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PI6C557-03A

更新时间： 2024-11-21 12:56:39

品牌	Logo	应用领域
百利通 - PERICOM		时钟发生器 PC
页数	文件大小	规格书
9页	815K
描述
PCIe 2.0 Clock Generator with 2 HCSL Outputs

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数据手册

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PI6C557-03A 数据手册

PI6C557-03A

PCIe 2.0 Clock Generator with 2 HCSL Outputs

Features

Description

Î PCIe® 2.0 compliant

e PI6C557-03A is a spread spectrum clock generator compli-

ant to PCI Express® 2.0 and Ethernet requirements. e device is

used for PC or embedded systems to substantially reduce Electro-

magnetic Interference (EMI).

Phase jitter - 2.1ps RMS (typ)

Î LVDS compatible outputs

Î Supply voltage of 3.3V 10%

Î 25MHz crystal or clock input frequency

Î HCSL outputs, 0.8V Current mode diﬀerential pair

Î Jitter 35ps cycle-to-cycle (typ)

e PI6C557-03A provides two diﬀerential (HCSL) or LVDS

spread spectrum outputs. e PI6C557-03A is conﬁgured to se-

lect spread and clock selection. Using Pericom's 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.

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

Î Industrial temperature range

Î Spread Bypass option available

Î Spread and frequency selection via external pins

Î Packaging: (Pb-free and Green)

16-pin TSSOP (L16)

16-pin QSOP (Q16)

Block Diagram

Pin Configuration (16-Pin TSSOP)

VDD

SS1:SS0

CLK0

VDDX

CLK0

GNDA

VDDA

CLK1

IREF

Control

Logic

S1:S0

Phase

Lock

Loop

SS0

X1/CLK

CLK1

X1/CLK

25 MHz

Crystal

Driver

crystal or clock

GNDX

SS1

Pulling

Capacitors

R_R

GND

All trademarks are property of their respective owners.

www.pericom.com

P-0.1

04/29/11

11-0061

12 3 4 5 6 7...9

中文翻译

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