Datasheet > IDT5T9891

IDT5T9891

更新时间： 2024-11-21 01:11:07

品牌	Logo	应用领域
艾迪悌 - IDT		可编程只读存储器电动程控只读存储器电可擦编程只读存储器驱动
页数	文件大小	规格书
37页	286K
描述
EEPROM PROGRAMMABLE 2.5V PROGRAMMABLE SKEW PLL DIFFERENTIAL CLOCK DRIVER

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IDT5T9891 数据手册

IDT5T9891

INDUSTRIALTEMPERATURERANGE

EEPROMPROGRAMMABLE2.5VPROGRAMMABLESKEWPLLDIFFERENTIAL

EEPROM PROGRAMMABLE 2.5V

IDT5T9891

PROGRAMMABLE SKEW PLL

DIFFERENTIAL CLOCK DRIVER

FEATURES:

DESCRIPTION:

• 2.5VDD

The IDT5T9891is a 2.5VPLLdifferentialclockdriverintendedforhigh

performance computing and data-communications applications. A key

featureoftheprogrammableskewis theabilityofoutputs toleadorlagthe

REFinputsignal.TheIDT5T9891has sixdifferentialprogrammableskew

outputsinsixbanks,includingadedicateddifferentialfeedbackthroughthe

• 6 pairs of programmable skew outputs

• Low skew: 100ps all outputs at same interface level, 250ps all

outputs at different interface levels

• Selectable positive or negative edge synchronization

• Tolerant of spread spectrum input clock

• Synchronous output enable

use ofJTAGorI Cprogramming. The redundantinputcapabilityallows

fora smoothchange overtoa secondaryclocksource whenthe primary

clocksource is absent.

• Selectable inputs

• Input frequency: 4.17MHz to 250MHz

• Output frequency: 12.5MHz to 250MHz

• Internal non-volatile EEPROM

TheclockdrivercanbeconfiguredthroughtheuseofJTAG/I²Cprogram-

ming. An internal EEPROM will allow the user to save and restore the

configurationofthedevice.

• JTAG or I C bus serial interface for programming

The feedbackbankallows divide-by-functionalityfrom1to12through

• Hot insertable and over-voltage tolerant inputs

• Feedback divide selection with multiply ratios of (1-6, 8, 10, 12)

• Selectable HSTL, eHSTL, 1.8V/2.5V LVTTL, or LVEPECL input

interface

• Selectable HSTL, eHSTL, or 1.8V/2.5V LVTTL output interface for

each output bank

• Selectable differential or single-ended inputs and six differen-

tial outputs

• PLL bypass for DC testing

• External differential feedback, internal loop filter

• Low Jitter: <75ps cycle-to-cycle, all outputs at same interface

level: <100ps cycle-to-cycle all outputs at different interface

levels

theuseofJTAGorI Cprogramming. Thisprovidestheuserwithfrequency

multiplication1to12withoutusingdividedoutputsforfeedback. Eachoutput

bank also allows for a divide-by functionality of 2 or 4.

The IDT5T9891 features a user-selectable, single-ended or differential

input to six differential outputs. The differential clock driver also acts as a

translatorfromadifferentialHSTL,eHSTL,1.8V/2.5VLVTTL,LVEPECL,or

single-ended1.8V/2.5VLVTTLinputtoHSTL,eHSTL,or1.8V/2.5VLVTTL

outputs. EachoutputbankcanbeindividuallyconfiguredtobeeitherHSTL,

eHSTL,2.5VLVTTL,or1.8VLVTTL,includingthefeedbackbank. Also,each

clockinputcanbeindividuallyconfiguredtoaccept2.5VLVTTL,1.8VLVTTL,

ordifferentialsignals. Theoutputscanbesynchronouslyenabled/disabled.The

differentialoutputscanbesynchronouslyenabled/disabled.

Furthermore,alltheoutputscanbesynchronizedwiththepositiveedge

of the REF clock input or the negative edge of REF.

• Power-down mode

• Lock indicator

• Available in VFQFPN package

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

NOVEMBER 2004

2004 Integrated Device Technology, Inc.

DSC - 6505/19

12 3 4 5 6 7...37

中文翻译

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与IDT5T9891相关器件

型号	品牌	获取价格	描述	数据表
IDT5T9891NL	IDT	获取价格	EEPROM PROGRAMMABLE 2.5V PROGRAMMABLE SKEW PLL DIFFERENTIAL CLOCK DRIVER
IDT5T9891NLG	IDT	获取价格	EEPROM PROGRAMMABLE 2.5V PROGRAMMABLE SKEW PLL DIFFERENTIAL CLOCK DRIVER
IDT5T9891NLGI8	IDT	获取价格	PLL Based Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, GREEN,
IDT5T9891NLI	IDT	获取价格	PLL Based Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC
IDT5T9891NLI8	IDT	获取价格	PLL Based Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC
IDT5T9950APFGI	IDT	获取价格	PLL Based Clock Driver, 5T Series, 8 True Output(s), 0 Inverted Output(s), PQFP32, LEAD FR
IDT5T9950APFGI8	IDT	获取价格	PLL Based Clock Driver, 5T Series, 8 True Output(s), 0 Inverted Output(s), PQFP32, LEAD FR
IDT5T9955BFGI	IDT	获取价格	PLL Based Clock Driver, 5T Series, 8 True Output(s), 0 Inverted Output(s), PBGA96, GREEN,
IDT5T9955BFI	IDT	获取价格	PLL Based Clock Driver, 5T Series, 8 True Output(s), 0 Inverted Output(s), PBGA96, FBGA-96
IDT5T995APFI8	IDT	获取价格	Clock Driver, PQFP44

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