Clocks & Timing

The wide range of interfaces in today’s computing systems (PCI Express, SATA, USB, SAS, DMI, QPI, Hypertransport, Ethernet, etc.), and the multiple CPU architectures (Intel, Freescale, etc) demand a daunting array of tradeoffs in areas of performance, BOM cost, and board space. Renesas has the longest standing relationship with the industry’s leading CPU and compute vendors to offer both the largest portfolio of reference clock solutions and value-added clocks that provide customer-optimized tradeoffs.

Renesas is a leading innovator in the compute timing space with many firsts including: first to introduce low power HCSL outputs to replace standard-HCSL outputs for power savings up to 85%; first to provide dynamic frequency control for over/under clocking and margining; first to incorporate multiple PLLs in a single device to save power and board space. Renesas takes pride in offering motherboard clock and server clock solutions that best fit your particular design. Find your ideal computing clock solution by browsing the devices listed below.

Product Selection Table

    Processing table
    Chipset Manufacturer
    Clock Spec.
    Diff. Outputs
    Diff. Output Signaling
    Output Enable (OE) Pins
    Output Freq Range (MHz)
    Diff. Inputs
    Diff. Input Signaling
    Accepts Spread Spec Input
    Power Consumption Typ (mW)
    Advanced Features
    App Jitter Compliance
    Lead Count (#)
    Package Area (mm²)
    Part Number
    9QXL2000B
    20-Output DB2000Q PCIe Clock Buffer    		 Intel DB2000Q 20 LP-HCSL 8 1 - 400 1 HCSL Yes 594 Multiple SMBus addresses
    25G EDR, DB2000Q, IF-UPI, PCIe Gen1, PCIe Gen2, PCIe Gen3 and more...
    		 72 81
    9QXL2000C
    20-Output Enhanced DB2000Q PCIe Clock Buffer    		 Intel DB2000Q 20 LP-HCSL 8 1 - 400 1 HCSL Yes 739 Multiple SMBus addresses
    25G EDR, DB2000Q, IF-UPI, PCIe Gen1, PCIe Gen2, PCIe Gen3 and more...
    		 72 81
    9QXL2001B
    20-Output DB2000QL PCIe Clock Buffer    		 Intel DB2000QL 20 LP-HCSL 8 1 - 400 1 HCSL Yes 488 Multiple SMBus addresses, Side Band interface
    25G EDR, DB2000Q, IF-UPI, PCIe Gen1, PCIe Gen2, PCIe Gen3 and more...
    		 80 81
    9QXL2001C
    20-Output Enhanced DB2000QL PCIe Clock Buffer    		 Intel Enhanced DB2000QL 20 LP-HCSL 8 1 - 400 1 HCSL Yes 720 Multiple SMBus addresses, Side Band interface
    25G EDR, DB2000Q, IF-UPI, PCIe Gen1, PCIe Gen2, PCIe Gen3 and more...
    		 80 81
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