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