Datasheet > ASM3P2590AF-06-OR

ASM3P2590AF-06-OR

更新时间： 2024-11-11 06:38:11

品牌	Logo	应用领域
PULSECORE		/
页数	文件大小	规格书
7页	297K
描述
Low Power Peak EMI Reducing Solution

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September 2006

rev 0.4

ASM3P2590A

Low Power Peak EMI Reducing Solution

Features

The ASM3P2590A uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented by using a proprietary all digital method.

•

Generates a 1X low EMI optimized clock signal at the

output.

•

Integrated loop filter components.

Operates with a 3.3 / 2.5V Supply.

Operating current less than 5mA.

Low power CMOS design.

Input frequency range

60MHz to 120MHz for 2.5V

60MHz to 120MHz for 3.3V

Frequency deviation: ±0.75% (Typ) @85MHz Output

frequency.

The ASM3P2590A 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’.

•

Available in 6-pin TSOT-23 Package.

Applications

Product Description

The ASM3P2590A is targeted towards all portable

devices with very low power requirements like MP3

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

The ASM3P2590A is

a versatile spread spectrum

frequency modulator designed specifically for a wide

range of clock frequencies. The ASM3P2590A reduces

electromagnetic interference (EMI) at the clock source,

allowing system wide reduction of EMI of all clock

dependent signals. The ASM3P2590A 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

Specification

VDD = 3.3V / 2.5V

360pS (Typ)

45/55%

Modulation Rate Equation

F_IN/2560

±0.75% (Typ) @85MHz

Frequency Deviation

Output

SSON

Block Diagram

VDD

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

中文翻译

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与ASM3P2590AF-06-OR相关器件

型号	品牌	获取价格	描述	数据表
ASM3P2590AG-06-OR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2598A	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2598A	ONSEMI	获取价格	Peak EMI Reducing Solution
ASM3P2598AF-06OR	ONSEMI	获取价格	Peak EMI Reducing Solution
ASM3P2598AF-06-OR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2598AG-06-OR	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2669A	ONSEMI	获取价格	Peak EMI Reducing Solution
ASM3P2669A	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2669A	ALSC	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2669A-06OR	ALSC	获取价格	Low Power Peak EMI Reducing Solution

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