W42C32-05
W42C32-05 is Spread Spectrum Frequency Timing Generator manufactured by Cypress.
Features
- Maximized EMI suppression using Cypress’s Spread Spectrum technology
- Generates a spread spectrum timing signal
- Reduces measured EMI by as much as 12 d B
- Integrated loop filter ponents
- 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)
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. Lowering a signal’s amplitude by increasing its bandwidth is a method of reducing EMI called...
