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ICS844001AGIT PDF预览

ICS844001AGIT

更新时间: 2024-02-10 15:21:02
品牌 Logo 应用领域
矽成 - ICSI 时钟发生器
页数 文件大小 规格书
10页 162K
描述
FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR

ICS844001AGIT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-8针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.82
其他特性:ALSO OPERATES AT 3.3V SUPPLYJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.4 mm
湿度敏感等级:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出时钟频率:226.66 MHz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
峰值回流温度(摄氏度):260电源:2.5/3.3 V
主时钟/晶体标称频率:28.3 MHz认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Clock Generators
最大压摆率:115 mA最大供电电压:2.625 V
最小供电电压:2.375 V标称供电电压:2.5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Matte Tin (Sn) - annealed
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

ICS844001AGIT 数据手册

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PRELIMINARY  
ICS844001I  
Integrated  
Circuit  
Systems, Inc.  
FEMTOCLOCKS™ C RYSTAL-TO- LVDS  
CLOCK GENERATOR  
GENERAL DESCRIPTION  
FEATURES  
(1) Differential LVDS output  
The ICS844001I is a Fibre Channel Clock  
ICS  
Generator and a member of the HiPerClocksTM  
family of high performance devices from ICS.  
The ICS844001I uses an 18pF parallel resonant  
crystal over the range of 20.4MHz - 28.3MHz.  
HiPerClockS™  
Crystal oscillator interface, 18pF parallel resonant crystal  
(20.4MHz - 28.3MHz)  
Output frequency range: 81.66MHz - 226.66MHz  
VCO range: 490MHz - 680MHz  
For Fibre Channel applications, a 26.5625MHz crystal is used.  
The frequency select pin allows the device to generate  
either 106.25MHz or 212.5MHz from a 26.5625MHz  
crystal. To generate 187.5MHz for 12Gb Ethernet, a  
23.4375MHz crystal is used. The ICS844001I uses ICS’ 3rd  
generation low phase noise VCO technology and can  
achieve <1ps typical rms phase jitter, easily meeting Fibre  
Channel and Ethernet jitter requirements. The ICS844001I is  
packaged in a small 8-pin TSSOP, making it ideal for use in  
systems with limited board space.  
RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal  
(637kHz - 10MHz): 0.74ps (typical)  
3.3V or 2.5V operating supply  
-40°C to 85°C ambient operating temperature  
COMMON CONFIGURATION TABLE - FIBRE CHANNEL, 12Gb ETHERNET  
Inputs  
Output Frequency  
(MHz)  
Multiplication  
Value M/N  
Crystal Frequency (MHz) FREQ_SEL  
M
N
26.5625  
26.5625  
23.4375  
0
1
1
24  
24  
24  
6
3
3
4
8
8
106.25  
212.5  
187.5  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
Pullup  
FREQ_SEL  
VDDA  
VDD  
1
2
3
4
8
7
6
5
GND  
XTAL_OUT  
XTAL_IN  
Q
1
0
nQ  
÷3  
÷6  
XTAL_IN  
Q
VCO  
FREQ_SEL  
Phase  
Detector  
OSC  
490MHz - 680MHz  
nQ  
XTAL_OUT  
ICS844001I  
8-Lead TSSOP  
4.40mm x 3.0mm x 0.925mm  
package body  
M = ÷24 (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.  
844001AGI  
www.icst.com/products/hiperclocks.html  
REV. A JUNE 16, 2005  
1

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