Datasheet > ICS840051AGLF

ICS840051AGLF

更新时间： 2024-11-13 22:55:23

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
10页	218K
描述
FEMTOCLOCK CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR

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中文翻译

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数据手册

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ICS840051AGLF 数据手册

ICS840051

Integrated

Circuit

Systems, Inc.

EMTO

LOCKS™ CRYSTAL

-TO-

LVCMOS/LVTTL CLOCK

GENERATOR

GENERAL DESCRIPTION

FEATURES

The ICS840051 is a Gigabit Ethernet Clock • 1 LVCMOS/LVTTL output, 15Ω output impedance

ICS

Generator and a member of the HiPerClocks^TM

• Crystal oscillator interface designed for

family of high performance devices from ICS.

18pF parallel resonant crystals

HiPerClockS™

The ICS840051 can synthesize 10 Gigabit

Ethernet, SONET, or Serial ATA reference clock

• Output frequency range: 70MHz - 170MHz

• VCO range: 560MHz - 680MHz

frequencies with the appropriate choice of crystal and

output divider. The ICS840051 has excellent phase jitter

performance and is packaged in a small 8-pin TSSOP,

making it ideal for use in systems with limited board space.

• RMS phase jitter at 155.52MHz (1.875MHz - 20MHz):

0.48ps (typical)

• RMS phase noise at 155.52MHz

Offset Noise Power

100Hz ............... -99.7 dBc/Hz

1KHz ................ -120 dBc/Hz

10KHz ................ -128 dBc/Hz

100KHz ................ -127 dBc/Hz

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

• Lead-Free fully RoHS compliant

• Industrial temperature information available upon request

FREQUENCY TABLE

Inputs

Output Frequency

(MHz)

Crystal Frequency (MHz)

20.141601

19.53125

19.44

FREQ_SEL

161.132812

80.566406

156.25

78.125

155.52

77.76

19.44

18.75

150

18.75

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

VDDA

VDD

Pulldown

FREQ_SEL

XTAL_OUT

XTAL_IN

GND

FREQ_SEL

XTAL_IN

OSC

÷4 (default)

÷8

Phase

Detector

VCO

560MHz-680MHz

XTAL_OUT

ICS840051

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm

package body

÷32

(fixed)

G Package

TopView

840051AG

www.icst.com/products/hiperclocks.html

REV. A JANUARY 14, 2005

12 3 4 5 6 7...10

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