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844008AYI-01LF PDF预览

844008AYI-01LF

更新时间: 2024-02-25 02:17:27
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
页数 文件大小 规格书
18页 454K
描述
FEMTOCLOCKS? CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

844008AYI-01LF 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:PTQFP
包装说明:7 X 7 MM, 1.0 MM HEIGHT, ROHS COMPLIANT, MS-026ABA-HD, TQFP-32针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
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:156.25 MHz
封装主体材料:PLASTIC/EPOXY封装代码:HTQFP
封装形状:SQUARE封装形式:FLATPACK, HEAT SINK/SLUG, THIN PROFILE
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) - 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:NOT SPECIFIED宽度:7 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

844008AYI-01LF 数据手册

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FEMTOCLOCKS™ CRYSTAL-TO-LVDS  
FREQUENCY SYNTHESIZER  
ICS844008I-01  
GENERAL DESCRIPTION  
FEATURES  
The ICS844008I-01 is an 8 output LVDS Synthesizer  
• Eight LVDS outputs  
• Crystal oscillator interface  
ICS  
HiPerClockS™  
optimized to generate GbE/10GbE reference clock  
frequencies and is a member of the HiPerClocksTM  
family of high performance clock solutions from IDT.  
Using a 25MHz parallel resonant crystal, the following  
• Supports the following output frequencies:  
125MHz or 156.25MHz  
• VCO: 625MHz  
frequencies can be generated based on the F_SEL pin: 125MHz  
or 156.25MHz. The ICS844008I-01 uses IDT’s 3rd generation low  
phase noise VCO technology and can achieve <1ps typical rms  
phase jitter, easily meeting GbE/10GbE jitter requirements. The  
ICS844008I-01 is packaged in a 32-pin TQFP or 32 VFQFN  
packages.  
• RMS phase jitter @ 156.25MHz, using a 25MHz crystal  
(1.875MHz - 20MHz): 0.38ps (typical)  
• Full 3.3V supply mode  
• -40°C to 85°C ambient operating temperature  
• Available in lead-free (RoHS 6) packages  
FREQUENCY SELECT FUNCTION TABLE  
Input  
Input Frequency (MHz)  
F_SEL  
M Divider Value  
N Divider Value  
Output Frequency (MHz)  
25MHz  
0
25  
4
156.25  
25MHz  
1
25  
5
125 (default)  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
Pullup  
OEA  
QA0  
Pulldown  
nPLL_SEL  
nQA0  
QA1  
32 31 30 29 28 27 26 25  
1
2
3
4
5
6
7
8
24  
23  
22  
21  
20  
19  
18  
17  
QA0  
nQA0  
VDD  
QB3  
nQB3  
VDD  
1
nQA1  
QA2  
ICS844008I-01  
32-Lead TQFP, E-Pad  
7mm x 7mm x 1.0mm  
package body  
25MHz  
VCO  
625MHz  
(w/25MHz  
Reference)  
XTAL_IN  
QA1  
QB2  
nQB2  
GND  
QB1  
nQB1  
Phase  
Detector  
÷4  
÷5  
OSC  
0
nQA2  
QA3  
nQA1  
GND  
QA2  
XTAL_OUT  
Y Package  
Top View  
nQA3  
QB0  
nQA2  
M =  
÷
25 (fixed)  
9
10 11 12 13 14 15 16  
nQB0  
QB1  
nQB1  
QB2  
ICS844008I-01  
32-Lead TQFP, E-Pad  
7mm x 7mm x 1.0mm  
package body  
nQB2  
QB3  
Y Package  
Top View  
nQB3  
Pulldown  
MR  
ICS844008I-01  
32-Lead VFQFN  
5mm x 5mm x 0.925mm  
package body  
Pullup  
F_SEL  
Pullup  
OEB  
K Package  
Top View  
IDT/ ICSLVDS FREQUENCY SYNTHESIZER  
1
ICS844008AYI-01 REV. B NOVEMBER 21, 2008  

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