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ASM3I2870AF-08ST PDF预览

ASM3I2870AF-08ST

更新时间： 2024-11-24 20:15:11
品牌 Logo 应用领域
安森美 - ONSEMI 时钟光电二极管外围集成电路晶体
页数 文件大小 规格书
10页 122K
描述
OTHER CLOCK GENERATOR

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中文翻译

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ASM3I2870AF-08ST 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOIC-8
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.76Is Samacsys：N
其他特性：IT ALSO OPERATES WITH 3.3V NOM SUPPLYJESD-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：30 MHz封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
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：1.75 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：INDUSTRIAL端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
宽度：3.9 mmuPs/uCs/外围集成电路类型：CLOCK GENERATOR, OTHER
Base Number Matches：1

ASM3I2870AF-08ST 数据手册

 浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第2页浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第3页浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第4页浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第5页浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第6页浏览型号ASM3I2870AF-08ST的Datasheet PDF文件第7页 
ASM3P2870A  
Low Power Peak EMI  
Reducing Solution  
Description  
The ASM3P2870A is a versatile spread spectrum frequency  
modulator designed specifically for a wide range of clock frequencies.  
The ASM3P2870A reduces electromagnetic interference (EMI) at the  
clock source, allowing system wide reduction of EMI of all clock  
dependent signals. The ASM3P2870A 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.  
The ASM3P2870A uses the most efficient and optimized  
modulation profile approved by the FCC and is implemented by using  
a proprietary all digital method.  
http://onsemi.com  
TSOT−6  
O SUFFIX  
CASE 419AF  
TSSOP−8  
T SUFFIX  
CASE 948AL  
SOIC−8  
S SUFFIX  
CASE 751BD  
The ASM3P2870A 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.’  
PIN CONFIGURATIONS  
1
REFOUT  
V
SS  
ModOUT  
XOUT  
Applications  
V
XIN / CLKIN  
DD  
The ASM3P2870A is targeted towards all portable devices with  
very low power requirements like MP3 players and digital still  
cameras.  
6−Pin TSOT−23 Package  
(Top View)  
Features  
1
V
XIN / CLKIN  
XOUT  
DD  
• Generates an EMI Optimized Clock Signal at the Output  
• Integrated Loop Filter Components  
• Operates with a 3.3 V / 2.5 V Supply  
• Operating Current less than 4 mA  
NC  
ModOUT  
REFOUT  
NC  
V
SS  
• Low Power CMOS Design  
8−Pin SOIC and TSSOP Packages  
• Input Frequency Range:  
13 MHz to 30 MHz for 2.5 V  
13 MHz to 30 MHz for 3.3 V  
(Top View)  
• Generates a 1X Low EMI Spread Spectrum Clock of the Input  
Frequency  
KEY SPECIFICATIONS  
Description  
Supply Voltages  
Specification  
= 3.3 V / 2.5 V  
• Frequency Deviation: 0.75% (Typ) @ 22 MHz Input Frequency  
V
DD  
• Available in 6−pin TSOT−23, 8−pin SOIC and 8−pin TSSOP  
Cycle−to−Cycle Jitter  
Output Duty Cycle  
200 pS (Max)  
45/55%  
Packages  
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS  
Modulation Rate Equation  
Frequency Deviation  
F /640  
IN  
Compliant  
0.75% (Typ) @  
22 MHz  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 10 of this data sheet.  
© Semiconductor Components Industries, LLC, 2011  
1
Publication Order Number:  
August, 2011 − Rev. 3  
ASM3P2870A/D  
1234567...10

中文翻译

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