Pll Clock Driver For 2.5v Ddr-sdram Memory Semiconductor Corporation

PI6CV857L PLL Clock device is developed for registered DDR DIMM applications This PLL Clock Buffer is designed for 2.5 VDDQ and 2.5V AVDD operation and differential data input and output levels. Package options include plastic Thin Shrink Small-Outline Package (TSSOP).The device is a zero delay Buffer that distributes a differ- ential Clock input pair (CLK, CLK) to ten differential pairs of Clock outputs (Y[0:9], Y[0:9]) and one differential pair feedback Clock outputs (FBOUT,FBOUT) . The Clock outputs are controlled by the input Clocks (CLK, CLK), the feedback Clocks (FBIN,FBIN), the 2.5V LVCMOS input (PWRDWN) and the Analog Power input (AVDD). When input PWRDWN is low while power is applied, the input receivers are disabled, the PLL is turned off and the differential Clock outputs are 3-stated. When the AVDD is strapped low, the PLL is turned off and bypassed for test purposes. When the input frequency falls below a suggested detection fre- quency that is below the operating frequency of the PLL the device will enter a low power mode. An input frequency detection circuit will detect the low frequency condition and perform the same low power features as when the PWRDWN input is low. The PLL in the PI6CV857L Clock Driver uses the input Clocks (CLK, CLK) and the feedback Clocks (FBIN,FBIN) to provide high-perfor- mance, low-skew, low-jitter output differential Clocks (Y[0:9], Y[0:9]). The PI6CV857L is also able to track Spread Spectrum Clocking for reduced EMI By Pericom Semiconductor Corporation
PI6CV857L 's PackagesPI6CV857L 's pdf datasheet
PI6CV857LA




PI6CV857L Pinout, Pinouts
PI6CV857L pinout,Pin out
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