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ASM3I2111BF-08ST PDF预览

ASM3I2111BF-08ST

更新时间: 2024-02-18 11:05:59
品牌 Logo 应用领域
PULSECORE 晶体外围集成电路光电二极管时钟
页数 文件大小 规格书
8页 174K
描述
Peak EMI Reducing Solution

ASM3I2111BF-08ST 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:ROHS COMPLIANT, SOIC-8Reach Compliance Code:unknown
风险等级:5.77JESD-30 代码:R-PDSO-G8
长度:4.9 mm端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:66.6 MHz封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
主时钟/晶体标称频率:25 MHz认证状态:Not Qualified
座面最大高度:1.75 mm最大供电电压:3.6 V
最小供电电压:3 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.91 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

ASM3I2111BF-08ST 数据手册

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February 2007  
rev 0.2  
ASM3P2111B  
Peak EMI Reducing Solution  
Features  
allows significant system cost savings by reducing the  
number of circuit board layers and shielding that are  
required to pass EMI regulations. The ASM3P2111B  
modulates the output of PLL in order to spread the  
bandwidth of a synthesized clock, thereby decreasing 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  
clock generators. Lowering EMI by increasing a signal’s  
bandwidth is called spread spectrum clock generation.  
Generates an EMI optimized clock at the output.  
Input frequency: 25MHz.  
Frequency outputs:  
60MHz (unmodulated)  
2 x 48MHz (unmodulated)  
66.6MHz (modulated): -1.7% down spread  
Modulation rate: 30KHz.  
Supply voltage range: 3.3V ± 0.3V.  
Available in 8-pin SOIC Package.  
Commercial and Industrial Temperature range.  
RoHS Compliant  
Applications  
ASM3P2111B is targeted towards EMI management for  
high speed digital applications such as PC peripheral  
devices, consumer electronics and embedded controller  
systems.  
Product Description  
The ASM3P2111B is  
a versatile spread spectrum  
frequency modulator that reduces electromagnetic  
interference (EMI) at the clock source. The ASM3P2111B  
Block Diagram  
V
DD  
60 MHz  
XIN /CLKIN  
XOUT  
Crystal  
PLL1  
48 MHz_1  
Oscillator  
48 MHz_2  
48 MHz_1  
PLL2  
66.6 MHz  
Modulated  
V
SS  
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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