© Semiconductor Components Industries, LLC, 2011

August, 2011 − Rev. P2

1

Publication Order Number:

PCS3P2189A/D

PCS3P2189A

Product Preview

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

Frequency

Space

±0.5%, ±1.0%, ±1.5%, ±2.0%

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

PIN CONFIGURATION

(Top View)

See detailed ordering and shipping information in the package

dimensions section on page 6 of this data sheet.

ORDERING INFORMATION

VDD

ModOUT

VSS

S0

XOUT

SSON

CLKIN / XIN

1

S1

TSSOP−8

T SUFFIX

CASE 948AL

PCS3P2189A