Datasheet > ICS844008-16

ICS844008-16

更新时间： 2024-11-04 04:58:15

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
12页	143K
描述
FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

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中文翻译

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数据手册

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ICS844008-16 数据手册

PRELIMINARY

ICS844008-16

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ C RYSTAL-TO-

LVDS FREQUENCY SYNTHESIZER

GENERAL DESCRIPTION

FEATURES

The ICS844008-16 is an 8 output LVDS • Eight LVDS outputs

ICS

HiPerClockS™

Synthesizer optimized to generate PCI Express

• Crystal oscillator interface

reference clock frequencies and is a member

• Supports the following output frequencies:

100MHz or 125MHz

of the HiPerClocks^TMfamily of high performance

clock solutions from ICS. Using a 25MHz

• VCO: 500MHz

parallel resonant crystal, the following frequencies can be

generated based on F_SEL pin: 100MHz or 125MHz. The

ICS844008-16 uses ICS’ 3^rdgeneration low phase noise

VCO technology and can achieve <1ps typical rms phase

jitter, easily meeting PCI Express jitter requirements. The

ICS844008-16 is packaged in a 32-pin LQFP package.

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

(1.875MHz - 20MHz): 0.44ps (typical)

• Full 3.3V supply modes

• 0°C to 70°C ambient operating temperature

• Available in both standard and lead-free RoHS compliant

packages

PIN ASSIGNMENT

FREQUENCY SELECT FUNCTIONTABLE

Input

Output

Frequency

(MHz)

M Divider N Divider M/N Divider Frequency

32 31 30 29 28 27 26 25

F_SEL

Value

(MHz)

nQ0

V^DD

25MHz

125

nQ7

V^DD

25MHz

100

ICS844008-16

32-Lead LQFP

7mm x 7mm x 1.4mm

package body

Y Package

nQ1

GND

nQ6

GND

BLOCK DIAGRAM

Pulldown

Top View

nPLL_SEL

nQ0

nQ2

nQ5

10 11 12 13 14 15 16

nQ1

25MHz

VCO

500MHz

(w/25MHz

Reference)

XTAL_IN

Phase

Detector

÷4

÷5

nQ2

OSC

XTAL_OUT

nQ3

M =

20 (fixed)

nQ4

Pullup

OE1

nQ5

nQ6

nQ7

Pulldown

Pullup

F_SEL

Pullup

OE2

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.

844008AY-16

www.icst.com/products/hiperclocks.html

REV.A FEBRUARY 1, 2006

12 3 4 5 6 7...12

中文翻译

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与ICS844008-16相关器件

型号	品牌	获取价格	描述	数据表
ICS844008AKI-46LF	IDT	获取价格	Clock Generator, PQCC32
ICS844008AY-16	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844008AY-16LF	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844008AY-16LFT	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844008AY-16T	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844008AYI-15	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844008AYI-15LF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844008AYI-15LFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844008AYI-15T	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844008BYI-15LF	IDT	获取价格	Clock Generator, 125MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP

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