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844008AYI-15LFT PDF预览

844008AYI-15LFT

更新时间: 2024-01-08 00:49:08
品牌 Logo 应用领域
艾迪悌 - IDT 时钟外围集成电路晶体
页数 文件大小 规格书
13页 832K
描述
Clock Generator, 125MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP-32

844008AYI-15LFT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFP
包装说明:LQFP,针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.24
JESD-30 代码:S-PQFP-G32JESD-609代码:e3
长度:7 mm湿度敏感等级:3
端子数量:32最高工作温度:85 °C
最低工作温度:-40 °C最大输出时钟频率:125 MHz
封装主体材料:PLASTIC/EPOXY封装代码:LQFP
封装形状:SQUARE封装形式:FLATPACK, LOW PROFILE
峰值回流温度(摄氏度):260主时钟/晶体标称频率:27.2 MHz
认证状态:Not Qualified座面最大高度:1.6 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) - annealed端子形式:GULL WING
端子节距:0.8 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:7 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

844008AYI-15LFT 数据手册

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PRELIMINARY  
ICS844008I-15  
Integrated  
Circuit  
Systems, Inc.  
FEMTOCLOCKS™ C RYSTAL-TO-  
LVDS FREQUENCY SYNTHESIZER  
GENERAL DESCRIPTION  
FEATURES  
The ICS844008I-15 is an 8 output LVDS • Eight LVDS outputs  
ICS  
HiPerClockS™  
Synthesizer optimized to generate PCI Express  
• Crystal oscillator interface  
reference clock frequencies and is a member  
• Supports the following output frequencies:  
100MHz or 125MHz  
of the HiPerClocksTM family of high performance  
clock solutions from ICS. Using a 25MHz  
• VCO: 500MHz  
parallel resonant crystal, the following frequencies can be  
generated based on F_SEL pin: 100MHz or 125MHz. The  
ICS844008I-15 uses ICS’ 3rd generation low phase noise  
VCO technology and can achieve <1ps typical rms phase  
jitter, easily meeting PCI Express jitter requirements. The  
ICS844008I-15 is packaged in a 32-pin LQFP package.  
• RMS phase jitter @ 125MHz, using a 25MHz crystal  
(1.875MHz - 20MHz): 0.42ps (typical)  
• Full 3.3V supply modes  
• -40°C to 85°C ambient operating temperature  
• Available in both standard and lead-free RoHS compliant  
packages  
FREQUENCY SELECT FUNCTIONTABLE  
Input  
Input  
Output  
Frequency  
(MHz)  
M Divider N Divider M/N Divider Frequency  
F_SEL  
Value  
Value  
Value  
(MHz)  
25MHz  
0
20  
4
5
125  
25MHz  
1
20  
5
4
100  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
Pullup  
OE1  
Q0  
Pulldown  
nPLL_SEL  
nQ0  
32 31 30 29 28 27 26 25  
Q1  
1
2
3
4
5
6
7
8
24  
23  
22  
21  
20  
19  
18  
17  
Q0  
nQ0  
VDD  
Q1  
Q7  
1
0
nQ1  
Q2  
nQ7  
VDD  
Q6  
25MHz  
ICS844008I-15  
32-Lead LQFP  
7mm x 7mm x 1.4mm  
package body  
Y Package  
VCO  
500MHz  
(w/25MHz  
Reference)  
XTAL_IN  
Phase  
Detector  
÷4  
÷5  
OSC  
nQ2  
Q3  
nQ1  
GND  
Q2  
nQ6  
GND  
Q5  
XTAL_OUT  
nQ3  
Q4  
Top View  
M = ÷20 (fixed)  
nQ2  
nQ5  
9
10 11 12 13 14 15 16  
nQ4  
Q5  
nQ5  
Q6  
nQ6  
Q7  
nQ7  
Pulldown  
MR  
Pullup  
F_SEL  
Pullup  
OE2  
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.  
844008AYI-15  
www.icst.com/products/hiperclocks.html  
REV.B APRIL 28, 2006  
1

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