ICS954204

www.DataSheet4U.com Integrated Circuit Systems, Inc. ICS954204 Programmable Timing Control Hub™ for Mobile P4™ Systems Recommended Application: CK410M Compliant Main Clock with Integrated LCD Spread Spectrum Clock. Output Features: 2 - 0.7V current-mode differential CPU pairs 5 - 0.7V current-mode differential SRC pair for SATA and PCI-E 1 - 0.7V current-mode differential CPU/SRC selectable pair 4 - PCI (33MHz) 2 - PCICLK_F, (33MHz) free-running 1 - USB, 48MHz 1 - DOT, 96MHz, 0.7V current differential pair 1 - REF, 14.318MHz 1 - 0.7V current-mode differential LCD/SRC selectable pair. Key Specifications: CPU outputs cycle-cycle jitter < 85ps SRC outputs cycle-cycle jitter < 125ps PCI outputs cycle-cycle jitter < 500ps +/- 300ppm frequency accuracy on CPU & SRC clocks +/- 100ppm frequency accuracy on USB clocks Features/Benefits: Supports tight ppm accuracy clocks for Serial-ATA and SRC Supports programmable spread percentage and frequency 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. CLKREQ pins to support SRC power management. Pin Configuration VDDPCI GND PCICLK3 PCICLK4 PCICLK5 GND VDDPCI ITP_EN/PCICLK_F0 *SELSRC_LCDCLK#/PCICLK_F1 Vtt_PwrGd#/PD VDD48 FSLA/USB_48MHz GND DOTT_96MHz DOTC_96MHz FSLB/TEST_MODE LCDCLK_SST/SRCCLKT0 LCDCLK_SSC/SRCCLKC0 SRCCLKT1 SRCCLKC1 VDDSRC SRCCLKT2 SRCCLKC2 SRCCLKT3 SRCCLKC3 SRCCLKT4_...