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844021AGI-01T PDF预览

844021AGI-01T

更新时间: 2024-11-04 21:11:55
品牌 Logo 应用领域
艾迪悌 - IDT 光电二极管
页数 文件大小 规格书
10页 467K
描述
Clock Generator, PDSO8

844021AGI-01T 技术参数

是否Rohs认证: 不符合生命周期:Active
Reach Compliance Code:unknown风险等级:5.88
JESD-30 代码:R-PDSO-G8端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH电源:2.5/3.3 V
认证状态:Not Qualified子类别:Clock Generators
表面贴装:YES温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUALBase Number Matches:1

844021AGI-01T 数据手册

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PRELIMINARY  
ICS844021I-01  
Integrated  
Circuit  
Systems, Inc.  
FEMTOCLOCKS™ CRYSTAL-TO- LVDS  
CLOCK GENERATOR  
GENERAL DESCRIPTION  
FEATURES  
(1) Differential LVDS output  
The ICS844021I-01 is an Ethernet Clock  
ICS  
Generator and a member of the HiPerClocksTM  
family of high performance devices from ICS.The  
ICS844021I-01 uses an 18pF parallel resonant  
crystal over the range of 24.5MHz - 34MHz. For  
HiPerClockS™  
Crystal oscillator interface, 18pF parallel resonant crystal  
(24.5MHz - 34MHz)  
Output frequency range: 122.5MHz - 170MHz  
VCO range: 490MHz - 680MHz  
Ethernet applications, a 25MHz crystal is used. The  
ICS844021I-01 has excellent <1ps phase jitter performance,  
over the 1.875MHz - 20MHz integration range. The  
ICS844021I-01 is packaged in a small 8-pin TSSOP, making  
it ideal for use in systems with limited board space.  
RMS phase jitter @ 125MHz, using a 25MHz crystal  
(1.875MHz - 20MHz): 0.45ps (typical)  
3.3V or 2.5V operating supply  
-40°C to 85°C ambient operating temperature  
COMMON CONFIGURATION TABLE - Gb ETHERNET  
Inputs  
Output Frequency  
(MHz)  
Multiplication  
Value M/N  
Crystal Frequency (MHz)  
M
N
25  
20  
20  
20  
4
4
4
5
5
5
125  
26.666  
33.33  
133.33  
166.66  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
Pullup  
OE  
VDDA  
GND  
VDD  
Q0  
1
2
3
4
8
7
6
5
XTAL_OUT  
XTAL_IN  
nQ0  
OE  
XTAL_IN  
OSC  
XTAL_OUT  
VCO  
Q0  
Phase  
Detector  
N = ÷4 (fixed)  
490MHz - 680MHz  
nQ0  
ICS844021I-01  
8-Lead TSSOP  
4.40mm x 3.0mm x 0.925mm  
package body  
M = ÷20 (fixed)  
G Package  
TopView  
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.  
844021AGI-01  
www.icst.com/products/hiperclocks.html  
REV. A MARCH 29, 2005  
1

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