CY28158 - Spread Spectrum Timing Solution for Serverworks Chipset
Reference crystal input Reference crystal feedback CPU clock outputs PCI clock outputs, synchronously running at 33.33 MHz Free running PCI clock 3V66 clock outputs, running at 66.66 MHz IOAPIC clock outputs, running at 16.67 MHz Reference clock outputs, 14.318 MHz 48-MHz USB clock output Active LOW
CY28158 Features
* Maximized EMI suppression using Cypress’s spread spectrum technology
* Based on Industry Standard CK133 Pinout with all outputs compliant to CK98 specifications
* 0.5% downspread outputs deliver up to 10dB lower EMI
* 6 skew-controlled copies of CPU output
