Datasheet > ICS843251I-12

ICS843251I-12

更新时间： 2024-11-03 11:14:39

品牌	Logo	应用领域
矽成 - ICSI		时钟发生器
页数	文件大小	规格书
12页	171K
描述
FEMTOCLOCKS? 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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ICS843251I-12 数据手册

PRELIMINARY

ICS843251I-12

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V

LVPECL CLOCK GENERATOR

GENERAL DESCRIPTION

FEATURES

The ICS843251I-12 is a 10Gb Ethernet Clock • One Differential LVPECL output

ICS

HiPerClockS™

Generator and a member of the HiPerClocks^TM

family of high performance devices from ICS.The

ICS843251I-12 uses an 18pF parallel resonant

crystal over the range of 23.2MHz - 30MHz. For

• Crystal oscillator interface, 18pF parallel resonant crystal

(23.2MHz - 30MHz)

• Output frequency range: 290MHz - 750MHz

• VCO range: 580MHz - 750MHz

Ethernet applications, a 25MHz crystal is used. The device

has excellent <1ps phase jitter performance, over the

1.875MHz - 20MHz integration range. The ICS843251I-12

is packaged in a small 8-pin TSSOP, making it ideal for

use in systems with limited board space.

• RMS phase jitter @ 312.5MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.36ps (typical)

• 3.3V or 2.5V operating supply

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

• Available in both standard and lead-free RoHS-compliant

packages

COMMON CONFIGURATION TABLE

Inputs

Output Frequency

Crystal Frequency

(MHz)

Multiplication Value

M/N

(MHz)

FREQ_SEL

625

12.5

312.5

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

FREQ_SEL

VCCA

VEE

VCC

XTAL_OUT

XTAL_IN

FREQ_SEL

÷1

÷2

XTAL_IN

OSC

XTAL_OUT

VCO

Phase

Detector

FREQ_SEL

580MHz - 750MHz

ICS843251I-12

8-LeadTSSOP

4.4mm x 3.0mm x 0.925mm

package body

M = ÷25 (fixed)

G Package

Top View

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on

initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications

without notice.

843251BGI-12

www.icst.com/products/hiperclocks.html

REV.A JANUARY 10, 2006

12 3 4 5 6 7...12

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