Datasheet > ICS844020-45

ICS844020-45

更新时间： 2024-02-04 20:44:00

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
13页	603K
描述
FEMTOCLOCK? CRYSTAL-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER

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中文翻译

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数据手册

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ICS844020-45 数据手册

PRELIMINARY

FEMTOCLOCK™ CRYSTAL-TO-LVDS/

LVCMOS FREQUENCY SYNTHESIZER

ICS844020-45

GENERAL DESCRIPTION

FEATURES

• Sixteen differential LVDS outputs at 125MHz

One differential LVDS output at 156.25MHz

The ICS844020-45 is a 20 output synthesizer

optimized to generate Gigabit and 10 Gigabit

ICS

HiPerClockS™

One LVCMOS/LVTTL single-ended output at 125MHz

One LVCMOS/LVTTL single-ended output at 25MHz

One LVCMOS/LVTTL single-ended output at 3.90625MHz

Ethernet clocks and is a member of the

HiPerClockS™ family of high performance clock

solutions from ICS. Using a 25MHz 18pF parallel

resonant crystal, the device will generate 156.25, 125MHz,

25MHz and 3.90625MHz clocks with mixed LVDS and LVTTL

output logic. The ICS844020-45 uses ICS’ 3rd generation low

phase noise VCO technology and can achieve <1ps typical rms

phase jitter, easily meeting Ethernet jitter requirements. The

ICS844020-45 is packaged in a 64-pin TQFP package with

exposed pad for optimum thermal performance.

• Crystal oscillator interface

• VCO range: 490MHz - 680MHz

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.4ps (typical)

• RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.37ps (typical)

• Full 2.5V operating supply

PIN ASSIGNMENT

• 0°C to 70°C ambient operating temperature

• Available in both standard and lead-free RoHS-compliant

packages

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

GND

nQ14

Q14

GND

nQ0

V^DD

nQ13

Q13

nQ1

GND

ICS844020-45

64-Lead TQFP, EPAD

10mm x 10mm x 1.0mm

package body

GND

nQ12

Q12

V^DD

nQ11

nQ2

V^DD

Y package

Top View

Q11

nQ3

GND

nQ10

125MHz

Q10

V^DD

nQ4

V^DD

nQ0

1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32

BLOCK DIAGRAM

÷5

Q15

25MHz

nQ15

XTAL_IN

Phase

Detector

VCO

490-680MHz

OSC

Q17

XTAL_OUT

156.25MHz

nQ16

÷4

Q16

÷25

3.90625MHz

Q18

÷160

25MHz

Q19

The Preliminary Information presented herein represents a product in prototyping or pre-production.The noted characteristics are based on initial product

characterization.Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.

IDT^™/ ICS^™LVDS/LVCMOS FREQUENCY SYNTHESIZER

ICS844020-45 REV A JUNE 14, 2006

12 3 4 5 6 7...13

中文翻译

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与ICS844020-45相关器件

型号	品牌	获取价格	描述	数据表
ICS844021-01	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844021AG-01LF	IDT	获取价格	Clock Generator, 170MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSO
ICS844021AG-01T	IDT	获取价格	Clock Generator, 170MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
ICS844021AGI-01	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR
ICS844021AGI-01LF	IDT	获取价格	Clock Generator, 170MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
ICS844021AGI-01T	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR
ICS844021BG-01LFT	IDT	获取价格	Clock Generator, PDSO8
ICS844021BGI-01	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844021BGI-01LF	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS CLOCK GENERATOR
ICS844021BGI-01LFT	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS CLOCK GENERATOR

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