Datasheet > ICS844252AG-04

ICS844252AG-04

更新时间： 2024-09-16 11:14:43

品牌	Logo	应用领域
矽成 - ICSI		晶体时钟发生器外围集成电路光电二极管
页数	文件大小	规格书
12页	164K
描述
FEMTOCLOCKS? CRYSTAL-TO-LVDS CLOCK GENERATOR

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数据手册

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ICS844252AG-04 数据手册

PRELIMINARY

ICS844252-04

FEMTOCLOCKS™ C RYSTAL-TO-

LVDS CLOCK GENERATOR

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

• Two differential LVDS outputs

The ICS844252-04 is a 10Gb/12Gb Ethernet

ICS

HiPerClockS™

Clock Generator and a member of the

HiPerClocks^TMfamily of high performance

devices from ICS. The ICS844252-04 can

synthesize 10 Gigabit Ethernet and 12 Gigabit

• Crystal oscillator interface designed for

18pF parallel resonant crystals

• Crystal input frequency range: 19.33MHz - 30MHz

• Output frequency range: 145MHz - 187.5MHz

• VCO frequency range: 580MHz - 750MHz

Ethernet with a 25MHz crystal. It can also generate SATA

and 10Gb Fibre Channel reference clock frequencies with

the appropriate choice of crystals. The ICS844252-04 has

excellent phase jitter performance and is packaged in a

small 16-pin TSSOP, making it ideal for use in systems with

limited board space.

• RMS phase jitter at 156.25MHz (1.875MHz - 20MHz):

0.36ps (typical)

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request

• Available in both standard and lead-free compliant

packages

CONFIGURATION TABLE WITH 25MHZ CRYSTAL

Inputs

Output Frequency

Application

Crystal Frequency Feedback VCO Frequency

(MHz)

N Output Divide

(MHz)

Divide

(MHz)

750

187.5

12 Gigabit Ethernet

10 Gigabit Ethernet

625

156.25

CONFIGURATION TABLE WITH SELECTABLE CRYSTALS

Inputs

Output Frequency

(MHz)

Application

Crystal Frequency Feedback VCO Frequency

N Output Divide

(MHz)

Divide

(MHz)

600

150

159.375

150

SATA

21.25

637.5

600

10 Gigabit Fibre Channel

SATA

25.5

637.5

750

159.375

187.5

10 Gigabit Fibre Channel

12 Gigabit Ethernet

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

nQ1

XTAL_IN

XTAL_OUT

GND

Pulldown

nPLL_SEL

V^DDO

nPLL_SEL

V^DDO

REF_CLK

CLK_SEL

V^DD

VDDA

FREQ_SEL

Pulldown

REF_CLK

DIV. N

÷4

XTAL_IN

nQ0

VCO

nQ0

Phase

Detector

580MHz-750MHz

OSC

nQ1

ICS844252-04

16-Lead TSSOP

4.4mm x 5.0mm x 0.92mm

package body

XTAL_OUT

CLK_SEL

Pulldown

0 = ÷25 (default)

G Package

Top View

1 = ÷30

Pulldown

FREQ_SEL

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.

844252AG-04

www.icst.com/products/hiperclocks.html

REV.A JANUARY 26, 2006

12 3 4 5 6 7...12

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与ICS844252AG-04相关器件

型号	品牌	获取价格	描述	数据表
ICS844252AG-04LF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844252AG-04LF	IDT	获取价格	Clock Generator, 187.5MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TS
ICS844252AG-04LFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844252AG-04LFT	IDT	获取价格	Clock Generator
ICS844252AG-04T	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844256	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844256	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844256AG	IDT	获取价格	Clock Generator, 622.08MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
ICS844256AG	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844256AGLF	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE

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