Overview

The W42C32 modulates the output of a single PLL in order to ‘spread’ the bandwidth of a synthesized clock and, more importantly, decrease the peak amplitudes of its fundamental harmonics. Since peak amplitudes are reduced, the radiated electromagnetic emissions of the W42C32-05 are significantly lower than the typical narrow band signal produced by oscillators and most frequency generators.

Features

• Maximized EMI suppression using Cypress’s Spread Spectrum technology

• Generates a spread spectrum timing signal

• Reduces measured EMI by as much as 12 dB

• Integrated loop filter components

• Requires a single low-cost fundamental crystal (or other frequency reference) for proper operation

• Special spread spectrum control functions

• Low-power CMOS design

• Available in 16-pin SOIC package, (300 mil)