PCS3P2191A Datasheet, PDF (1/7 Pages) PulseCore Semiconductor – Spread Spectrum Clock Generator

PCS3P2191A
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Spread Spectrum Clock
Generator
Description
PCS3P2191A is a versatile spread spectrum frequency modulator
that generates four low EMI 4x clocks at the output. PCS3P2191A
offers seven selectable centre spread options of ±0.5% to ±2.0%, and a
no spread option. (Refer to Spread Deviation Selection Table).
PCS3P2191A reduces electromagnetic interference (EMI) at the clock
source, allowing system wide reduction of EMI of all clock dependent
signals. The PCS3P2191A 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
PCS3P2191A uses the most efficient and optimized modulation
profile approved by the FCC and is implemented in a proprietary all
digital method. The Device is available in 16−Pin TSSOP package, in
Commercial and Industrial temperature range.
Application
PCS3P2191A is targeted for LCD panel application.
Features
• Generates Four 4x Low EMI Spread Spectrum Clocks
• 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%, ±0.75%, ±1.0%, ±1.25%, ±1.5%, ±1.75%, ±2.0%
• Supply Voltage: 3.3 V ± 0.3 V
• Commercial and Industrial Temperature Range
• 16−pin TSSOP Package
• Advanced Low Power CMOS Process
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
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−16
T SUFFIX
CASE 948AN
PIN CONFIGURATION
1
VDD
GND
S2
GND
CLK1
CLK2
GND
XIN / CLKIN
VDD
S0
S1
GND
CLK4
CLK3
GND
XOUT
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
August, 2011 − Rev. P2
Publication Order Number:
PCS3P2191A/D