ICS844002

更新时间： 2024-11-04 04:58:15

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
16页	334K
描述
FEMTOCLOCKS⑩ 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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ICS844002 数据手册

FEMTOCLOCKS™ CRYSTAL-TO-LVDS

FREQUENCY SYNTHESIZER

ICS844002

GENERAL DESCRIPTION

FEATURES

The ICS844002 is a 2 output LVDS Synthesizer

• Two LVDS outputs

ICS

HiPerClockS™

optimized to generate Fibre Channel reference

clock frequencies and is a member of the

HiPerClocks^TMfamily of high performance clock

solutions from IDT. Using a 26.5625MHz 18pF

• Selectable crystal oscillator interface

or LVCMOS/LVTTL single-ended input

• Supports the following output frequencies: 212.5MHz,

187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz

parallel resonant crystal, the following frequencies can be

generated based on the 2 frequency select pins (F_SEL[1:0]):

212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and

53.125MHz. The ICS844002 uses IDT’s 3^rdgeneration low

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

phase jitter, easily meeting Fibre Channel jitter requirements.

The ICS844002 is packaged in a small 20-pin TSSOP package.

• VCO range: 560MHz - 680MHz

• RMS phase jitter @ 212.5MHz, using a 26.5625MHz crystal

(637kHz - 10MHz): 0.65ps (typical)

• Full 3.3V or 2.5V supply modes

• 0°C to 70°C ambient operating temperature

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

PIN ASSIGNMENT

FREQUENCY SELECT FUNCTION TABLE

V^DDO

Inputs

nQ1

GND

nXTAL_SEL

REF_CLK

XTAL_IN

XTAL_OUT

F_SEL1

Output

Frequency

(MHz)

Input

M Divider N Divider M/N Divider

Frequency F_SEL1 F_SEL0

(MHz)

nQ0

nPLL_SEL

V^DDA

F_SEL0

V^DD

Value

26.5625

23.4375

212.5

159.375

106.25

53.125

187.5

ICS844002

20-Lead TSSOP

6.5mm x 4.4mm x 0.92mm

package body

G Package

Top View

BLOCK DIAGRAM

Pulldown

F_SEL[1:0]

Pulldown

nPLL_SEL

F_SEL[1:0]

0 0 ÷3

nQ0

Pulldown

REF_CLK

0 1 ÷4

26.5625MHz

XTAL_IN

1 0 ÷6

VCO

637.5MHz

(w/26.5625MHz

Reference)

1 1 ÷12

Phase

Detector

OSC

nQ1

XTAL_OUT

Pulldown

nXTAL_SEL

M = 24 (fixed)

Pulldown

IDT^™/ ICS^™LVDS FREQUENCY SYNTHESIZER

ICS844002AG REV. A SEPTEMBER 28, 2007

12 3 4 5 6 7...16

中文翻译

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与ICS844002相关器件

型号	品牌	获取价格	描述	数据表
ICS844002-01	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVDS FREQUENCY SYNTHES
ICS844002AG	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS844002AGI	IDT	获取价格	Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, MO-153, TSSOP-20
ICS844002AGI-01	IDT	获取价格	Clock Generator, 170MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, MO-153, TSSOP-20
ICS844002AGI-01	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844002AGI-01LF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844002AGI-01LFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844002AGI-01T	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER
ICS844002AGILF	IDT	获取价格	Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153
ICS844002AGILFT	IDT	获取价格	Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153

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