Datasheet > ICS840004AG-11T

ICS840004AG-11T

更新时间： 2024-11-14 04:58:11

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
10页	172K
描述
FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

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ICS840004AG-11T 数据手册

PRELIMINARY

ICS840004-11

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ CRYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

GENERAL DESCRIPTION

FEATURES

• Four LVCMOS/LVTTL outputs, 15Ω typical output imped-

The ICS840004-11 is a 4 output LVCMOS/

ICS

HiPerClockS™

ance

LVTTL Synthesizer optimized to generate

Ethernet reference clock frequencies and is a

member of the HiPerClocks^TMfamily of high

performance clock solutions from ICS. Using a

• Crystal oscillator interface

• Input frequency range: 22.4MHz to 28MHz

• Output frequency Range: 56MHz - 140MHz

• VCO Range: 560MHz - 700MHz

25MHz, 18pF parallel resonant crystal, 125MHz and

62.5MHz can be generated based on one frequency select

pin (F_SEL). The ICS840004-11 uses ICS’ 3^rdgeneration low

phase noise VCO technology and can achieve 1ps or lower

typical random rms phase jitter, easily meeting Ethernet jitter

requirements. The ICS840004-11 is packaged in a small

20-pin TSSOP package.

• RMS phase jitter at 125MHz (1.875MHz - 20MHz):

0.70ps (typical)

• RMS phase noise at 125MHz:

• Full 3.3V supply

• 0°C to 70°C ambient operating temperature

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

packages

FREQUENCY SELECT FUNCTION TABLE FOR ETHERNET FREQUENCIES

Inputs

M Divider N Divider

Output Frequency

(25MHz Ref.)

M/N

Ratio Value

F_SEL

Value

2.5

62.5

125

BLOCK DIAGRAM

PIN ASSIGNMENT

F_SEL

GND

V^DDO

GND

XTAL_IN

XTAL_OUT

Pullup

V^DDA

V^DD

Pullup

F_SEL

25MHz

XTAL_IN

Phase

Detector

÷10

VCO

OSC

÷5

XTAL_OUT

ICS840004-11

20-LeadTSSOP

M = ÷25 (fixed)

6.5mm x 4.4mm x 0.92mm

package body

G Package

Top View

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.

840004AG-11

www.icst.com/products/hiperclocks.html

REV.A OCTOBER 3, 2005

12 3 4 5 6 7...10

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与ICS840004AG-11T相关器件

型号	品牌	获取价格	描述	数据表
ICS840004AGI	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGI-01	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGI-01	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY
ICS840004AGI-01ILF	IDT	获取价格	Clock Generator, 175MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, T
ICS840004AGI-01LFT	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY
ICS840004AGI-01LLF	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY
ICS840004AGI-01T	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGI-01T	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY
ICS840004AGIT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGL	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENC

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