概览
描述
The 954309 is a CK410M clock synthesizer with additional SRC clock support. The 954309 provides a single-chip solution for mobile systems built with Intel P4-M processors and Intel mobile chipsets. The 954309 is driven with a 14.318MHz crystal and generates CPU outputs up to 400MHz.
特性
- 2 - 0.7V current-mode differential CPU pairs
- 9 - 0.7V current-mode differential SRC pair for SATA and PCI Express*
- 1 - 0.7V current-mode differential CPU/SRC selectable pair
- 4 - PCI (33MHz)
- 1 - PCICLK_F, (33MHz) free-running
- 1 - USB, 48MHz
- 1 - DOT, 96MHz, 0.7V current differential pair
- 1 - REF, double-strength 14.318MHz
- CPU outputs cycle-cycle jitter 85ps
- SRC outputs cycle-cycle jitter 125ps
- PCI outputs cycle-cycle jitter 500ps
- +/- 100ppm frequency accuracy on USB
- +/- 300 ppm accuracy clocks for Serial-ATA and PCI Express and CPU clocks
- Supports spread spectrum modulation, 0 to -0.5% down spread for CPU, SRC and PCI clocks
- Supports CPU clocks up to 400MHz
- Uses external 14.318MHz crystal, external crystal load caps are required for frequency tuning
- Supports undriven differential CPU, SRC pair in PD# for power management.
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