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ASM3P2872AF-06OR

更新时间： 2024-09-28 06:38:11
品牌 Logo 应用领域
安森美 - ONSEMI 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
8页 133K
描述
Peak EMI Reducing Solution

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中文翻译

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ASM3P2872AF-06OR 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：SOT-23
包装说明：VSSOP, TSOP6,.11,37针数：6
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.3
Is Samacsys：N其他特性：ALSO OPERATES WITH 3.3V SUPPLY
JESD-30 代码：R-PDSO-G6JESD-609代码：e3
长度：2.9 mm湿度敏感等级：1
端子数量：6最高工作温度：70 °C
最低工作温度：最大输出时钟频率：30 MHz
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装等效代码：TSOP6,.11,37封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY 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：30 MHz
认证状态：Not Qualified座面最大高度：1 mm
子类别：Clock Generators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 (Sn)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：1.6 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, OTHER
Base Number Matches：1

ASM3P2872AF-06OR 数据手册

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ASM3P2872A  
Peak EMI  
Reducing Solution  
Features  
• Generates an EMI optimized clock signal at the  
The ASM3P2872A uses the most efficient and optimized  
modulation profile approved by the FCC and is  
implemented by using a proprietary all digital method.  
output.  
• Integrated loop filter components.  
• Operates with a 3.3V / 2.5V supply.  
• Operating current less than 6mA.  
• CMOS design.  
The ASM3P2872A modulates the output of a single PLL  
in order to “spread” the bandwidth of a synthesized clock,  
and more importantly, decreases the peak amplitudes of  
its harmonics. This results in significantly lower system  
EMI compared to the typical narrow band signal produced  
by oscillators and most frequency generators. Lowering  
EMI by increasing a signal’s bandwidth is called ‘spread  
spectrum clock generation.’  
• Input frequency range: 13MHz to 30MHz for 2.5V  
13MHz to 30MHz for 3.3V  
• Generates a 1X low EMI spread spectrum clock of  
the input frequency.  
• Frequency deviation: -1.25% @ 22MHz.  
• Available in 6L-TSOP (6L-TSOT-23) packages.  
Applications  
The ASM3P2872A is targeted towards all portable  
devices like MP3 players, Notebooks and digital still  
cameras.  
Product Description  
The ASM3P2872A is  
a versatile spread spectrum  
frequency modulator designed specifically for a wide  
range of clock frequencies. The ASM3P2872A reduces  
electromagnetic interference (EMI) at the clock source,  
allowing system wide reduction of EMI of all clock  
dependent signals. The ASM3P2872A allows significant  
system cost savings by reducing the number of circuit  
board layers, ferrite beads and shielding that are  
traditionally required to pass EMI regulations.  
Key Specifications  
Description  
Supply voltages  
Specification  
VDD = 3.3V /2.5V  
±200pS (Typ)  
Cycle-to-Cycle Jitter  
Output Duty Cycle  
45/55% (worst case)  
FIN/640  
Modulation Rate Equation  
Frequency Deviation  
-1.25% @ 22MHz  
Block Diagram  
VDD  
PLL  
Modulation  
XIN  
Crystal  
Oscillator  
Frequency  
Divider  
XOUT  
Output  
Divider  
Phase  
Detector  
Loop  
Filter  
VCO  
Feedback  
Divider  
ModOUT  
REFOUT  
VSS  
©2010 SCILLC. All rights reserved.  
JANUARY 2010 – Rev. 2  
Publication Order Number:  
ASM3P2872/D  
12345678

中文翻译

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ASM3P2872AF-06OR 替代型号

型号 品牌 替代类型 描述 数据表
ASM3P2775AF-06OR ONSEMI

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