PRELIMINARY W199 Spread Spectrum FTG for VIA Apollo Pro-133 Features • Maximized EMI suppression using Cypress’s Spread Spectrum Technology • Single-chip system frequency synthesizer for VIA Apollo Pro-133 • Two copies of CPU output • Six copies of PCI output • One 48-MHz output for USB • One 24-MHz output for SIO • Two buffered reference outputs • One IOAPIC output • 13 SDRAM outputs provide support for 3 DIMMs • Supports frequencies up to 150 MHz • I2C™ interface for programming • Power management control inputs • Available in 48-pin SSOP Table 1.
Mode Input Table Mode 0 1 Table 2.
Pin Selectable Frequency Input Address FS3 1 1 1 1 1 1 1 1 0 CPU Cycle-to-Cycle Jitter: .
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