© Semiconductor Components Industries, LLC, 2015

June, 2015 − Rev. 6

1

Publication Order Number:

P2042A/D

P2042A

LCD Panel EMI Reduction IC

Product Description

The P2042A is a versatile spread spectrum frequency modulator

designed specifically for digital flat panel applications. The P2042A

reduces electromagnetic interference (EMI) at the clock source,

allowing system wide reduction of EMI of down stream clock and data

dependent signals. The P2042A 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 P2042A uses the most efficient and optimized modulation

profile approved by the FCC and is implemented in a proprietary all

digital method.

The P2042A 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

The P2042A is targeted towards digital flat panel applications for

notebook PCs, palm−size PCs, office automation equipments, and

LCD monitors.

Features

Frequency

Clock Frequencies

Space

Controller Specifications

www.onsemi.com

PIN CONFIGURATION

(Top View)

See detailed ordering and shipping information in the package

dimensions section on page 4 of this data sheet.

ORDERING INFORMATION

VDD

SR0

ModOUT

SSON#

CP0

CP1

CLKIN

1

VSS

TSSOP−8

T SUFFIX

CASE 948J

MARKING

DIAGRAM

AAM = Specific Device Code

Y

= Year

WW= Work Week

A

= Assembly Location

G

= Pb−Free Package

AAM

YWW

A

G

1

8