Datasheet > ASM3P2274

ASM3P2274

更新时间： 2024-11-12 01:15:59

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
7页	99K
描述
Multiplier EMI Reduction IC

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中文翻译

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ASM3P2274 数据手册

ASM3P2274A

4x Multiplier EMI

Reduction IC

Product Description

The ASM3P2274 is a versatile Spread Spectrum Frequency

Modulator designed specifically for a wide range of clock frequencies.

It provides a 4x Spread Spectrum Modulated output from an input

clock source.

www.onsemi.com

The ASM3P2274A reduces electromagnetic interference (EMI) at

the clock source, allowing system wide reduction of EMI of all clock

dependent signals. The ASM3P2274A allows significant system cost

savings by reducing the number of circuit board layers, ferrite beads

and shielding that are traditionally required to pass EMI regulations.

The ASM3P2274A uses the most efficient and optimized

modulation profile approved by the FCC and is implemented by using

a proprietary all digital method.

The ASM3P2274A 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.’

TSOP−6

CASE 318G

PIN CONNECTION

VSS

ASM3P2274A

XOUT

ModOUT

VDD

XIN/CLKIN

MARKING DIAGRAM

Features

• Generates a 4x EMI Optimized Clock Signal at the Output

• Integrated Loop Filter Components

• Operates with a 2.5/3.3 V Supply

• CMOS Design

Z4LAYWG

• Input Frequency Range:

♦ 12 MHz to 30 MHz for 2.5 V

♦ 12 MHz to 30 MHz for 3.3 V

Z4L = Specific Device Code

= Assembly Location

= Year

= Work Week

• Frequency Deviation: −1.5% (Typ) @ 66 MHz Output Frequency

• Available in TSOP−6 Package

• This Device is Pb-Free and is RoHS Compliant

= Pb-Free Package

(Note: Microdot may be in either location)

Applications

The ASM3P2274A is targeted towards all portable devices like

MP3 players, MFP, LCD Panel Module and digital still cameras.

ORDERING INFORMATION

See detailed ordering and shipping information on page 6 of

this data sheet.

Table 1. KEY SPECIFICATIONS

Description

Supply Voltages

Specification

= 2.5/3.3 V

Cycle-to-Cycle Jitter

Output Duty Cycle

360 ps (Typ)

45/55%

Modulation Rate Equation

Frequency Deviation

F /640

−1.5% (Typ) @ 66 MHz Output

Publication Order Number:

July, 2015 − Rev. 3

ASM3P2274/D

12 3 4 5 6 7

中文翻译

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与ASM3P2274相关器件

型号	品牌	获取价格	描述	数据表
ASM3P2274_15	ONSEMI	获取价格	Multiplier EMI Reduction IC
ASM3P2274A	ONSEMI	获取价格	4X Multiplier EMI Reduction IC
ASM3P2274A	PULSECORE	获取价格	Low Power 4X Multiplier EMI Reduction IC
ASM3P2274A-06-OR	PULSECORE	获取价格	Clock Generator, 120MHz, CMOS, PDSO6, TSOT-23, 6 PIN
ASM3P2274AF-06OR	ONSEMI	获取价格	4X Multiplier EMI Reduction IC
ASM3P2274AF-06-OR	PULSECORE	获取价格	Clock Generator, 120MHz, CMOS, PDSO6, ROHS COMPLIANT, TSOT-23, 6 PIN
ASM3P2274AG-06-OR	PULSECORE	获取价格	Low Power 4X Multiplier EMI Reduction IC
ASM3P2474A	ONSEMI	获取价格	Peak EMI Reducing Solution
ASM3P2474A	PULSECORE	获取价格	Low Power Peak EMI Reducing Solution
ASM3P2474A	ALSC	获取价格	Low Power Peak EMI Reducing Solution

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