Datasheet > ICS840021AGI

ICS840021AGI

更新时间： 2024-11-14 11:14:35

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
11页	185K
描述
FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

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ICS840021AGI 数据手册

ICS840021I

FEMTOCLOCKS™ CRYSTAL-TO-

LVCMOS/LVTTL CLOCK GENERATOR

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

The ICS840021I is a Gigabit Ethernet Clock • 1 LVCMOS/LVTTL output, 15Ω output impedence

ICS

Generator and a member of the HiPerClocks^TM

• Crystal oscillator interface designed for 25MHz,

family of high performance devices from ICS.The

18pF parallel resonant crystal

HiPerClockS™

ICS840021I uses a 25MHz crystal to synthesize

125MHz. The ICS840021I has excellent phase

• Output frequency: 125MHz

jitter performance, over the 1.875MHz – 20MHz integration

range. The ICS840021I is packaged in a small 8-pin TSSOP,

making it ideal for use in systems with limited board space.

• VCO range: 560MHz to 680MHz

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(1.875MHz - 20MHz): 0.48ps (typical) (3.3V)

Offset

Noise Power

100Hz ............... -97.8 dBc/Hz

1kHz ..............-124.6 dBc/Hz

10kHz ..............-132.5 dBc/Hz

100kHz ..............-131.1 dBc/Hz

• Voltage supply modes:

V_DD/V_DDA= 3.3V

V_DD/V_DDA= 2.5V

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

• Lead-Free package fully RoHS compliant

BLOCK DIAGRAM

PIN ASSIGNMENT

VDDA

VDD

25MHz

XTAL_IN

XTAL_OUT

XTAL_IN

GND

Phase

Detector

÷5

OSC

VCO

XTAL_OUT

ICS840021I

÷25

(fixed)

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm package body

G Package

TopView

840021AGI

www.icst.com/products/hiperclocks.html

REV. A MAY 19, 2005

12 3 4 5 6 7...11

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与ICS840021AGI相关器件

型号	品牌	获取价格	描述	数据表
ICS840021AGILF	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840021AGILFT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840021AGIT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840021AGLF	IDT	获取价格	Clock Generator, 125MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
ICS840021AGLFT	IDT	获取价格	Clock Generator, 125MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
ICS840021AGLN	IDT	获取价格	Clock Generator, 125MHz, PDSO8, 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
ICS840021AGT	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO-LVCMOS/ LVTTL CLOCK GENERATOR
ICS840021I	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840022	ICSI	获取价格	FEMTOCLOCKS⑩CRYSTAL-TO LVCMOS/LVTTL CLOCK GEN
ICS840022AG	ICSI	获取价格	FEMTOCLOCKS⑩CRYSTAL-TO LVCMOS/LVTTL CLOCK GEN