P3P2043B_12 Datasheet, PDF (1/5 Pages) ON Semiconductor – LCD Panel EMI Reduction IC

P3P2043B
LCD Panel EMI Reduction IC
Product Description
The P3P2043B is a versatile spread spectrum frequency modulator
designed specifically for digital flat panel applications. The
P3P2043B reduces electromagnetic interference (EMI) at the clock
source, allowing system wide reduction of EMI of down stream clock
and data dependent signals. The P3P2043B 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.
The P3P2043B uses the most efficient and optimized modulation
profile approved by the FCC and is implemented in a proprietary all
digital method.
The P3P2043B 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’.
Features
• FCC Approved Method of EMI Attenuation
• Provides Up to 15 dB of EMI Suppression
• Generates a Low EMI Spread Spectrum Clock of the Input
Frequency
• Input Frequency Range: 30 MHz to 110 MHz
• Optimized for 32.5 MHz, 54 MHz, 65 MHz, 74 MHz and 108 MHz
Pixel Clock Frequencies
• Internal Loop Filter Minimizes External Components and Board
Space
• Eight Selectable High Spread Ranges Up to $2%
• SSON# Control Pin for Spread Spectrum Enable and Disable Options
• Low Cycle−to−Cycle Jitter
• 3.3 V $ 0.3 V Operating Range
• Low power CMOS Design
• Supports Most Mobile Graphic Accelerator and LCD Timing
Controller Specifications
• Available in 8−pin SOIC Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• The P3P2043B is targeted towards digital flat panel applications for
notebook PCs, palm−size PCs, office automation equipments and
LCD monitors.
http://onsemi.com
8
1
SOIC−8
CASE 751
MARKING
DIAGRAMS
8
CML
ALYW
G
1
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PIN CONFIGURATION
CLKIN 1
CP0 2
MR 3
VSS 4
8 VDD
7 SR0
6 ModOUT
5 SSON#
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
1
July, 2012 − Rev. 0
Publication Order Number:
P3P2043B/D