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PDF PCS3P2537A Data sheet ( Hoja de datos )
| Número de pieza | PCS3P2537A | |
| Descripción | Low Power Peak EMI Reduction IC | |
| Fabricantes | PulseCore Semiconductor | |
| Logotipo |  |
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February 2008
rev 0.2
PCS3P2537A
Low Power Peak EMI Reduction IC
Features
• 1x Peak EMI Reduction IC
• Input Frequency: 18MHz-36MHz
• Output Frequency: 18MHz-36MHz
• Frequency Deviation @ 27MHz : -0.25%
• Modulation Rate @ 27MHz : 30.1KHz
• Supply Voltage: 3.3V±0.3V
• Operating current less than 8mA @ 27MHz.
• Spread Spectrum Enable Control.
• Low power CMOS design.
• 8 pin TDFN (2X2) COL package.
• Commercial temperature
Product Description
PCS3P2537A modulates the output of wa wswing.DleatPaSLhLeeint4U.com
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’.
PCS3P2537A has a frequency range of 18MHz-36MHz,
and accepts input clock either from a Crystal or from an
external reference and locks on to it delivering a 1x
spread spectrum clock output. It has an SSON control for
enabling and disabling Spread Spectrum function.
PCS3P2537A is a versatile Low Power, 1x spread
spectrum frequency modulator designed to reduce
electromagnetic interference (EMI) at the clock source,
allowing system wide reduction of EMI of down stream
clock and data dependent signals. The device allows
significant system cost savings by reducing the number of
circuit board layers ferrite beads, shielding and other
passive components that are traditionally required to pass
EMI regulations.
PCS3P2537A operates with a supply voltage of 3.3V,
and is available in 8L TDFN(2X2) COL package over
commercial temperature.
Application
PCS3P2537A is targeted towards PC peripheral devices
and embedded systems.
Block Diagram
VDD
SSON
CLKIN / XIN
XOUT
Crystal
Oscillator
PLL
ModOUT
GND
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.
1 page  
February 2008
rev 0.2
Package Information
TDFN COL 2x2 8L package
PCS3P2537A
www.DataSheet4U.com
Symbol
A
A3
b
D
E
e
L
Dimensions
Inches
Millimeters
Min
Max
Min
Max
0.027
0.0315
0.70
0.80
0.008 BSC
0.203 BSC
0.008
0.012
0.20
0.30
0.077
0.080
1.95
2.05
0.077
0.080
1.95
2.05
0.020 BSC
0.50 BSC
0.020
0.024
0.50
0.60
Low Power Peak EMI Reduction IC
Notice: The information in this document is subject to change without notice.
5 of 7
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| Páginas | Total 7 Páginas | |
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