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844004AK-104 PDF预览

844004AK-104

更新时间: 2024-02-05 21:33:44
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
16页 899K
描述
FEMTOCLOCKS™ CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER

844004AK-104 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Active零件包装代码:QFN
包装说明:HVQCCN, LCC32,.2SQ,20针数:32
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.31
Is Samacsys:N其他特性:ALSO OPERATES AT 3.3V SUPPLY
JESD-30 代码:S-XQCC-N32JESD-609代码:e0
长度:5 mm湿度敏感等级:3
端子数量:32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:UNSPECIFIED封装代码:HVQCCN
封装等效代码:LCC32,.2SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):225
电源:2.5/3.3 V主时钟/晶体标称频率:26.5625 MHz
认证状态:Not Qualified座面最大高度:1 mm
子类别:Clock Generators最大压摆率:105 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:Tin/Lead (Sn85Pb15)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:5 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

844004AK-104 数据手册

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FEMTOCLOCKS™ CRYSTAL-TO-LVDS  
FREQUENCY SYNTHESIZER  
ICS844004-104  
General Description  
Features  
The ICS844004-104 is a 4 output LVDS Synthesizer  
Four differential LVDS outputs  
S
IC  
optimized to generate Fibre Channel reference clock  
frequencies and is a member of the HiPerClocksTM  
family of high performance clock solutions from IDT.  
Using a 26.5625MHz 18pF parallel resonant crystal,  
Selectable crystal oscillator interface or LVCMOS/LVTTL  
HiPerClockS™  
single-ended input  
Supports the following output frequencies: 212.5MHz,  
187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz  
the following frequencies can be generated based on the 2  
frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz,  
159.375MHz, 106.25MHz and 53.125MHz. The ICS844004-104  
uses IDT’s 3rd generation low phase noise VCO technology and  
can achieve <1ps typical rms phase jitter, easily meeting Fibre  
Channel jitter requirements. The ICS844004-104 is packaged in a  
32-pin VFQFN package.  
VCO range: 560MHz - 680MHz  
RMS phase jitter at 212.5MHz (637kHz – 10MHz), using a  
26.5625MHz crystal: <1ps (typical)  
Full 3.3V or 2.5V output supply modes  
0°C to 70°C ambient operating temperature  
Available in both standard (RoHS 5) and lead-free (RoHS 6)  
packages  
Table 1. Frequency Table  
Inputs  
Pin Assignment  
Input  
Frequency  
(MHz)  
F_SEL1 F_SEL0  
M
N
M/N  
Output  
32 31 30 29 28 27 26 25  
Divider Divider Divider Frequency  
Value  
1
2
3
4
5
6
7
8
Q0  
Q3  
24  
23  
22  
21  
20  
Value  
Value  
(MHz)  
nQ0  
MR  
nQ3  
GND  
nc  
ICS844004-104  
32 Lead VFQFN  
5mm x 5mm x 0.925mm  
package body  
K Package  
212.5  
(default)  
26.5625  
0
0
24  
3
8
nPLL_SEL  
nc  
26.5625  
26.5625  
26.5625  
0
1
1
1
0
1
24  
24  
24  
4
6
6
4
2
159.375  
106.25  
53.125  
nc  
nc  
nc  
nc  
nXTAL_SEL  
REF_CLK  
GND  
19  
18  
17  
Top View  
12  
187.5  
(default)  
9
10 11 12 13 14 15 16  
23.4375  
0
0
24  
3
8
Block Diagram  
2
Pulldown  
F_SEL[1:0]  
nPLL_SEL  
Pulldown  
Q0  
F_SEL[1:0]  
nQ0  
Pulldown  
0 0 ÷3  
0 1 ÷4  
1 0 ÷6  
1 1 ÷12  
REF_CLK  
XTAL_IN  
1
0
1
0
Q1  
26.5625MHz  
VCO  
637.5MHz  
(w/26.5625MHz  
Reference)  
nQ1  
Phase  
Detector  
OSC  
XTAL_OUT  
nXTAL_SEL  
Q2  
Pulldown  
nQ2  
Q3  
M = 24 (fixed)  
nQ3  
Pulldown  
MR  
IDT™ / ICS™ LVDS FREQUENCY SYNTHESIZER  
1
ICS844004AK-104 REV. A SEPTEMBER 15, 2008  

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