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ASM3I2869AF-08TT

产品描述Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8
产品类别嵌入式处理器和控制器    微控制器和处理器   
文件大小359KB,共12页
制造商PulseCore Semiconductor Corporation
标准
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ASM3I2869AF-08TT概述

Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8

ASM3I2869AF-08TT规格参数

参数名称属性值
是否Rohs认证符合
包装说明ROHS COMPLIANT, TSSOP-8
Reach Compliance Codeunknown
其他特性ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ
JESD-30 代码R-PDSO-G8
长度4.4 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13 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13 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2.7 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, OTHER
Base Number Matches1

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ASM3P2869A
Low Power Peak EMI
Reducing Solution
Features
Generates an EMI optimized clock signal at the
output
Integrated loop filter components
Operates with a 3.3V / 2.5V supply
Operating current less than 4mA
Low power CMOS design
Input frequency range: 6MHz to 12MHz for 2.5V
6MHz to 13MHz for 3.3V
Generates a 1X low EMI spread spectrum clock of
the input frequency
Frequency deviation: ±1% (Typ) @ 10MHz
Available in 6-pin TSOT-23, 8-pin SOIC and 8-pin
TSSOP packages
The ASM3P2869A uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented by using a proprietary all digital method.
The ASM3P2869A 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.‟
Applications
The ASM3P2869A is targeted towards all portable
devices with very low power requirements like MP3
players, Notebooks and digital still cameras.
Product Description
The ASM3P2869A is a versatile spread spectrum
frequency modulator designed specifically for a wide
range of clock frequencies. The ASM3P2869A reduces
electromagnetic interference (EMI) at the clock source,
allowing system wide reduction of EMI of all clock
dependent signals. The ASM3P2869A 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.
Key Specifications
Description
Supply voltages
Cycle-to-Cycle Jitter
Output Duty Cycle
Modulation Rate Equation
Frequency Deviation
Specification
VDD = 2.5V / 3.3V
200pS (Max)
45/55%
F
IN
/256
±1% (Typ) @ 10MHz
Block Diagram
VDD
XIN
XOUT
Crystal
Oscillator
Frequency
Divider
Feedback
Divider
REFOUT
Modulation
PLL
Phase
Detector
Loop
Filter
VCO
Output
Divider
ModOUT
VSS
©2010 SCILLC. All rights reserved.
JANUARY 2010 – Rev. 2
Publication Order Number:
ASM3P2869/D
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