ICS951601

ICS951601 Preliminary Product Preview General Purpose Frequency Timing Generator Recommended Application: General Purpose Clock Generator Output Features: 17 - PCI clocks selectable, either 33.33MHz or 66.6MHz @ 3.3V 1 - 48MHz @ 3.3V 1 - REF @ 3.3V, 14.318MHz. Features: Programable Spread spectrum precentage for EMI control Uses external 14.318MHz crystal Select pins for frequency select Key Specifications: PCI – PCI output skew within same bank @ 33MHz: <170ps PCI – PCI output skew within same bank@ 66MHz: <340ps Cycle to Cycle Jitter PCI @ 33MHz: <200ps Cycle to Cycle Jitter PCI @ 66MHz: <200ps Cycle to Cycle Jitter 48MHz: <350ps Cycle to Cycle Jitter REF: <500ps Slew Rate: 1.5 - 4 V/ns. (PCI spec.) Pin Configuration REF0 1 VDD 2 X1 3 X2 4 GND 5 SDATA 6 SCLK 7 GNDA 8 VDDA 9 SEL1A 10 PCI1A_0 11 PCI1A_1 12 VDD33 13 GND 14 PCI1A_2 15 PCI1A_3 16 GND 17 VDD33 18 PCI1A_4 19 PCI1A_5 20 VDD33 21 GND 22 PCI1A_6 23 PCI1A_7 24 ICS951601 48 48MHz 47 GND 46 VDD48 45 SPREAD 44 VDDA 43 GNDA 42 SEL2B 41 PCI2B_2 40 PCI2B_1 39 GND 38 VDD66 37 PCI2B_0 36 SEL2A 35 PCI2A_2 34 PCI2A_1 33 VDD2A 32 GND 31 PCI2A_0 30 SEL1B 29 PCI1B_2 28 PCI1B_1 27 GND 26 VDD1B 25 PCI1B_0 48-pin SSOP *120K ohm pull-up to VDD on indicated inputs. 0663C—10/04/05 Block Diagram PLL2 X1 XTAL X2 OSC PLL1 Spread Spectrum SDATA SCLK SELA (2:1) SELB (2:1) SPREAD Control Logic Config. Reg. ...