EEWORLDEEWORLDEEWORLD

Part Number

Search

ASM3P2879AF-08TT

Description
Low Power Peak Reducing EMI Solution
File Size134KB,11 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet View All

ASM3P2879AF-08TT Overview

Low Power Peak Reducing EMI Solution

ASM3P2879A
Low Power Peak Reducing
EMI Solution
Description
The ASM3P2879A is a versatile spread spectrum frequency
modulator designed specifically for a wide range of clock frequencies.
The ASM3P2879A reduces electromagnetic interference (EMI) at the
clock source, allowing system wide reduction of EMI of all clock
dependent signals. The ASM3P2879A 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 ASM3P2879A uses the most efficient and optimized
modulation profile approved by the FCC and is implemented by using
a proprietary all digital method.
The ASM3P2879A 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.’
Applications
http://onsemi.com
TSOT−6
O SUFFIX
CASE 419AF
TSSOP−8
T SUFFIX
CASE 948AL
SOIC−8
S SUFFIX
CASE 751BD
PIN CONFIGURATIONS
1
REFOUT
XOUT
XIN / CLKIN
VSS
ModOUT
VDD
The ASM3P2879A is targeted towards all portable devices with
very low power requirements like MP3 players, Notebooks and digital
still cameras.
Features
6−Pin TSOT−23 Package
(Top View)
1
XIN / CLKIN
XOUT
REFOUT
NC
VDD
NC
ModOUT
VSS
Generates an EMI Optimized Clock Signal at the Output
Integrated Loop Filter Components
Operates with a 3.3 V / 2.5 V Supply
Operating Current less than 4 mA
Low Power CMOS Design
Input Frequency Range:
13 MHz to 30 MHz for 2.5 V
13 MHz to 30 MHz for 3.3 V
Generates a 1X Low EMI Spread Spectrum Clock of the Input
Frequency
Frequency Deviation:
±1%
@ 24 MHz
Available in 6−pin TSOT−23, 8−pin SOIC and 8−pin TSSOP
Packages
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
8−Pin SOIC and TSSOP Packages
(Top View)
KEY SPECIFICATIONS
Description
Supply Voltages
Cycle−to−Cycle Jitter
Output Duty Cycle
Modulation Rate Equation
Frequency Deviation
Specification
VDD = 2.5 V / 3.3 V
200 pS (Max)
45/55%
F
IN
/640
±1%
@ 24 MHz
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
©
Semiconductor Components Industries, LLC, 2011
August, 2011
Rev. 3
1
Publication Order Number:
ASM3P2879A/D
How to realize full screen display of Form in wince
If you hide the title bar and task bar, and add a black cloth as the background, the whole screen will be black....
lurh0123 Embedded System
How to realize the automatic running of programs in USB flash disk? Similar to the USB shield of electronic banking?
What is the principle? I always thought it was a simple autorun, but after experimenting, I found that it didn't work. Does anyone know how the U-Shield is implemented? What is the principle?...
bagege Embedded System
Design of USB mobile flash memory using PDIUSBD12 and K9F5608U0A
Abstract This paper briefly introduces the USB (Universal Serial Bus) mass storage device class, gives the principle block diagram of USB controller PDIUSBD12 and flash memory K9F5608U0A, and designs ...
estgdan Embedded System
Sony is about to complete the reorganization of its consumer electronics division and enter new areas
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i]Sony is about to complete the reorganization of its consumer electronics division and enter new areas2006-08-14 11:38 Article sou...
fighting Mobile and portable
SparkRoad realizes personal camera
[i=s]This post was last edited by Adventure Warrior on 2022-8-1 00:17[/i]Using my free time on weekends, I can say that the basic functions of the simple board camera have been achieved. The main func...
冒险武者 Domestic Chip Exchange
How to detect transformer?
[i=s]This post was last edited by qwqwqw2088 on 2020-1-17 08:34[/i]Working with electronics inevitably involves contact with transformers, and detecting and judging their quality is one of the necessa...
qwqwqw2088 Analogue and Mixed Signal

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2029  1421  2589  2310  336  41  29  53  47  7 
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