Datasheet > ASM3I2760A-08TT

ASM3I2760A-08TT

更新时间： 2024-11-18 20:29:11

品牌	Logo	应用领域
PULSECORE		时钟光电二极管外围集成电路晶体
页数	文件大小	规格书
12页	179K
描述
Clock Generator, 13MHz, CMOS, PDSO8, TSSOP-8

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ASM3I2760A-08TT 技术参数

生命周期：	Obsolete	包装说明：	TSSOP-8
Reach Compliance Code：	unknown	风险等级：	5.76
Is Samacsys：	N	其他特性：	ALSO OPERATES AT 2.5V SUPPLY
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
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
宽度：	3 mm	uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER
Base Number Matches：	1

ASM3I2760A-08TT 数据手册

September 2005

rev 1.8

ASM3P2760A

Low Power Peak EMI Reducing Solution

Features

The ASM3P2760A 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: ±0.65% @ 8MHz

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

8 pin TSSOP Packages.

The ASM3P2760A 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 ASM3P2760A is targeted towards all portable

devices with very low power requirements like MP3

players and digital still cameras.

Product Description

The ASM3P2760A is

a versatile spread spectrum

frequency modulator designed specifically for a wide

range of clock frequencies. The ASM3P2760A reduces

electromagnetic interference (EMI) at the clock source,

allowing system wide reduction of EMI of all clock

dependent signals. The ASM3P2760A 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

±0.65% @ 8MHz

Block Diagram

VDD

PLL

Modulation

XIN

Crystal

Frequency

Divider

Oscillator

Output

Divider

Phase

Loop

XOUT

VCO

Detector

Filter

Feedback

Divider

ModOUT

VSS

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.

12 3 4 5 6 7...12

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与ASM3I2760A-08TT相关器件

型号	品牌	获取价格	描述	数据表
ASM3I2760AF-06OR	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-06OR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08SR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08SR	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08ST	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08ST	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08TR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08TR	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08TT	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3I2760AF-08TT	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution

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