Datasheet > 5T940-30NLI8

5T940-30NLI8

更新时间： 2024-11-02 19:47:35

品牌	Logo	应用领域
艾迪悌 - IDT		驱动逻辑集成电路
页数	文件大小	规格书
11页	285K
描述
Low Skew Clock Driver, PQCC28

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技术参数
数据手册

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5T940-30NLI8 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.92	JESD-30 代码：	S-PQCC-N28
JESD-609代码：	e0	逻辑集成电路类型：	LOW SKEW CLOCK DRIVER
湿度敏感等级：	1	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC28,.24SQ,25	封装形状：	SQUARE
封装形式：	CHIP CARRIER	峰值回流温度（摄氏度）：	225
电源：	2.5/3.3 V	认证状态：	Not Qualified
子类别：	Clock Drivers	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn85Pb15)
端子形式：	NO LEAD	端子节距：	0.635 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
Base Number Matches：	1

5T940-30NLI8 数据手册

IDT5T940

INDUSTRIALTEMPERATURERANGE

PRECISIONCLOCKGENERATOROC-192APPLICATIONS

IDT5T940

PRECISION CLOCK GENERATOR

OC-192 APPLICATIONS

FEATURES:

DESCRIPTION:

• Input frequency:

The IDT5T940 generates a high precision FEC (Forward Error Cor-

rection) or non-FEC source clock for SONET/SDH systems as well as a

source clock for Gigabit Ethernet systems. This device also has clock

regeneration capability: it creates a "clean" version of the clock input by

using the internal oscillator to square the input clock's rising and falling

edges and remove jitter. In the event that the main clock input fails, the

device automatically locks to a backup reference clock using a hitless

switchover mechanism.

- ForSONETnon-FEC:19.44MHz,38.88MHz,77.76MHz,155.52MHz,

311.04MHz, or 622.08MHz

- For SONET FEC: 20.83MHz, 41.66MHz, 83.31MHz, 166.63MHz,

333.26MHz, or 666.52MHz

- For 10GE copper: 19.53MHz, 39.06MHz, 78.125MHz, 156.25MHz,

312.5MHz, or 625MHz

- For 10GE optical: 20.14MHz, 40.28MHz, 80.56MHz, 161.13MHz,

322.26MHz, or 644.53MHz

• 3-levelinputs forfeedbackdivide ratioandoutputfrequencyrange

selection

• 1x, 2x, 4x, 8x, 16x, and 32x outputs on Q^OUT

• Regenerated input clock or QOUT/4 on QREG

• Lock indicator

This device detects loss ofvalidCLKINandleaves the VCOofthe PLLat

thelastvalidfrequencywhileanalternateinputREFINis selected. IfCLKIN

andREFINaredifferentfrequencies,themultiplicationfactorwillbeadjustedto

retainthesameoutputfrequency.

TheIDT5T940canactasatranslatorfromadifferentialLVPECL,LVDS,or

single-ended LVTTL input to LVPECL or LVDS outputs. The IDT5T940-10

has LVDSoutputs andthe IDT5T940-30has LVPECLoutputs.

ThethreemodesofoutputfrequencyrangearecontrolledbytheSELmode,

whichisa3-levelpin. WhenSELmodeishighorlow,theQ^OUTisamultiplied

versionoftheinputclockwhileQREGisaregeneratedversionoftheinputclock.

WhenSELmodeismid,theQOUTisamultipliedversionoftheinputclockwhile

QREG isQOUT/4.

• Power-down mode

• LVPECL or LVDS outputs

• Three modes of output frequency range

- Mode0:QOUT range155.5-166.6MHz. QREG isaregeneratedversion

ofthe inputclock.

- Mode 1: QOUT range 622 - 666.5MHz. QREG output 155.5-166.6MHz.

- Mode 2: QOUT range 622 - 666.5MHz. QREG is a regenerated version

ofthe inputclockfrequency.

TheIDT5T940featuresaselectableloopbandwidth.

• Selectable loop bandwidths

• Hitless switchover

• Differential LVPECL, LVDS, or single-ended LVTTL input interface

• 2.375 - 3.465V core and I/O

APPLICATIONS:

• Terabit routers

• Gigabit ethernet systems

• SONET / SDH systems

• Digital cross connects

• Optical transceiver modules

• Available in VFQFPN package

FUNCTIONALBLOCKDIAGRAM

PLLBW1

PLLBW0

QREG

CLKIN

INPUT

MUX

DIVN

DIVM

PLL

QOUT

CONTROL

LOGIC

LOCK,

FREQ.

DETECTOR

REFIN

SELMODE

LOCK

CLK/

REF0

CLK/

REF1

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

OCTOBER 2008

2004 Integrated Device Technology, Inc.

DSC 6195/27

12 3 4 5 6 7...11

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与5T940-30NLI8相关器件

型号	品牌	获取价格	描述	数据表
5T9820NLI	IDT	获取价格	Clock Driver, 5T Series, 10 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC, VFQFPN-
5T9820NLI8	IDT	获取价格	Clock Driver, PQCC68
5T9890NLGI	IDT	获取价格	Clock Driver, 5T Series, 10 True Output(s), 0 Inverted Output(s), PQCC68, GREEN, PLASTIC,
5T9890NLGI8	IDT	获取价格	Clock Driver, 5T Series, 10 True Output(s), 0 Inverted Output(s), PQCC68, GREEN, PLASTIC,
5T9890NLI	IDT	获取价格	Clock Driver, 5T Series, 10 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC, VFQFPN-
5T9890NLI8	IDT	获取价格	Clock Driver, 5T Series, 10 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC, VFQFPN-
5T9891NLGI8	IDT	获取价格	Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, GREEN, PLASTIC, V
5T9891NLI	IDT	获取价格	Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC, VFQFN-68
5T9891NLI8	IDT	获取价格	Clock Driver, 5T Series, 5 True Output(s), 0 Inverted Output(s), PQCC68, PLASTIC, VFQFN-68
5T9950PFI	IDT	获取价格	PLL Based Clock Driver, 5T Series, 8 True Output(s), 0 Inverted Output(s), PQFP32, TQFP-32

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