Datasheet > ICS8431AMI-21LF

ICS8431AMI-21LF

更新时间： 2024-11-03 11:14:39

品牌	Logo	应用领域
矽成 - ICSI		振荡器晶体振荡器
页数	文件大小	规格书
16页	206K
描述
350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ICS8431AMI-21LF 数据手册

ICS8431I-21

350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-

TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

• Fully integrated PLL

The ICS8431I-21 is a general purpose clock fre-

ICS

HiPerClockS™

quency synthesizer for IA64/32 application and a

member of the HiPerClockS™ family of High Per-

formance Clock Solutions from ICS.The VCO op-

erates at a frequency range of 250MHz to 700MHz

• Differential 3.3V LVPECL output

• Crystal oscillator interface

• Output frequency range: 62.5MHz to 350MHz

• Crystal input frequency range: 14MHz to 25MHz

• VCO range: 250MHz to 700MHz

providing an output frequency range of 62.5MHz to 350MHz.

The output frequency can be programmed using the parallel in-

terface, M0 through M8 to the configuration logic, and the output

divider control pin, DIV_SEL. Spread spectrum clocking is pro-

grammed via the control inputs SSC_CTL0 and SSC_CTL1.

• Programmable PLL loop divider for generating a variety

of output frequencies

Programmable features of the ICS8431I-21 support four op-

erational modes.The four modes are spread spectrum clock-

ing (SSC), non-spread spectrum clock and two test modes

which are controlled by the SSC_CTL[1:0] pins. Unlike other

synthesizers, the ICS8431I-21 can immediately change

spread-spectrum operation without having to reset the device.

• Spread Spectrum Clocking (SSC) fixed at 1/2% modulation

for environments requiring ultra low EMI

• PLL bypass modes supporting in-circuit testing and on-chip

functional block characterization

• Cycle-to-cycle jitter: 30ps (maximum)

• 3.3V supply voltage

In SSC mode, the output clock is modulated in order to achieve

a reduction in EMI. In one of the PLL bypass test modes, the

PLL is disconnected as the source to the differential output

allowing an external source to be connected to the TEST_I/O

pin. This is useful for in-circuit testing and allows the differen-

tial output to be driven at a lower frequency throughout the

system clock tree. In the other PLL bypass mode, the oscilla-

tor divider is used as the source to both the M and the Fout

divide by 2.This is useful for characterizing the oscillator and

internal dividers.

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

• Replaces ICS8431I-01

• Available in both, Standard and RoHS/Lead-Free

compliant packages

BLOCK DIAGRAM

PIN ASSIGNMENT

nP_LOAD

V^CC

XTAL_IN

XTAL_OUT

V^CCA

VEE

DIV_SEL

V^CCO

FOUT

nFOUT

V^EE

XTAL_IN

OSC

XTAL_OUT

÷ 16

PLL

PHASE

DETECTOR

SSC_CTL0

SSC_CTL1

V^EE

TEST_I/O

V^CC

÷2

VCO

÷4

FOUT

nFOUT

÷ M

ICS8431I-21

28-Lead SOIC

TEST_I/O

7.5mm x 18.05mm x 2.25mm package body

M Package

TopView

SSC

Control

Logic

Configuration

Logic

M0:M8

nP_LOAD

SSC_CTL0

SSC_CTL1

DIV_SEL

8431AMI-21

www.icst.com/products/hiperclocks.html

REV.A AUGUST 2, 2005

12 3 4 5 6 7...16

中文翻译

下载PDF

与ICS8431AMI-21LF相关器件

型号	品牌	获取价格	描述	数据表
ICS8431AMI-21LFT	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AMI-21T	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431CM-01	ICSI	获取价格	200MHZ, LOW JITTER, LVPECL FREQUENCY SYNTHESIZER
ICS8431CM-01LFT	IDT	获取价格	Clock Generator, 200MHz, PDSO28, 7.5 X 18.05 MM, 2.25 MM HEIGHT, MS-013, MO-119, SOIC-28
ICS8431CM-01T	ICSI	获取价格	200MHZ, LOW JITTER, LVPECL FREQUENCY SYNTHESIZER
ICS8431CM-11	ICSI	获取价格	255MHZ, LOW JITTER, LVPECL FREQUENCY SYNTHESIZER
ICS8431CM-11	IDT	获取价格	Clock Generator, 255MHz, PDSO28, 7.50 X 18.05, 2.25 MM HEIGHT, SOIC-28
ICS8431CM-11LFT	IDT	获取价格	Clock Generator, 255MHz, PDSO28, 7.50 X 18.05, 2.25 MM HEIGHT, SOIC-28
ICS8431CM-11T	IDT	获取价格	Clock Generator, 255MHz, PDSO28, 7.50 X 18.05, 2.25 MM HEIGHT, SOIC-28
ICS8431CM-11T	ICSI	获取价格	255MHZ, LOW JITTER, LVPECL FREQUENCY SYNTHESIZER

与ICS8431AMI-21LF相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

10
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

4
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

26
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

25

产品中心

服务支持

精选活动

关于我们

帮助中心

ICS8431AMI-21LF

ICS8431AMI-21LF 数据手册

与ICS8431AMI-21LF相关器件

与ICS8431AMI-21LF相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

ICS8431AMI-21LF

ICS8431AMI-21LF 数据手册

与ICS8431AMI-21LF相关器件

与ICS8431AMI-21LF相关文章

您还可以找

您在本页遇到什么问题？