时钟和时序

当今计算系统的各种接口（PCI Express、SATA、USB、SAS、DMI、QPI、超传输、以太网等）和多种 CPU 架构（Intel、Freescale 等）要求在性能、BOM 成本和电路板空间方面进行一系列复杂的权衡。 DT 与业内领先的 CPU 和计算供应商拥有最长的稳定关系，可提供最大的参考时钟解决方案和增值时钟产品组合，从而实现最佳权衡。

Renesas 是计算计时空间方面的领先创新者，拥有多个第一，其中包括：第一次引进替代标准 HCSL 的低功耗 HCSL 输出，节能比例高达 85%；第一次提供动态频率控制来控制超频/低频；第一次在单个器件中采用多个 PLL 来节省能源和电路板空间。 Renesas 提供最适合特定设计的主板时钟和服务器时钟解决方案。 浏览下面所列出的器件，查找理想的计算时钟解决方案。

产品选型表

    Processing table
    Chipset Manufacturer
    Clock Spec.
    100M SSC Outputs
    100M Non-SSC Outputs
    PCI 33.33M Outputs (#)
    25M Outputs
    Advanced Features
    Power Consumption Typ (mW)
    App Jitter Compliance
    Supply Voltage (V)
    Output Type
    Xtal Freq (MHz)
    Diff. Termination Resistors
    Lead Count (#)
    Package Area (mm²)
    器件号
    6P41505
    System Clock Generator for Loongson Platform    		 Loongson Loongson 7A 0 8 0 1 33MHz or 48MHz, 200MHz Differential LVDS 232 10GbE, PCIe Gen1, PCIe Gen2, PCIe Gen3, USB 3.0 1.8 - 3.3 HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL 25 0 48
    6V49205B
    Clock Generator for Freescale P1010, P1020, P2020, P2040 Processors    		 NXP Programmable Clock, Spread Spectrum PCIe Gen1, PCIe Gen2, PCIe Gen3 3.3 HCSL, LVCMOS 25 48 49, 76.3
    8413S12BI
    HCSL/LVCMOS Clock Generator    		 Cavium Cavium: Period Jitter < 70 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 901 PCIe Gen1, PCIe Gen2, PCIe Gen3, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    8413S12I-100
    Clock Generator For Cavium Processors    		 Cavium Cavium: Period Jitter < 70 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 901 PCIe Gen1, PCIe Gen2, PCIe Gen3, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    841N254I
    FemtoClock™ NG Crystal-to-LVDS/HCSL Clock Synthesizer    		 Cavium Cavium: Period Jitter < 44 ps 0 4 0 0
    100M output(s), 125M output(s), 156.25M output(s) and more...
    		 834 RXAUI, XAUI 2.5 - 3.3 HCSL, LVDS 25 10 32 25
    844S2416I
    FemtoClock™ Crystal-to-Differential HCSL/LVCMOS Frequency Synthesizer    		 Cavium Cavium: Period Jitter < 70 ps 1 2 0 12 Frequency Margining, Programmable Clock, Spread Spectrum 1060 PCIe Gen1, PCIe Gen2, PCIe Gen3 3.3 HCSL, LVCMOS 25 6 56 64
    8V41N012A
    Clock Generator For Cavium Processors    		 Cavium Cavium: Period Jitter < 44 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 970 PCIe Gen1, PCIe Gen2, PCIe Gen3, RXAUI, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    932SQ420
    CK420BQ Synthesizer    		 Intel CK420BQ 7 4 5 0 14.318M output(s), 48M output(s), DOT96M output pair(s) 1300 PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI 3.3 HCSL, LVTTL 25 48 64 81, 103.7
    932SQ428
    CK420BQ Derivative Synthesizer    		 Intel CK420BQ Derivative 3 2 5 0 14.318M output(s), 48M output(s), DOT96M output pair(s) 825 PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI 3.3 HCSL, LVTTL 25 24 48 36
    9EPRS525
    56-Pin CK505 Derivative for Embedded Systems    		 Intel CK505 Derivative 7 1 5 1
    14.318M output(s), 48M output(s), CPU 100M-400M output pair(s) and more...
    		 450 PCIe Gen1, PCIe Gen2 3.3 LP-HCSL, LVTTL 14.318 0 56 85.4
    9ERS3165
    64-Pin CK505 Derivative for Embedded Systems    		 Intel CK505 Derivative 12 1 5 1
    14.318M output(s), 48M output(s), CPU 100M-400M output pair(s) and more...
    		 383 PCIe Gen1, PCIe Gen2 3.3 LP-HCSL, LVTTL 14.318 0 64 81, 103.7
    9FGP204
    CK-MNG+ Peripheral Synthesizer for Intel Servers    		 Intel CK-MNG+ 1 0 1 2 32.768k output(s), 50M output(s), 125M output(s), DOT96M output pair(s) 673 3.3 HCSL, LVTTL 25 8 40 36
    9VRS4420D
    CK-µS for Intel µServers with 1GbE, PCIe Gen1-3 and SATA 1-3    		 Intel LP-HCSL 14.318 48
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