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023AI

更新时间： 2024-10-01 07:09:47

品牌	Logo	应用领域
矽成 - ICSI		时钟发生器
页数	文件大小	规格书
13页	194K
描述
FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR

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中文翻译

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数据手册

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023AI 数据手册

ICS843023I

FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V

LVPECL CLOCK GENERATOR

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

The ICS843023I is a Gigabit Ethernet Clock • 1 differential 3.3V LVPECL output

ICS

Generator and a member of the HiPerClocks^TM

family of high performance devices from ICS.

The ICS843023I uses a 25MHz crystal to

synthesize 250MHz. The ICS843023I has

• Crystal oscillator interface designed for 25MHz,

18pF parallel resonant crystal

HiPerClockS™

• Output frequency range: 245MHz - 320MHz

• VCO range: 490MHz - 640MHz

excellent phase jitter performance, over the 1.875MHz – 20MHz

integration range. The ICS843023I is packaged in a small

8-pin TSSOP, making it ideal for use in systems with

limited board space.

• RMS phase jitter @ 250MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.39ps (typical)

Phase noise:

Offset

Noise Power

100Hz ............... -86.3 dBc/Hz

1kHz ..............-114.6 dBc/Hz

10kHz ..............-125.6 dBc/Hz

100kHz ................ -126 dBc/Hz

• 3.3V or 2.5V operating supply

• -40°C to 85°C ambient operating temperature

• Lead-Free package fully RoHS compliant

BLOCK DIAGRAM

PIN ASSIGNMENT

VCC

XTAL_OUT

XTAL_IN

V^EE

25MHz

VCC

XTAL_IN

÷2

(fixed)

Phase

Detector

OSC

VCO

XTAL_OUT

ICS843023I

÷20

(fixed)

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm package body

G Package

TopView

843023AGI

www.icst.com/products/hiperclocks.html

REV. A JUNE 29, 2005

12 3 4 5 6 7...13

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