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ASM3P2274AG-06-OR

更新时间： 2024-11-11 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倍频器
页数	文件大小	规格书
8页	152K
描述
Low Power 4X Multiplier EMI Reduction IC

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中文翻译

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技术参数
数据手册

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ASM3P2274AG-06-OR 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	GREEN, TSOT-23, 6 PIN	Reach Compliance Code：	unknown
风险等级：	5.79	Is Samacsys：	N
其他特性：	ALSO OPERATES AT 3.3V SUPPLY	JESD-30 代码：	R-PDSO-G6
JESD-609代码：	e3	长度：	2.9 mm
端子数量：	6	最高工作温度：	70 °C
最低工作温度：		最大输出时钟频率：	120 MHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	主时钟/晶体标称频率：	30 MHz
认证状态：	Not Qualified	座面最大高度：	1 mm
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：	COMMERCIAL
端子面层：	TIN	端子形式：	GULL WING
端子节距：	0.95 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	1.6 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER	Base Number Matches：	1

ASM3P2274AG-06-OR 数据手册

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November 2006

rev 1.1

ASM3P2274A

Low Power 4X Multiplier EMI Reduction IC

Features

The ASM3P2274A uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented by using a proprietary all digital method.

•

Generates a 4X EMI optimized clock signal at the

output.

•

Integrated loop filter components.

Operates with a 3.3 / 2.5V Supply.

Low power CMOS design.

Input frequency range: 12MHz to 30MHz for 2.5V.

: 12MHz to 30MHz for 3.3V.

Frequency deviation: -1.5% (Typ) @66MHz

Output Frequency.

Available in 6-pin TSOT-23 Package.

The ASM3P2274A 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’.

•

Product Description

Applications

The ASM3P2274 is

a versatile Spread Spectrum

The ASM3P2274A is targeted towards all portable

devices with very low power requirements like MP3

players,MFP, LCD Panel Module and digital still cameras.

Frequency Modulator designed specifically for a wide

range of clock frequencies. It provides a 4x Spread

Spectrum Modulated output from an input clock source.

The ASM3P2274A reduces electromagnetic interference

(EMI) at the clock source, allowing system wide reduction

of EMI of all clock dependent signals. The ASM3P2274A

allows significant system cost savings by reducing the

number of circuit board layers ferrite beads, shielding

that are traditionally required to pass EMI regulations.

Key Specifications

Description

Specification

VDD = 3.3V / 2.5V

360pS (Typ)

45/55%

Supply voltages

Cycle-to-Cycle Jitter

Output Duty Cycle

Modulation Rate Equation

F_IN/640

-1.5% (Typ) @ 66MHz

Frequency Deviation

Output

Block Diagram

VDD

PLL

Modulation

XIN/CLKIN

XOUT

Crystal

Frequency

Divider

Oscillator

Output

Divider

Phase

Loop

Filter

VCO

Detector

Feedback

Divider

ModOUT

VSS

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.

12 3 4 5 6 7 8

中文翻译

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与ASM3P2274AG-06-OR相关器件

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ASM3P2474AF-08SR	ALSC	获取价格	Low Power Peak EMI Reducing Solution
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