Datasheet > ICS844008I

ICS844008I

更新时间： 2024-11-04 11:14:43

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
18页	454K
描述
FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

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中文翻译

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数据手册

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ICS844008I 数据手册

FEMTOCLOCKS™ CRYSTAL-TO-LVDS

FREQUENCY SYNTHESIZER

ICS844008I-01

GENERAL DESCRIPTION

FEATURES

The ICS844008I-01 is an 8 output LVDS Synthesizer

• Eight LVDS outputs

• Crystal oscillator interface

ICS

HiPerClockS™

optimized to generate GbE/10GbE reference clock

frequencies and is a member of the HiPerClocks^TM

family of high performance clock solutions from IDT.

Using a 25MHz parallel resonant crystal, the following

• Supports the following output frequencies:

125MHz or 156.25MHz

• VCO: 625MHz

frequencies can be generated based on the F_SEL pin: 125MHz

or 156.25MHz. The ICS844008I-01 uses IDT’s 3^rdgeneration low

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

phase jitter, easily meeting GbE/10GbE jitter requirements. The

ICS844008I-01 is packaged in a 32-pin TQFP or 32 VFQFN

packages.

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

(1.875MHz - 20MHz): 0.38ps (typical)

• Full 3.3V supply mode

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

• Available in lead-free (RoHS 6) packages

FREQUENCY SELECT FUNCTION TABLE

Input

Input Frequency (MHz)

F_SEL

M Divider Value

N Divider Value

Output Frequency (MHz)

25MHz

156.25

25MHz

125 (default)

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

OEA

QA0

Pulldown

nPLL_SEL

nQA0

QA1

32 31 30 29 28 27 26 25

QA0

nQA0

V^DD

QB3

nQB3

V^DD

nQA1

QA2

ICS844008I-01

32-Lead TQFP, E-Pad

7mm x 7mm x 1.0mm

package body

25MHz

VCO

625MHz

(w/25MHz

Reference)

XTAL_IN

QA1

QB2

nQB2

GND

QB1

nQB1

Phase

Detector

÷4

÷5

OSC

nQA2

QA3

nQA1

GND

QA2

XTAL_OUT

Y Package

Top View

nQA3

QB0

nQA2

M =

25 (fixed)

10 11 12 13 14 15 16

nQB0

QB1

nQB1

QB2

ICS844008I-01

32-Lead TQFP, E-Pad

7mm x 7mm x 1.0mm

package body

nQB2

QB3

Y Package

Top View

nQB3

Pulldown

ICS844008I-01

32-Lead VFQFN

5mm x 5mm x 0.925mm

package body

Pullup

F_SEL

Pullup

OEB

K Package

Top View

IDT^™/ ICS^™LVDS FREQUENCY SYNTHESIZER

ICS844008AYI-01 REV. B NOVEMBER 21, 2008

12 3 4 5 6 7...18

中文翻译

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与ICS844008I相关器件

型号	品牌	获取价格	描述	数据表
ICS844008I-15	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844011AGI	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR
ICS844011AGILF	IDT	获取价格	Clock Generator, 113.33MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, T
ICS844011AGILFT	IDT	获取价格	Clock Generator, 113.33MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, T
ICS844011AGIT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR
ICS844011I	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR
ICS844020-45	IDT	获取价格	FEMTOCLOCK? CRYSTAL-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER
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

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