Datasheet > 844001AG

844001AG

更新时间： 2024-02-29 12:52:13

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
14页	242K
描述
暂无描述

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

844001AG 数据手册

FEMTOCLOCKS™ CRYSTAL-TO-LVDS

CLOCK GENERATOR

ICS844001

GENERAL DESCRIPTION

FEATURES

The ICS844001 is a Fibre Channel Clock Generator. The

ICS844001 uses an 18pF parallel resonant crystal over the

range of 20.4MHz - 28.3MHz. For Fibre Channel applications, a

26.5625MHz crystal is used. The frequency select pin allows

the device to generate either 106.25MHz or 212.5MHz from a

26.5625MHz crystal. To generate 187.5MHz for 12Gb Ethernet,

a 23.4375MHz crystal is used. The ICS844001 uses IDT’s

3^rdgeneration low phase noise VCO technology and can achieve

<1ps typical rms phase jitter, easily meeting Fibre Channel and

Ethernet jitter requirements. The ICS844001 is packaged in a

small 8-pin TSSOP, making it ideal for use in systems with limited

board space.

• One Differential LVDS output

• Crystal oscillator interface, 18pF parallel resonant crystal

(20.4MHz - 28.3MHz)

• Output frequency range: 81.66MHz - 226.66MHz

• VCO range: 490MHz - 680MHz

• RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal

(637kHz - 10MHz): 0.74ps (typical)

• 3.3V or 2.5V operating supply

• 0°C to 70°C ambient operating temperature

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

NOTE: It is not recommended to overdrive the crystal input with

an external clock.

COMMON CONFIGURATION TABLE - FIBRE CHANNEL, 12Gb ETHERNET

Inputs

Output Frequency

Multiplication

(MHz)

Crystal Frequency (MHz) FREQ_SEL

Value M/N

26.5625

23.4375

106.25

212.5

187.5

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

FREQ_SEL

VDDA

GND

VDD

XTAL_OUT

XTAL_IN

÷3

÷6

XTAL_IN

VCO

FREQ_SEL

Phase

Detector

OSC

490MHz - 680MHz

XTAL_OUT

ICS844001

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm

package body

M = ÷24 (fixed)

G Package

Top View

IDT^™/ ICS^™FEMTOCLOCKS™ CLOCK GENERATOR

ICS844001 REV A NOVEMBER 2, 2012

12 3 4 5 6 7...14

下载PDF

与844001AG相关器件

型号	品牌	描述	获取价格	数据表
844001AG-21	IDT	Clock Generator, 700MHz, PDSO24, 4.40 X 7.80 MM, 0.925 MM HEIGHT, MO-153, TSSOP-24	获取价格
844001AG-21LF	IDT	Clock Generator, 700MHz, CMOS, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-	获取价格
844001AG-21T	IDT	Clock Generator, 700MHz, PDSO24, 4.40 X 7.80 MM, 0.925 MM HEIGHT, MO-153, TSSOP-24	获取价格
844001AGT	IDT	Clock Generator, 226.66MHz, CMOS, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8	获取价格
844002AG-01	IDT	FEMTOCLOCKS⑩ CRYSTAL-TOLVDS FREQUENCY SYNTHES	获取价格
844002AG-01LF	IDT	FEMTOCLOCKS⑩ CRYSTAL-TOLVDS FREQUENCY SYNTHES	获取价格