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ASM3P2812BF-08TR

更新时间： 2024-11-21 06:38:11
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ISM频段
页数 文件大小 规格书
11页 152K
描述
Low Power EMI Reduction IC

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中文翻译

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ASM3P2812BF-08TR 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：ROHS COMPLIANT, TSSOP-8Reach Compliance Code：unknown
风险等级：5.75Is Samacsys：N
JESD-30 代码：R-PDSO-G8长度：4.4 mm
端子数量：8最高工作温度：70 °C
最低工作温度：最大输出时钟频率：80 MHz
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED主时钟/晶体标称频率：40 MHz
认证状态：Not Qualified座面最大高度：1.1 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：COMMERCIAL
端子形式：GULL WING端子节距：0.65 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 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, OTHER
Base Number Matches：1

ASM3P2812BF-08TR 数据手册

 浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第2页浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第3页浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第4页浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第5页浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第6页浏览型号ASM3P2812BF-08TR的Datasheet PDF文件第7页 
ASM3P2811A/B  
ASM3P2812A/B  
ASM3P2814A/B  
April 2008  
rev 1.6  
Low Power EMI Reduction IC  
Features  
and Center Spread, and percentage deviation range from  
±0.625% to -3.5%.  
•
•
•
FCC approved method of EMI attenuation  
Provides up to 15dB EMI reduction  
Generates a 1x, 2x and 4x low EMI spread  
spectrum clock of the input frequency  
• 1x: ASM3P2811A/B  
The ASM3P28XX reduces electromagnetic interference  
(EMI) at the clock source, allowing system wide reduction  
of EMI of down stream clock and data dependent  
signals. The ASM3P28XX allows significant system cost  
savings by reducing the number of circuit board layers,  
ferrite beads, shielding, and other passive components  
that are traditionally required to pass EMI regulations.  
• 2x: ASM3P2812A/B  
• 4x: ASM3P2814A/B  
•
•
•
•
Optimized for input frequency range from  
10MHz to 40 MHz  
Internal loop filter minimizes external  
components and board space  
Selectable spread options:  
The ASM3P28XX 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’.  
• Down Spread and Center Spread  
8 frequency deviation selections:  
• ±0.625% to -3.5%  
•
•
•
•
Low inherent Cycle-to-Cycle Jitter  
3.3V Operating Voltage  
CMOS/TTL compatible inputs and outputs.  
Pin-out compatible with Cypress CY25811,  
CY25812 and CY25814  
The ASM3P28XX uses the most efficient and optimized  
modulation profile approved by the FCC and is  
implemented in a proprietary all-digital method.  
•
•
Commercial and Industrial temperature range  
Available in 8-pin SOIC and TSSOP Packages  
Applications  
Product Description  
The ASM3P28XX is targeted towards EMI management  
for memory and LVDS interfaces in mobile graphic  
chipsets and high-speed digital applications such as PC  
peripheral devices, consumer electronics, and embedded  
controller systems.  
The ASM3P28XX devices are versatile spread spectrum  
frequency modulators designed specifically for a wide  
range of input clock frequencies from 10MHz to 40MHz.  
Refer Input / Output Frequency Range Selection Table.  
The ASM3P28XX can generate an EMI reduced clock  
from crystal, ceramic resonator, or system clock. The  
ASM3P28XX-A and the ASM3P28XX-B offer various  
combinations of spread options and percentage  
deviations. Refer Frequency Deviation and Spread  
Selection Table. These combinations include Down  
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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中文翻译

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