Datasheet > 逻辑 > 时钟驱动器> ASM3I2669AF-08ST

ASM3I2669AF-08ST

更新时间： 2024-02-03 10:54:52

品牌	Logo	应用领域
PULSECORE		时钟驱动器逻辑集成电路光电二极管
页数	文件大小	规格书
11页	179K
描述
Low Power Peak EMI Reducing Solution

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技术参数
数据手册

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ASM3I2669AF-08ST 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	ROHS COMPLIANT, TSSOP-8	Reach Compliance Code：	unknown
风险等级：	5.65	Is Samacsys：	N
其他特性：	ALSO OPERATES AT 2.5 V SUPPLY	系列：	3I
输入调节：	STANDARD	JESD-30 代码：	R-PDSO-G8
长度：	4.4 mm	逻辑集成电路类型：	PLL BASED CLOCK DRIVER
功能数量：	1	反相输出次数：
端子数量：	8	实输出次数：	1
最高工作温度：	85 °C	最低工作温度：	-40 °C
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	认证状态：	Not Qualified
座面最大高度：	1.1 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	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
最小 fmax：	13 MHz	Base Number Matches：	1

ASM3I2669AF-08ST 数据手册

January 2007

rev 1.7

ASM3P2669A

Low Power Peak EMI Reducing Solution

Features

The ASM3P2669A uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented by using a proprietary all digital method.

•

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% @ 10MHz

Available in 6-pin TSOT-23, 8-pin SOIC and 8-pin

TSSOP packages.

The ASM3P2669A 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 ASM3P2669A is targeted towards all portable

devices with very low power requirements like MP3

players and digital still cameras.

Product Description

The ASM3P2669A is

a versatile spread spectrum

frequency modulator designed specifically for a wide

range of clock frequencies. The ASM3P2669A reduces

electromagnetic interference (EMI) at the clock source,

allowing system wide reduction of EMI of all clock

dependent signals. The ASM3P2669A 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

Supply voltages

Cycle-to-Cycle Jitter

Output Duty Cycle

Modulation Rate Equation

Frequency Deviation

Specification

VDD = 3.3V /2.5V

200pS ( Max)

45/55%

F_IN/256

±1% @ 10MHz

VDD

Block Diagram

PLL

Modulation

CLKIN

Frequency

Divider

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...11

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与ASM3I2669AF-08ST相关器件

型号	品牌	描述	获取价格	数据表
ASM3I2669AF-08TR	PULSECORE	Low Power Peak EMI Reducing Solution	获取价格
ASM3I2669AF-08TR	ALSC	Low Power Peak EMI Reducing Solution	获取价格
ASM3I2669AF-08TT	ALSC	Low Power Peak EMI Reducing Solution	获取价格
ASM3I2669AF-08TT	PULSECORE	Low Power Peak EMI Reducing Solution	获取价格
ASM3I2669AG-06OR	PULSECORE	Low Power Peak EMI Reducing Solution	获取价格
ASM3I2669AG-06OR	ALSC	Low Power Peak EMI Reducing Solution	获取价格

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