Datasheet > ICS8421002AGI-01T

ICS8421002AGI-01T

更新时间： 2024-11-02 11:14:35

品牌	Logo	应用领域
矽成 - ICSI		晶体外围集成电路光电二极管时钟
页数	文件大小	规格书
13页	198K
描述
FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER

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ICS8421002I-01

FEMTOCLOCKS™ CRYSTAL-TO-

HSTL FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

The ICS8421002I-01 is a 2 output HSTL • Two HSTL outputs (VOHmax = 1.5V)

ICS

HiPerClockS™

Synthesizer optimized to generate Ethernet

• Selectable crystal oscillator interface

reference clock frequencies and is a member of

or LVCMOS/LVTTL single-ended input

the HiPerClocks^TMfamily of high performance

clock solutions from ICS. Using a 25MHz,

• Supports the following output frequencies: 156.25MHz,

125MHz, 62.5MHz

18pF parallel resonant crystal, the following frequencies

can be generated based on the 2 frequency select pins

(F_SEL[1:0]): 156.25MHz, 125MHz and 62.5MHz. The

ICS8421002I-01 uses ICS’ 3^rdgeneration low phase

noise VCO technology and can achieve 1ps or lower typi-

cal rms phase jitter, easily meeting Ethernet jitter

requirements. The ICS8421002I-01 is packaged in a small

20-pin TSSOP package.

• VCO range: 560MHz - 680MHz

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

(1.875MHz - 20MHz): 0.44ps (typical)

• Power supply modes:

Core/Output

3.3V/1.8V

2.5V/1.8V

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

• Available in both standard and lead-free RoHS compliant

packages

FREQUENCY SELECT FUNCTION TABLE

PIN ASSIGNMENT

V^DDO

Output Frequency

M Divider N Divider

nQ1

(25MHz Ref.)

F_SEL1 F_SEL0

GND

V^DD

nQ0

Value

156.25

125

nXTAL_SEL

REF_CLK

XTAL_IN

XTAL_OUT

F_SEL1

nPLL_SEL

V^DDA

F_SEL0

V^DD

62.5

not used

ICS8421002I-01

20-Lead TSSOP

6.5mm x 4.4mm x 0.92mm

BLOCK DIAGRAM

F_SEL[1:0]

package body

G Package

Top View

Pulldown

nPLL_SEL

F_SEL[1:0]

0 0 ÷4 (default)

0 1 ÷5

nQ0

Pulldown

REF_CLK

25MHz

XTAL_IN

1 0 ÷10

1 1 Not Used

Phase

Detector

VCO

OSC

nQ1

XTAL_OUT

Pulldown

nXTAL_SEL

M = 25 (fixed)

Pulldown

8421002AGI-01

www.icst.com/products/hiperclocks.html

REV.A FEBRUARY 6, 2006

12 3 4 5 6 7...13

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与ICS8421002AGI-01T相关器件

型号	品牌	获取价格	描述	数据表
ICS8421002AGILF	IDT	获取价格	Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153
ICS8421002AGILF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002AGILFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002AGILFT	IDT	获取价格	Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153
ICS8421002AGIT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002AI	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002I	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002I-01	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421002IAGIT	IDT	获取价格	PLL/Frequency Synthesis Circuit
ICS8421004AGI	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER

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