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P2184DF-08-ST

更新时间： 2024-11-11 05:58:51

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
页数	文件大小	规格书
9页	175K
描述
Peak Reducing EMI Solution

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技术参数
数据手册

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P2184DF-08-ST 技术参数

生命周期：	Obsolete	包装说明：	ROHS COMPLIANT, SOIC-8
Reach Compliance Code：	unknown	风险等级：	5.82
Is Samacsys：	N	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
最大输出时钟频率：	40 MHz	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	主时钟/晶体标称频率：	40 MHz
认证状态：	Not Qualified	座面最大高度：	1.75 mm
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	3.91 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER	Base Number Matches：	1

P2184DF-08-ST 数据手册

November 2006

rev 1.1

P2180 / 81 / 82 / 83 / 84

Peak Reducing EMI Solution

Features

•

FCC approved method of EMI attenuation.

•

Eight spread % selections:

± 0.625% to -3.5%.

Provides up to 15dB EMI reduction.

Generates a 1X low EMI spread spectrum clock

from the input frequency.

•

3.3V operating voltage.

CMOS/TTL compatible inputs and outputs.

Low-power CMOS design.

Supports notebook VGA and other LCD timing

controller applications.

Drop-in replacement to Cypress W180/1.

Products are available for industrial temperature

range.

•

Optimized for frequency range:

•

P2180 / 84: 20MHz to 40MHz

P2181: 60MHz to 160MHz

P2182 / 83: 10MHz to 20MHz

•

Internal

loop

filter

minimizes

external

components and board space.

Selectable spread options: Down Spread and

Center Spread.

•

Available in 8-pin SOIC and TSSOP packages.

Low inherent cycle-to-cycle jitter.

Product Description

The P2180/81X modulates the output of a single

PLL in order to “spread” the bandwidth of a

synthesized clock, thereby decreasing 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 clock generators. Lowering EMI by

increasing a signal’s bandwidth is called spread

spectrum clock generation.

The P2180/81X is a versatile spread spectrum

frequency modulator designed specifically for a

wide range of clock frequencies from 20MHz to

40MHz and 60MHz to 160MHz (Refer Input

Frequency and Modulation Rate Table.) The

P2180/81X can generate an EMI reduced clock

form an OSC or a system generated clock. The

P2180/81A

P2180/81D

offer

various

combinations of spread options and percentage

deviations. (Refer Spread Deviation Selections

Table.) These combinations include Down and

Center Spread and percentage deviation range

from ± 0.625% to –3.50%.

The P2180/81X uses the most efficient and

optimized modulation profile approved by the FCC

and is implemented by using a proprietary all-digital

method.

Applications

The

P2180/81X

reduces

electromagnetic

interference (EMI) at the clock source, allowing

system wide reduction of EMI of down stream clock

and data dependent signals. The P2180/81X allows

significant system cost savings by reducing the

number of circuit board layers and shielding that

are traditionally required to pass EMI regulations.

The P2180/81X is targeted towards EMI

management for memory and LVDS interfaces in

mobile graphic chipsets and high-speed digital

applications such as PC peripheral devices,

consumer electronics, and embedded controller

systems.

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...9

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与P2184DF-08-ST相关器件

型号	品牌	获取价格	描述	数据表
P2184DF-08-TR	PULSECORE	获取价格	Peak Reducing EMI Solution
P2184DF-08-TT	PULSECORE	获取价格	Peak Reducing EMI Solution
P2184DG-08-SR	PULSECORE	获取价格	Peak Reducing EMI Solution
P2184DG-08-ST	PULSECORE	获取价格	Peak Reducing EMI Solution
P2184DG-08-TR	PULSECORE	获取价格	Peak Reducing EMI Solution
P2184DG-08-TT	PULSECORE	获取价格	Peak Reducing EMI Solution
P2186-25	INTEL	获取价格	Standard SRAM, 8KX8, 250ns, NMOS, PDIP28, PLASTIC, DIP-28
P2186-30	INTEL	获取价格	Standard SRAM, 8KX8, 300ns, NMOS, PDIP28, PLASTIC, DIP-28
P2186-35	INTEL	获取价格	Standard SRAM, 8KX8, 350ns, NMOS, PDIP28, PLASTIC, DIP-28
P2187A-25	INTEL	获取价格	EDO DRAM, 8KX8, 250ns, NMOS, PDIP28, PLASTIC, DIP-28

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