PCS3P2189A Datasheet, PDF (1/6 Pages) PulseCore Semiconductor – Spread Spectrum Clock Generator

PCS3P2189A
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Spread Spectrum Clock
Generator
Description
PCS3P2189A is a versatile spread spectrum frequency modulator
that generates a low EMI 4x clock at the output. PCS3P2189A offers
four selectable centre spread options of ±0.5%, ±1.0%, ±1.5%, ±2.0%,
(Refer to Spread Deviation Selection Table). PCS3P2189A reduces
electromagnetic interference (EMI) at the clock source, allowing
system wide reduction of EMI of all clock dependent signals. The
PCS3P2189A 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. PCS3P2189A has
spread spectrum ON/OFF option.
The PCS3P2189A uses the most efficient and optimized modulation
profile approved by the FCC and is implemented in a proprietary all
digital method.
Application
PCS3P2189A is targeted for LCD panel application.
Features
• Generates a 4X Low EMI Spread Spectrum Clock of the Input
Frequency
• Input Frequency: 10 MHz − 25 MHz
• Output Frequency: 40 MHz − 100 MHz
• Internal Loop Filter Minimizes External Components and Board
Space
• Selectable Centre Spread Frequency Deviation:
±0.5%, ±1.0%, ±1.5%, ±2.0%
• Supply Voltage: 3.3 V ± 0.3 V
• Commercial and Industrial Temperature Range
• 8−pin TSSOP Package
• Low Power CMOS Process
• This is a Pb−Free Device
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
http://onsemi.com
TSSOP−8
T SUFFIX
CASE 948AL
PIN CONFIGURATION
1
CLKIN / XIN
VDD
XOUT
ModOUT
SSON
VSS
S1
S0
PCS3P2189A
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
August, 2011 − Rev. P2
Publication Order Number:
PCS3P2189A/D