EEWORLDEEWORLDEEWORLD

Part Number

Search

3EQHM572-D-40.000N-D2.7

Description
CMOS Output Clock Oscillator, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN
CategoryPassive components    oscillator   
File Size270KB,3 Pages
ManufacturerEuroquartz
Websitehttp://www.euroquartz.co.uk/
Environmental Compliance
Download Datasheet Parametric View All

3EQHM572-D-40.000N-D2.7 Overview

CMOS Output Clock Oscillator, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN

3EQHM572-D-40.000N-D2.7 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerEuroquartz
Reach Compliance Codecompliant
JESD-609 codee4
Oscillator typeCMOS
Terminal surfaceGold (Au) - with Nickel (Ni) barrier
EURO
QUARTZ
Provides from 8dB to 15dB reduction in system EMI
‘Drop-in’ replacement for standard clocks
Choice of modulation rate and spread
Miniature package: 7.0 mm x 5.0 mm x 1.4mm
N Group parts provide a low cost EMI reduction solution
3EQHM572N Low EMI Oscillator
Page 1 of 3
7 x 5 x 1.4mm SMD - Group 'N'
In electrical systems the principal cause of electro-
magnetic interference (EMI) is the system clock
oscillator. Traditional methods of 'patching-up' systems
with too high a level of EMI is to use ferrite beads,
filters, ground planes, metal shielding and similar costly
methods, However, the most efficient and economic
method to reduce EMI is to reduce it at source: replace
the system clock ocillator with a low EMI clock oscillator.
Compared with conventional clock oscillators, Spread
Spectrum (Dithered) Oscillators can reduce EMI by as
much as 16dB. The part is a 'drop-in' replacement for a
standard clock oscillator hence there is no requirement
to re-design existing PCBs.
DESCRIPTION
EQHM572 series low EMI oscillators can reduce system EMI from 8dB
to 16dB. The oscillators are a ‘drop-in’ replacement for standard
oscillators. EMI reduction is achieved by the use of Spread Spectrum
Technology whereby the mode energy is spread over a wider
bandwidth. The modulation carrier frequency, operating in the kHz
region, makes the process transparent to the oscillator frequency.
There is a choice of modulation rates and spread to suit application
requirements.
SPREAD SPECTRUM TECHNOLOGY
Unlike a conventional clock oscillator, in a Spread Spectrum Clock
Oscillator the mode energy is spread over a wider bandwidth. This is
achieved by the frequency modulation technique. The controlled
modulation process may be applied to the 'down' side of the nominal
frequency (known as
DOWN SPREAD,)
or spread equally either side
of nominal (CENTRE
SPREAD).
Down Spread is preferred if over-
clocking would cause a problem to the system.
APPLICATIONS
Printers, Multiple Function Printers (MPCs)
Digital Copiers; PDAs
Networking: LAN/WAN; Routers
Storage Systems (CD-ROM, VCD, DVD, HDD)
Scanners; Modems; Projectors
Embedded Systems
Musical Instruments
Automotive: GPS car navigation systems
LCD PC Monitors; LSD TVs
ADSL; PCMCIA
Still Digital Cameras (SDCs)
Medical devices
MODULATION TYPES - EXAMPLES
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
Eliminating Software Failures with MSP432
Debugging large software programs is always a challenging task; often, it is difficult to know where to start! The MSP432 low-power and high-performance microcontrollers (MCUs) provide an advanced deb...
fish001 Microcontroller MCU
Does anyone have any stories about face issues?
I have found many strange face-saving phenomena. They are not that good or they are good but they often make mistakes. However, they pretend to be great or cover up their mistakes. They keep silent ab...
wangfuchong Talking
Homemade high frequency transformer
I made a high-frequency transformer by myself. It was barely done. But it made a screaming sound after it was powered on. What's the reason? ? Please give me some advice on making a high-frequency tra...
天剑002 Analogue and Mixed Signal
Why does the baseboard of the cortex-A9 core board need to use an STM8 microcontroller? Is it for loading programs? Thank you
Why does the baseboard of the cortex-A9 core board need to use an STM8 microcontroller? Is it for loading programs? Thank you...
心的方向001 stm32/stm8
Several questions about STM32L151
1. Where can I get the STM32L151 chip?2. Can the internal clock of STM32L151 support USB?3. Can IAR5.3 +jilink 7 support STM32L151?Thank you!...
gd88zjl stm32/stm8
A simple DA application
A simple DAC program that outputs a sine wave....
cxyeva stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 776  596  5  925  2460  16  13  1  19  50 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号