EEWORLDEEWORLDEEWORLD

Part Number

Search

3HM572-ET-5.000R-C0.5

Description
Oscillator
CategoryPassive components    oscillator   
File Size618KB,5 Pages
ManufacturerMercury
Websitehttp://www.mercuryunited.com
Download Datasheet Parametric View All

3HM572-ET-5.000R-C0.5 Overview

Oscillator

3HM572-ET-5.000R-C0.5 Parametric

Parameter NameAttribute value
MakerMercury
Reach Compliance Codecompliant
Base Number Matches1
EMI Reduction Spread Spectrum Clock Oscillators
3HM572 Series Group “R”
The most efficient way to reduce EMI (Electromagnetic Interference) is to reduce it from its
principle source – the clock oscillator. Mercury 3HM572, an integrated clock module
composed of a spread spectrum clock and a quartz crystal, reduces EMI by 9 dB or more
while providing the clock speed needed for the system. It is a drop-in replacement for
standard 5x7 mm non-SSC clocks, no need to change the board or the solder pad layout.
The 3HM572 series (1.4 mm height) replaces the 3HM57 series (1.8 mm height). They are
identical products, with the only difference being the package heights. The 3HM57 is obsolete.
Please refer to Mercury
PCN-111004 “Change HM57 to HM572” .
MERCURY
Since 1973
Applications:
Printers; Multiple function printers (MPCs)
Digital copiers; PDAs
Networking; LAN / WAN; Routers
Storage systems
(CD-ROM,
VCD, DVD & HDD)
Scanner; Modems; Projectors
Hand-held ID Readers
Embedded systems; Electrical Musical Instrument
Automotive; GPS Car Navigation Systems
LCD PC Monitors / LCD TVs
ADSL; PCMCIA
Still Digital Cameras (SDCs)
Medical Devices
Spread Spectrum Clock (SSC):
Unlike the conventional clock, the mode
energy of a spread spectrum clock is
spread (distributed) over a wider
bandwidth between two pre-defined
frequency boundaries by the
frequency
modulation
technique. The modulation
carrier frequency is in the KHz range
which makes the modulation process
transparent to the oscillator frequency.
This controlled modulation process can
be on all of one side of the nominal
frequency (down
spread),
which is
preferred if system over-clocking is a
concern, or 50% up and 50% down
(center
spread).
Modulation Types
DOWN or CENTER spread
Down spread “D”.
“D1” as an example
Center spread “C”.
“C0.5” as an example
Output amplitude (dB) vs frequency span (MHz)
dB
EMI reduction
Conventional
Clock
dB
EMI reduction
Conventional
Clock
Spread
spectrum
clock
dB
fo - (fo*1%)
fc
Frequency
dB
fo - (fo*0.5%)
fo=fc
fo + (fo*0.5%)
32.768 MHz non-SSC vs SSC at Center Spread 1.5%:
No modulation
-9.9 dB
Center spread
1.5% (C1.5)
-23.0 dB
13.1 dB
reduction
Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail:
sales-tw@mercury-crystal.com
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail:
sales-us@mercury-crystal.com
MERCURY
Page 1 of 5
Oct. 18, 2011 Rev. 0
MERCURY
www.mercury-crystal.com
Anti-interference design of digital circuit
In the design of electronic systems, in order to avoid detours and save time, the requirements of anti-interference should be fully considered and met, and anti-interference should be avoided after th...
zzzzer16 Analog electronics
RT-THREAD is an open source operating system suitable for DIY 8M memory single-chip graphics card
Website: [url]http://www.rt-thread.org[/url] Kernel and components [b] Real-time thread operating system (RT-Thread) [/b] is an open source real-time operating system (license GPLv2) mainly developed ...
ljt8015 Embedded System
Experiment and summary of using MSP430 status register SR
When I was working on the LCD128128 driver, I saw a statement LCD_SDA = CY; I realized that CY in C51 is the carry flag. This way of writing is interesting and seems very concise. The original program...
Jacktang Microcontroller MCU
Create a GD32VF103 project using Visual Studio Code
[i=s]This post was last edited by littleshrimp on 2019-9-29 20:49[/i]Download Visual Studio Code from the following URL https://code.visualstudio.com/ After installation, open the software and click t...
littleshrimp GD32 MCU
[Popular Science] How does alternating current become direct current?
[Popular Science] How does alternating current become direct current?...
aigtekatdz Test/Measurement
XDS510 USB2.0, CCS2.2 connection f2812 error
I used CCS to connect to the DSP development board some time ago and there was no problem. But recently, I can't connect to the same development board. The error message is Can't Initialize target cpu...
benbeu Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 917  2390  1058  2563  621  19  49  22  52  13 
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