Pericom Graphics Switch Connects to PCI Express, DisplayPort in Next-Generation PCs
February 29, 2008 // Published as a news service by IHS
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Pericom Semiconductor Corp. announced a next-generation high-speed switch for graphics interface between PCs and monitors based on Gen2 peripheral component interconnect (PCI) Express (PCIeG2) and DisplayPort (DP) architectures.
According to Pericom, the introduction of the PI3PCIE2612-A and PI3PCIE 2612-B capitalizes on the transition PC manufacturers are making to DP, a license-free digital audio/video (A/V) interconnect standard.
Next-generation PCs feature dual-function graphics ports capable of offering a DP output from an embedded graphics accelerator or PCIeG2 output through enhanced graphics cards slots.
PI3PCIE2612-A/B provides point-to-point connections between the PC chipsets to those of the DP connector or the x16 PCIeG2 slot for external graphics cards.
"The implementation of DisplayPort technology is currently emerging in PC graphics," said Brian O'Rourke, principal analyst at In-Stat. "Pericom's latest PCIeG2/DP switch provides a unique solution for system designers to connect either DisplayPort or PCI Express graphics-output ports to monitors."
"Providing a point-to-point PCIeG2/DP switching solution through a single PCB [printed circuit board] skew allows easy and inexpensive support to both low-cost embedded graphics as well as an upgrade path to high-end accelerator cards," said Shaf Rahman, senior marketing director for Pericom switch and interface solutions.
PI3PCIE2612-A/B features include:
- In a typical 1:2 DeMux configuration, four DP channels or four PCIeG2 lanes plus Aux channel for training sequence and hot plug detect (HPD) for connectivity detection.
- Low R-on/C-on for maximum signal transfer and low distortion.
- A bandwidth of 2.5 GHz at -5 dB to handle both DP signals at 2.7 Gbps and PCIeG2 signals at 5.0 Gbps.
- Crosstalk of -35 dB at 2.5 GHz to minimize transmission noise and high isolation of -35 dB at 2.5 GHz to minimize leakage current between the source and the drain.
- Channel-to-channel skew of less than 35 ns and bit-to-bit skew of less than 7 ps.
- High 8 KV contact electrostatic discharge (ESD) protection on the DP path to potentially eliminate ESD protection devices.
The device is offered in 56 thin fine pitch quad flat no-lead (TQFN) (5 millimeter by 11 millimeter, 0.5 pad pitch) package, operating at 3.3 volt (V) power supply with two pin-out versions to comply with advanced technology extended (ATX) and balanced technology extended (BTX) style PC motherboards.
Source: Pericom Semiconductor Corp.