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ASM3P2814BF-08TT PDF预览

ASM3P2814BF-08TT

更新时间： 2024-01-02 15:30:56
品牌 Logo 应用领域
ALSC 时钟ISM频段光电二极管外围集成电路晶体
页数 文件大小 规格书
10页 168K
描述
Clock Generator, 120MHz, CMOS, PDSO8, TSSOP-8

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ASM3P2814BF-08TT 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：5.75JESD-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：160 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 mm
uPs/uCs/外围集成电路类型：CLOCK GENERATOR, OTHERBase Number Matches：1

ASM3P2814BF-08TT 数据手册

 浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第2页浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第3页浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第4页浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第5页浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第6页浏览型号ASM3P2814BF-08TT的Datasheet PDF文件第7页 
December 2003  
ASM3P2811A/B  
ASM3P2812A/B  
ASM3P2814A/B  
rev 1.1  
Low Power EMI Reduction IC  
Features  
deviation range from ±0.625% to –3.50%.  
ƒ
ƒ
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FCC approved method of EMI attenuation.  
Provides up to 15dB EMI reduction.  
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.  
Generates a 1X, 2X and 4X low EMI spread  
spectrum clock of the input frequency.  
o
o
o
1X: ASM3P2811A/B  
2X: ASM3P2812A/B  
4X: ASM3P2814A/B  
ƒ
Optimized for input frequency range from 10MHz  
to 40 MHz.  
o
o
o
ASM3P2811A/B: 10 to 40MHz  
ASM3P2812A/B: 10 to 40MHz  
ASM3P2814A/B: 10 to 40MHz  
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’.  
ƒ
ƒ
ƒ
Internal loop filter minimizes external components  
and board space.  
Selectable spread options: Down Spread and  
Center Spread.  
8 spread frequency deviation selections:  
o
±0.625% to –3.5%  
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ƒ
ƒ
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Low inherent cycle-to-cycle jitter.  
The ASM3P28XX uses the most efficient and optimized  
modulation profile approved by the FCC and is  
implemented in a proprietary all-digital method.  
3.3V operating voltage range.  
CMOS/TTL compatible inputs and outputs.  
Pinout compatible with Cypress CY25811,  
CY25812 and CY25814.  
ƒ
Products are available for commercial and  
industrial temperature range.  
Applications  
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.  
ƒ
Available in 8-pin SOIC and TSSOP.  
Product Description  
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 Output Frequency Deviation and  
Spread Option Selection Table). These combinations  
include Down and Center Spread and percentage  
Alliance Semiconductor  
2575, Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com  
Notice: The information in this document is subject to change without notice.  
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