954206B

Programmable Timing Control Hub™ for Mobile P4™ Systems 954206B DATASHEET General Description The 954206B is a CK410M Compliant clock synthesizer. 954206B provides a single-chip solution for mobile systems built with Intel P4-M processors and Intel mobile chipsets. 954206B is driven with a 14.318MHz crystal and generates CPU outputs up to 400MHz. It provides the tight ppm accuracy required by Serial ATA and PCI Express. Recommended Application CK410M Compliant Main Clock Output Features 2 - 0.7V current-mode differential CPU pairs 4 - 0.7V current-mode differential PCI Express*pairs 1 - 0.7V current-mode differential CPU/PCI Express selectable pair 1 - 0.7V current-mode differential SATA pair 1 - 0.7V current-mode differential LCDCLK/PCI Express selectable pair 1 - 0.7V current-mode differential PCI Express/Clock Request pair 4 - PCI (33MHz) 2 - PCICLK_F, (33MHz) free-running 1 - USB, 48MHz 1 - DOT, 96MHz, 0.7V current differential pair 2 - REF, 14.318MHz Features/Benefits Supports tight ppm accuracy clocks for Serial-ATA and PCI Express Supports programmable spread percentage and frequency Uses external 14.318MHz crystal, external crystal load caps are required for frequency tuning Supports undriven differential CPU, PCI Express pair in PD for power management. PEREQ# pins to support PCI Express and SATA power management. Key Specifications CPU outputs cycle-cycle jitter < 85ps PCI Express outputs cycle-cycle jitter < 125ps SATA ...