Datasheet > 844008AYI-15T

844008AYI-15T

更新时间： 2024-11-04 20:59:39

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
13页	832K
描述
PLL/Frequency Synthesis Circuit

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中文翻译

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技术参数
数据手册

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844008AYI-15T 技术参数

是否Rohs认证：	不符合	生命周期：	Active
Reach Compliance Code：	not_compliant	风险等级：	5.8
JESD-609代码：	e0	湿度敏感等级：	3
端子面层：	Tin/Lead (Sn85Pb15)	Base Number Matches：	1

844008AYI-15T 数据手册

PRELIMINARY

ICS844008I-15

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ C RYSTAL-TO-

LVDS FREQUENCY SYNTHESIZER

GENERAL DESCRIPTION

FEATURES

The ICS844008I-15 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

ICS844008I-15 uses ICS’ 3^rdgeneration low phase noise

VCO technology and can achieve <1ps typical rms phase

jitter, easily meeting PCI Express jitter requirements. The

ICS844008I-15 is packaged in a 32-pin LQFP package.

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

(1.875MHz - 20MHz): 0.42ps (typical)

• Full 3.3V supply modes

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

• Available in both standard and lead-free RoHS compliant

packages

FREQUENCY SELECT FUNCTIONTABLE

Input

Output

Frequency

(MHz)

M Divider N Divider M/N Divider Frequency

F_SEL

Value

(MHz)

25MHz

125

25MHz

100

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

OE1

Pulldown

nPLL_SEL

nQ0

32 31 30 29 28 27 26 25

nQ0

V^DD

nQ1

nQ7

V^DD

25MHz

ICS844008I-15

32-Lead LQFP

7mm x 7mm x 1.4mm

package body

Y Package

VCO

500MHz

(w/25MHz

Reference)

XTAL_IN

Phase

Detector

÷4

÷5

OSC

nQ2

nQ1

GND

nQ6

GND

XTAL_OUT

nQ3

Top View

M = ÷20 (fixed)

nQ2

nQ5

10 11 12 13 14 15 16

nQ4

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.

844008AYI-15

www.icst.com/products/hiperclocks.html

REV.B APRIL 28, 2006

12 3 4 5 6 7...13

中文翻译

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