831CKLF 数据手册

8-O/P 1.8V PCIe Gen 1/2/3 Clock Generator

9FGV0831

DATASHEET

Description

Features/Benefits

The 9FGV0831 is a member of IDT's SOC-Friendly 1.8V

Very-Low-Power PCIe clock family. The device has 8 output

enables for clock management, 2 different spread spectrum

levels in addition to spread off and 2 selectable SMBus

addresses.

• LP-HCSL outputs; save 16 resistors compared to standard

PCIe devices

• 62mW typical power consumption; reduced thermal

concerns

• Outputs can optionally be supplied from any voltage

between 1.05 and 1.8V; maximum power savings

Recommended Application

1.8V PCIe Gen1/2/3 clock generator

• OE# pins; support DIF power management

• Programmable Slew rate for each output; allows tuning for

various line lengths

• Programmable output amplitude; allows tuning for various

Output Features

• 8 - 100MHz Low-Power (LP) HCSL DIF pair

• 1 - 1.8V LVCMOS REF output w/Wake-On-LAN (WOL)

support

application environments

• DIF outputs blocked until PLL is locked; clean system

start-up

• Selectable 0%, -0.25% or -0.5% spread on DIF outputs;

reduces EMI

Key Specifications

• DIF cycle-to-cycle jitter <50ps

• DIF output-to-output skew <50ps

• DIF phase jitter is PCIe Gen1-2-3 compliant

• REF phase jitter is < 1.5ps RMS

• External 25MHz crystal; supports tight ppm with 0 ppm

synthesis error

• Configuration can be accomplished with strapping pins;

SMBus interface not required for device control

• 3.3V tolerant SMBus interface works with legacy controllers

• Selectable SMBus addresses; multiple devices can easily

share an SMBus segment

• Space saving 48-pin 6x6 mm VFQFPN; minimal board

space

Block Diagram

vOE(7:0)#

REF1.8

XIN/CLKIN_25

OSC

DIF7

DIF6

DIF5

SS Capable PLL

DIF4

vSADR

DIF3

DIF2

DIF1

vSS_EN_tri

CONTROL

LOGIC

^CKPWRGD_PD#

SDATA_3.3

SCLK_3.3

DIF0

9FGV0831 OCTOBER 18, 2016

12 3 4 5 6 7...17

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