General Description

The Cypress SM561 is a Spread Spectrum Clock Generator (SSCG) IC used for the purpose of reducing EMI found in today’s high-speed digital electronic systems.

Features

• 54- to 166-MHz operating frequency range

• Wide (9) range of spread selections

• Accepts clock and crystal inputs

• Low power dissipation

• 3.3V = 165 mw. (Fin = 120 MHz)

• Frequency spread disable function

• Center spread modulation

• Low cycle-to-cycle jitter

• Eight-pin SOIC package

Applications

• High-resolution VGA controllers

• LCD panels and monitors

• Workstations and servers

Benefits

• Peak electromagnetic interference (EMI) reduction by 8 to 16 dB

• Fast time to market

• Cost reduction