Datasheet > ICS844246AM

ICS844246AM

更新时间： 2024-11-04 11:14:43

品牌	Logo	应用领域
矽成 - ICSI		晶体外围集成电路光电二极管时钟
页数	文件大小	规格书
13页	186K
描述
FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER

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ICS844246AM 数据手册

PRELIMINARY

ICS844246

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ C RYSTAL-TO-LVDS

FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER

GENERAL DESCRIPTION

FEATURES

The ICS844246 is a Crystal-to-LVDS Clock • Six LVDS outputs

ICS

HiPerClockS™

Synthesizer/Fanout Buffer designed for Fibre

• Crystal oscillator interface

Channel and Gigabit Ethernet applications and

is a member of the HiperClockS™ family of

High Performance Clock Solutions from ICS.

• Output frequency range: 53.125MHz to 333.3333MHz

• Crystal input frequency range: 25MHz to 33.333MHz

The output frequency can be set using the frequency

select pins and a 25MHz crystal for Ethernet fre-

quencies, or a 26.5625MHz crystal for a Fibre Channel.

The low phase noise characteristics of the ICS844246

make it an ideal clock for these demanding applications.

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

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

• Full 3.3V or 3.3V core, 2.5V output supply mode

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request

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

packages

SELECT FUNCTION TABLE

Inputs

Function

FB_SEL N_SEL1 N_SEL0 M Divide N Divide

M/N

2.5

BLOCK DIAGRAM

PIN ASSIGNMENT

VDDO

nQ3

nQ2

nQ0

nQ4

Pullup

PLL_BYPASS

nQ1

nQ5

nQ0

PLL_BYPASS

V^DDA

N_SEL1

GND

N_SEL0

XTAL_OUT

XTAL_IN

nQ1

Output

Divider

XTAL_IN

OSC

PLL

VDD

FB_SEL

XTAL_OUT

nQ2

ICS843246

24-Lead, 300-MIL SOIC

7.5mm x 15.33mm x 2.3mm

body package

Feedback

Divider

nQ3

M Package

TopView

Pulldown

FB_SEL

Pullup

nQ4

N_SEL1

24-LeadTSSOP

4.40mm x 7.8mm x 0.92mm

body package

Pullup

N_SEL0

G Package

TopView

nQ5

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.

844246AM

www.icst.com/products/hiperclocks.html

REV.A SEPTEMBER 29, 2005

12 3 4 5 6 7...13

中文翻译

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与ICS844246AM相关器件

型号	品牌	获取价格	描述	数据表
ICS844246AMLF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS844246AMLFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS844246AMT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS844246BG	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGI	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGIL	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGILF	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGILFT	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGIT	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844246BGLF	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE

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