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ASM3I2598AF-06-OR

更新时间： 2024-11-17 06:38:07
品牌 Logo 应用领域
PULSECORE 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
7页 297K
描述
Low Power Peak EMI Reducing Solution

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ASM3I2598AF-06-OR 技术参数

生命周期：Obsolete包装说明：ROHS COMPLIANT, TSOT-23, 6 PIN
Reach Compliance Code：unknown风险等级：5.84
Is Samacsys：N其他特性：ALSO OPERATES AT 3.3V SUPPLY
JESD-30 代码：R-PDSO-G6长度：2.9 mm
端子数量：6最高工作温度：85 °C
最低工作温度：-40 °C最大输出时钟频率：120 MHz
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
主时钟/晶体标称频率：120 MHz认证状态：Not Qualified
座面最大高度：1 mm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：INDUSTRIAL端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
宽度：1.6 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, OTHER
Base Number Matches：1

ASM3I2598AF-06-OR 数据手册

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October 2006  
rev 0.3  
ASM3P2598A  
Low Power Peak EMI Reducing Solution  
Features  
The ASM3P2598A uses the most efficient and optimized  
modulation profile approved by the FCC and is  
implemented by using a proprietary all digital method.  
•
Generates a 1X low EMI optimized clock signal at the  
output.  
•
•
•
•
•
Integrated loop filter components.  
Operates with a 3.3 / 2.5V Supply.  
Operating current less than 5mA.  
Low power CMOS design.  
Input frequency range  
60MHz to 120MHz for 2.5V  
60MHz to 120MHz for 3.3V  
Frequency deviation: ±1.5(Typ) @85MHz Output  
frequency.  
The ASM3P2598A 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’.  
•
•
Available in 6-pin TSOT-23 Package.  
Applications  
Product Description  
The ASM3P2598A is targeted towards all portable  
devices with very low power requirements like MP3  
players,MFP, LCD Panel Module and digital still cameras.  
The ASM3P2598A is  
a versatile spread spectrum  
frequency modulator designed specifically for a wide  
range of clock frequencies. The ASM3P2598A reduces  
electromagnetic interference (EMI) at the clock source,  
allowing system wide reduction of EMI of all clock  
dependent signals. The ASM3P2598A allows significant  
system cost savings by reducing the number of circuit  
board layers ferrite beads, shielding that are traditionally  
required to pass EMI regulations.  
Key Specifications  
Description  
Supply voltages  
Cycle-to-Cycle Jitter  
Output Duty Cycle  
Specification  
VDD = 3.3V / 2.5V  
360pS (Typ)  
45/55%  
Modulation Rate Equation  
FIN/2560  
±1.5% (Typ) @85MHz  
Frequency Deviation  
Output  
SSON  
Block Diagram  
VDD  
PLL  
Modulation  
CLKIN  
Frequency  
Divider  
Output  
Divider  
Phase  
Loop  
Filter  
VCO  
Detector  
Feedback  
Divider  
ModOUT  
VSS  
PulseCore Semiconductor Corporation  
1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018  
www.pulsecoresemi.com  
Notice: The information in this document is subject to change without notice.  
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