Datasheet > ICS8421004AGI-01T

ICS8421004AGI-01T

更新时间： 2024-11-21 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	207K
描述
FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER

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PRELIMINARY

ICS8421004I-01

FEMTOCLOCKS™ CRYSTAL-TO-

HSTL FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

The ICS8421004I-01 is a 4 output HSTL • Four HSTL outputs (VOHmax = 1.4V)

ICS

Synthesizer optimized to generate Ethernet

• Selectable crystal oscillator interface or

reference clock frequencies and is a member of

LVCMOS/LVTTL single-ended input

HiPerClockS™

the HiPerClocks^TMfamily of high performance

clock solutions from ICS. Using a 25MHz 18pF

• Supports the following output frequencies: 156.25MHz,

125MHz, 62.5MHz

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 ICS8421004I-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 ICS8421004I-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): 0.44ps (typical)

• Power supply modes:

Core/Output

3.3V/1.8V

2.5V/1.8V

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

FREQUENCY SELECT FUNCTION TABLE

PIN ASSIGNMENT

nQ1

nQ2

Output

Frequency

(25MHz Ref.)

M Divider N Divider

M/N

Divider Value

V^DDO

F_SEL1 F_SEL0

Value

6.25

156.25

125

nQ0

nPLL_SEL

nQ3

GND

V^DD

nXTAL_SEL

TEST_CLK

GND

2.5

62.5

V^DDA

not used

F_SEL0

V^DD

XTAL_IN

F_SEL1

XTAL_OUT

ICS8421004I-01

24-LeadTSSOP

4.40mm x 7.8mm x 0.92mm

BLOCK DIAGRAM

F_SEL[1:0]

Pulldown

package body

Pulldown

nPLL_SEL

G Package

TopView

F_SEL[1:0]

nQ0

Pulldown

TEST_CLK

0 0 ÷4

0 1 ÷5

25MHz

XTAL_IN

1 0 ÷10

1 1 Not Used

nQ1

Phase

Detector

VCO

OSC

XTAL_OUT

Pulldown

nXTAL_SEL

nQ2

M = 25 (fixed)

nQ3

Pulldown

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.

8421004AGI-01

www.icst.com/products/hiperclocks.html

REV. A MACH 29, 2005

12 3 4 5 6 7...13

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与ICS8421004AGI-01T相关器件

型号	品牌	获取价格	描述	数据表
ICS8421004AGILFT	IDT	获取价格	Clock Generator, 226.66MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
ICS8421004AGIT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421004I	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421004I-01	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER
ICS8421004I-01LF	IDT	获取价格	PLL/Frequency Synthesis Circuit
ICS8421004I-01T	IDT	获取价格	PLL/Frequency Synthesis Circuit
ICS8422002AGI	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER
ICS8422002AGI-01	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVHSTL FREQUENCY SYNT
ICS8422002AGI-01T	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVHSTL FREQUENCY SYNT
ICS8422002AGILF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER

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