Datasheet > ICS8431AM-01T

ICS8431AM-01T

更新时间： 2024-11-04 06:59:47

品牌	Logo	应用领域
艾迪悌 - IDT		光电二极管
页数	文件大小	规格书
7页	96K
描述
Clock Generator, 200MHz, PDSO28, SOIC-28

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中文翻译

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数据手册

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ICS8431AM-01T 数据手册

PRELIMINARY

Integrated

Circuit

Systems, Inc.

ICS8431-01

CLOCK SYNTHESIZER

GENERAL DESCRIPTION

FEATURES

The ICS8431-01 is a general purpose clock • Fully integrated PLL

,&6

frequency synthesizer and a member of the

• Differential 3.3V LVPECLoutput

• 200MHz output frequency

HiPerClockS™ HiPerClockS™ family of High Performance

Clock Solutions from ICS. The ICS8431-01

consists of one independent low bandwidth PLL

• Crystal oscillator interface

timing channel. A 16.666MHz crystal is used as the input to

the on-chip oscillator. The M and N dividers are configured to

produce a fixed output frequency of 200MHz.

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

for environments requiring ultra low EMI

Programmable features of the ICS8431-01 support four op-

erational modes. The four modes are spread spectrum clock-

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

and are controlled by the Power Up Latch. After power up

the latch is disabled and the initial programmed values can

only be overwritten by removing all power to the device.

• LVTTL/ LVCMOS control inputs

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

functional block characterization

• 28 lead SOIC

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 connnected to the

TEST_I/O pin. This is useful for in-circuit testing and allows

the differential output to be driven at a lower frequency

throughout the system clock tree. In the other PLL bypass

mode the oscillator divider is used as the source to both the

M and N dividers. In this configuration the frequency at FOUT,

nFOUT equals the crystal frequency divide by 16 divided by

N. The frequency at TEST I/O equals the crystal frequency

divide by 16 divided by M. This is useful for characterizing

the oscillator and internal dividers.

BLOCK DIAGRAM

PIN ASSIGNMENT

XTAL1

OSC

XTAL2

VDDI

XTAL2

XTAL1

VDDA

VDDO

FOUT

nFOUT

GND

÷ 16

PLL

PHASE

DETECTOR

VCO

SSC_CTL0

SSC_CTL1

GNDT

TEST_I/O

VDDT

÷ N

FOUT

nFOUT

÷ M

TEST_I/O

ICS8431-01

SSC_CTL0

SSC_CTL1

Power

Latch

28-Lead SOIC

M Package

Top View

Configuration Logic

8431-01

www.icst.com

SEPTEMBER 13, 2000

12 3 4 5 6 7

中文翻译

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与ICS8431AM-01T相关器件

型号	品牌	获取价格	描述	数据表
ICS8431AM-11T	IDT	获取价格	Clock Generator, 400MHz, PDSO28, SOIC-28
ICS8431AM-21	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AM-21LF	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AM-21LFT	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AM-21T	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AMI-21	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS8431AMI-21LF	ICSI	获取价格	350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
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

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