Datasheet > ICS843004A01

ICS843004A01

更新时间： 2024-11-02 11:14:39

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
15页	225K
描述
FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER

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ICS843004A01 数据手册

ICS843004-01

FEMTOCLOCKS™ CRYSTAL-TO-

3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

The ICS843004-01 is a 4 output LVPECL • Four 3.3V LVPECL outputs

ICS

synthesizer optimized to generate Ethernet

reference clock frequencies and is a member of

the HiPerClocks^TMfamily of high performance clock

solutions from ICS. Using a 25MHz 18pF parallel

• Selectable crystal oscillator interface

or LVCMOS/LVTTL single-ended input

HiPerClockS™

• Supports the following output frequencies:

156.25MHz, 125MHz and 62.5MHz

resonant crystal, the following frequencies can be generated

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

156.25MHz, 125MHz, 62.5MHz. The ICS843004-01 uses

ICS’ 3^rdgeneration low phase noise VCO technology and can

achieve 1ps or lower typical rms phase jitter, easily meeting

Ethernet jitter requirements. The ICS843004-01 is packaged

in a small 24-pin TSSOP package.

• VCO range: 560MHz - 680MHz

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

(1.875MHz - 20MHz): 0.57ps (typical)

• RMS phase noise at 156.25MHz (typical)

Phase noise:

Offset

Noise Power

100Hz ............... -95.5 dBc/Hz

1KHz ................ -118 dBc/Hz

10KHz ................ -126 dBc/Hz

100KHz ..............-126.6 dBc/Hz

• Full 3.3V supply mode

• -30°C to 85°C ambient operating temperature

FREQUENCY SELECT FUNCTION TABLE

PIN ASSIGNMENT

nQ1

nQ2

Inputs

Output Frequency

(25MHz Ref.)

M Divider N Divider

M/N

Divider Value

V^CCo

V^CCO

F_SEL1 F_SEL0

Value

6.25

156.25

125

nQ0

nQ3

V^EE

nPLL_SEL

VCC

nXTAL_SEL

2.5

62.5

V^CCA

TEST_CLK

V^EE

XTAL_IN

not used

F_SEL0

V^CC

F_SEL1

XTAL_OUT

ICS843004-01

24-LeadTSSOP

4.40mm x 7.8mm x 0.92mm

BLOCK DIAGRAM

Pulldown

F_SEL[1:0]

package body

G Package

TopView

Pulldown

nPLL_SEL

F_SEL[1:0]

0 0 ÷4

Pulldown

nQO

TEST_CLK

0 1 ÷5

25MHz

XTAL_IN

1 0 ÷10

VCO

625MHz

(w/25MHz

Reference)

1 1 not used

Phase

Detector

nQ1

OSC

XTAL_OUT

Pulldown

nXTAL_SEL

nQ2

M = 25 (fixed)

nQ3

Pulldown

843004AG-01

www.icst.com/products/hiperclocks.html

REV. B MAY 6, 2005

12 3 4 5 6 7...15

中文翻译

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与ICS843004A01相关器件

型号	品牌	获取价格	描述	数据表
ICS843004A02	ICSI	获取价格	CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843004AG	ICSI	获取价格	FEMTOCLOCKS⑩ LVCMOS/CRYSTAL-TO- 3.3V LVPECL F
ICS843004AG-01	ICSI	获取价格	FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843004AG-01LFT	IDT	获取价格	Clock Generator, 156.25MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
ICS843004AG-01T	ICSI	获取价格	FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843004AG-02	ICSI	获取价格	CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843004AG-02LF	IDT	获取价格	Clock Generator, 637.5MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
ICS843004AG-02LFT	IDT	获取价格	Clock Generator, 637.5MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
ICS843004AG-02T	ICSI	获取价格	CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843004AGI	ICSI	获取价格	FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER

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