Datasheet > ICS8440258-46

ICS8440258-46

更新时间： 2024-11-04 05:39:03

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
16页	347K
描述
FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQUENCY SYNTHESIZER

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中文翻译

获取价格

数据手册

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ICS8440258-46 数据手册

PRELIMINARY

FEMTOCLOCK™ CRYSTAL/LVCMOS-TO-

LVDS/LVCMOS FREQUENCY SYNTHESIZER

ICS8440258-46

GENERAL DESCRIPTION

FEATURES

The ICS8440258-46 is an 8 output synthesizer

• Four differential LVDS outputs at 125MHz

ICS

HiPerClockS™

optimized to generate Ethernet clocks and a

member of the HiPerClockS™family of high

performance clock solutions from IDT. Using a

25MHz, 18pF parallel resonant crystal, the device

Two LVCMOS/LVTTL single-ended outputs at 125MHz

Two LVCMOS/LVTTL single-ended outputs at 25MHz

• Selectable crystal oscillator interface or LVCMOS/LVTTL

single-ended input

will generate both 125MHz and 25MHz clocks with mixed

LVDS and LVCMOS/LVTTL output logic. The ICS8440258-46

uses IDT’s 3^rdgenerations low phase noise VCO technology

and can achieve <1ps typical rms phase jitter, easily meeting

Ethernet jitter requirements. The ICS8440258-46 is packaged

in a small, 5mm x 5mm VFQFN package.

• VCO range: 490MHz - 680MHz

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.34ps (typical)

• Full 2.5V operating supply

• 0°C to 70°C ambient operating temperature

• Available in both standard (RoHS 5) and lead-free (RoHS6)

packages

PIN ASSIGNMENT

32 31 30 29 28 27 26 25

nQ0

GND

ICS8440258-46

32-Lead VFQFN

5mm x 5mm x 0.925mm

package body

GND

nQ1

V^DD

V^DDO2

K Package

Top View

BLOCK DIAGRAM

nQ2

GND

Pulldown

9 10 11 12 13 14 15 16

Pulldown

nPLL_SEL

nQ0

nQ1

25MHz

XTAL_IN

nQ2

OSC

÷5

XTAL_OUT

Phase

Detector

VCO

490-680MHz

nQ3

Pulldown

REF_CLK

Pulldown

nXTAL_SEL

÷25

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

and/or qualification.Integrated DeviceTechnology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.

IDT^™/ ICS^™LVDS/LVCMOS FREQUENCY SYNTHESIZER

ICS8440258AK-46 REV B JANUARY 15, 2008

12 3 4 5 6 7...16

中文翻译

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与ICS8440258-46相关器件

型号	品牌	获取价格	描述	数据表
ICS8440258AK-46	IDT	获取价格	FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQ
ICS8440258AK-46LF	IDT	获取价格	FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQ
ICS8440258AK-46LFT	IDT	获取价格	FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQ
ICS8440258AK-46T	IDT	获取价格	FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQ
ICS8440258AKI-46LF	IDT	获取价格	Clock Generator, 125MHz, 5 X 5 MM, 0.75 MM HEIGHT, ROHS COMPLIANT, MO-220VHHD-2, VFQFN-32
ICS8440258AKI-46LTF	IDT	获取价格	Clock Generator, 125MHz, 5 X 5 MM, 0.75 MM HEIGHT, MO-220VHHD-2, VFQFN-32
ICS8440258AKI-46T	IDT	获取价格	Clock Generator, 125MHz, 5 X 5 MM, 0.75 MM HEIGHT, MO-220VHHD-2, VFQFN-32
ICS844031AG-01LF	IDT	获取价格	Clock Generator, 340MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSO
ICS844031AG-01LFT	IDT	获取价格	Clock Generator, 340MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSO
ICS844031AG-01T	IDT	获取价格	Clock Generator, 340MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8

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