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1.5V PCIe buffers reduce size, power use

24 Jul 2014

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Integrated Device Technology Inc. (IDT) expanded its PCIe timing portfolio with the industry's first 1.5V PCI Express buffer family.

IDT's U-series ultra-low power PCIe buffers operate from the same supply voltage as modern systems-on-chip (SoCs) and field programmable gate arrays (FPGAs), enabling designers to use the same power rail, thus reducing system complexity, physical size, and power consumption.

The 9DBU buffers are offered in two- to nine-output configurations to address virtually any PCIe application. Both non-PLL fan out and PLL zero-delay-buffer modes are supported.

9DBU buffers

"SoCs and FPGAs are moving to lower supply voltages and IDT is extending its PCIe timing solutions portfolio to address this trend," said Dave Shepard, VP and general manager of Timing and RF at IDT. "Our 1.5V solutions take advantage of the low-voltage power savings, while simultaneously enabling customers to consolidate power rails to reduce the complexity of their systems. The new timing solutions complement IDT's V-series of 1.8V PCIe clocks for communications, computing, and consumer markets."

Device options include external or internal terminations, allowing designers to choose between maximum flexibility with external termination circuitry, or maximum space savings using internal terminations. The entire family operates from a 1.5V supply, resulting in the industry's lowest power consumption for PCIe timing devices, with eight-output devices using a mere 40mW—reducing cooling requirements and lowering operating costs.

The 1.5V U-series devices are pin-compatible with IDT's widely-adopted 1.8V V-series, allowing for easy substitution as SoC operating voltages continue to drop. The 9DBU buffers are compliant with PCIe Gen 1, 2, and 3 so designers can use the same component through several generations of product.

The IDT 9DBU buffers are currently sampling to qualified customers. They are available in standard VFQFPN packages ranging from 4mm x 4mm to 6mm x 6mm.




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