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ICS841664AGILFT

更新时间: 2024-11-02 12:28:03
品牌 Logo 应用领域
艾迪悌 - IDT 晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
19页 311K
描述
FemtoClock Crystal-to-HCSL Clock Generator

ICS841664AGILFT 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:TSSOP,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.34
JESD-30 代码:R-PDSO-G28JESD-609代码:e3
长度:9.7 mm端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:156.25 MHz封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP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
主时钟/晶体标称频率:25 MHz认证状态:Not Qualified
座面最大高度:1.2 mm最大供电电压:3.465 V
最小供电电压:3.135 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
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:6.1 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

ICS841664AGILFT 数据手册

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®
FemtoClock Crystal-to-HCSL  
ICS841664I  
Clock Generator  
DATA SHEET  
General Description  
Features  
The ICS841664I is an optimized sRIO clock generator and a  
member of the family of high-performance clock solutions from IDT.  
The device uses a 25MHz parallel crystal to generate 125MHz and  
156.25MHz clock signals, replacing solution requiring multiple  
oscillator and fanout buffer solutions. The device has excellent phase  
jitter (< 1ps rms) suitable to clock components requiring precise and  
low-jitter sRIO clock signals. Designed for telecom, networking and  
industrial application, the ICS841664I can also drive the high-speed  
sRIO SerDes clock inputs of communication processors, DSPs,  
switches and bridges.  
Four differential HCSL clock outputs: configurable for sRIO  
(125MHz or 156.25MHz) clock signals  
One REF_OUT LVCMOS/LVTTL clock output  
Selectable crystal oscillator interface, 25MHz, 18pF parallel  
resonant crystal or LVCMOS/LVTTL single-ended reference clock  
input or LVCMOS/LVTTL single-ended input  
Supports the following output frequencies: 125MHz or 156.25MHz  
VCO: 625MHz  
Supports PLL bypass and output enable functions  
RMS phase jitter, using a 25MHz crystal (1.875MHz - 20MHz):  
0.45ps (typical) @ 125MHz  
Full 3.3V power supply mode  
-40°C to 85°C ambient operating temperature  
Available in lead-free (RoHS 6) package  
Pin Assignment  
V
DD  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
IREF  
FSEL0  
FSEL1  
QB0  
REF_OUT  
GND  
2
Block Diagram  
3
QA0  
4
XTAL_IN  
25MHz  
XTAL_OUT  
1
0
nQA0  
DDOA  
5
6
nQB0  
VDDOB  
QA0  
0
1
OSC  
V
nQA0  
FemtoClock  
7
GND  
QA1  
GND  
fref  
PLL  
÷NA  
8
QB1  
nQB1  
MR/nOE  
VCO = 625MHz  
Pulldown  
Pulldown  
REF_IN  
QA1  
nQA1  
nREF_OE  
9
nQA1  
10  
11  
12  
13  
14  
REF_SEL  
BYPASS  
REF_IN  
VDD  
XTAL_IN  
XTAL_OUT  
GND  
M = ÷25  
QB0  
REF_SEL  
IREF  
VDDA  
nQB0  
÷NB  
ICS841664I  
28-Lead TSSOP  
6.1mm x 9.7mm x 0.925mm  
package body  
G Package  
Pulldown  
QB1  
BYPASS  
FSEL[0:1]  
MR/nOE  
Pulldown  
Pulldown  
nQB1  
Top View  
REF_OUT  
Pullup  
nREF_OE  
ICS841664AGI REVISION A AUGUST 10, 2011  
1
©2011 Integrated Device Technology, Inc.  

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