PI6C557-03A

PI6C557-03A PCIe 2.0 Clock Generator with 2 HCSL Outputs Features ÎÎPCIe® 2.0 compliant àà Phase jitter - 2.1ps RMS (typ) ÎÎLVDS compatible outputs ÎÎSupply voltage of 3.3V ±10% ÎÎ25MHz crystal or clock input frequency ÎÎHCSL outputs, 0.8V Current mode differential pair ÎÎJitter 35ps cycle-to-cycle (typ) ÎÎSpread of -0.5%, -0.75%, and no spread ÎÎIndustrial temperature range ÎÎSpread Bypass option available ÎÎSpread and frequency selection via external pins ÎÎPackaging: (Pb-free and Green) àà 16-pin TSSOP (L16) àà 16-pin QSOP (Q16) Block Diagram Description The PI6C557-03A is a spread spectrum clock generator compliant to PCI Express® 2.0 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce Electromagnetic Interference (EMI). The PI6C557-03A provides two differential (HCSL) or LVDS spread spectrum outputs. The PI6C557-03A is configured to select spread and clock selection. Using Pericom's patented PhaseLocked Loop (PLL) techniques, the device takes a 25MHz crystal input and produces two pairs of differential outputs (HCSL) at 25MHz, 100MHz, 125MHz and 200MHz clock frequencies. It also provides spread selection of -0.5%, -0.75%, and no spread. Pin Configuration (16-Pin TSSOP) SS1:SS0 2 S1:S0 2 X1/CLK 25 MHz crystal or clock X2 Pulling Capacitors VDD 2 Control Logic Phase Lock Loop Crystal Driver 2 GND RR OE CLK0 CLK0 CLK1 CLK1 S0 S1 SS0 X1/CLK X2 OE GNDX SS1 1 2 3 4 5 6 7 8 16 VDDX 15 CLK0 14 CLK0 13 GNDA 12 VDDA 11...