ASM3P2814BG-08SR

更新时间： 2024-11-21 06:38:11

品牌	Logo	应用领域
PULSECORE		晶体外围集成电路光电二极管时钟
页数	文件大小	规格书
11页	445K
描述
Low Power EMI Reduction IC

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ASM3P2814BG-08SR 数据手册

ASM3P2811A/B

ASM3P2812A/B

ASM3P2814A/B

November 2006

rev 1.5

Low Power EMI Reduction IC

Features

deviation range from ±0.625% to –3.50%.

•

FCC approved method of EMI attenuation.

Provides up to 15dB EMI reduction.

Generates a 1X, 2X and 4X low EMI spread

spectrum clock of the input frequency.

• 1X: ASM3P2811A/B

The ASM3P28XX reduces electromagnetic interference

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

of EMI of down stream clock and data dependent

signals. The ASM3P28XX allows significant system cost

savings by reducing the number of circuit board layers,

ferrite beads, shielding, and other passive components

that are traditionally required to pass EMI regulations.

• 2X: ASM3P2812A/B

• 4X: ASM3P2814A/B

•

Optimized for input frequency range from

10MHz to 40 MHz.

Internal loop filter minimizes external

components and board space.

Selectable spread options: Down Spread and

Center Spread.

The ASM3P28XX 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’.

8 spread frequency deviation selections:

• ±0.625% to –3.5%

•

Low inherent cycle-to-cycle jitter.

3.3V Operating Voltage.

CMOS/TTL compatible inputs and outputs.

Pin-out compatible with Cypress CY25811,

CY25812 and CY25814.

The ASM3P28XX uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented in a proprietary all-digital method.

•

Products are available in Commercial and

Industrial temperature range.

Available in 8-pin SOIC and TSSOP Packages.

Applications

Product Description

The ASM3P28XX 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.

The ASM3P28XX devices are versatile spread spectrum

frequency modulators designed specifically for a wide

range of input clock frequencies from 10MHz to 40MHz.

(Refer Input/Output Frequency Range Selection Table).

The ASM3P28XX can generate an EMI reduced clock

from crystal, ceramic resonator, or system clock. The

ASM3P28XX-A and the ASM3P28XX-B offer various

combinations of spread options and percentage

deviations (Refer Output Frequency Deviation and

Spread Option Selection Table). These combinations

include Down and Center Spread and percentage

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.

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与ASM3P2814BG-08SR相关器件

型号	品牌	获取价格	描述	数据表
ASM3P2814BG-08ST	PULSECORE	获取价格	Low Power EMI Reduction IC
ASM3P2814BG-08TR	PULSECORE	获取价格	Low Power EMI Reduction IC
ASM3P2814BG-08TT	PULSECORE	获取价格	Low Power EMI Reduction IC
ASM3P2821B	ALSC	获取价格	Low Power EMI Reduction IC
ASM3P2853A	ALSC	获取价格	Peak EMI Reducing Solution
ASM3P2853A	ONSEMI	获取价格	Peak EMI Reducing Solution
ASM3P2853A	PULSECORE	获取价格	Peak EMI Reducing Solution
ASM3P2853AF-08SR	PULSECORE	获取价格	Peak EMI Reducing Solution
ASM3P2853AF-08-SR	ALSC	获取价格	Peak EMI Reducing Solution
ASM3P2853AF-08ST	PULSECORE	获取价格	Peak EMI Reducing Solution

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