Low-power repeaters triple the Reach of PCI Express Gen-3 Standard
May 04, 2011 // Paul Buckley
National Semiconductor has introduced a new family of PCI Express (PCIe) Gen-3 (8 Gbps) repeaters that claim to offer unprecedented signal conditioning performance and low-power consumption for data center servers and storage systems.
“PCI Express 3.0 increases the data rate to 8 GT/s, allowing Intel’s next generation desktop and server platforms to meet the I/O bandwidth demands of today’s applications,” said Dave Thompson, Platform Applications Engineer at Intel Corporation. “National Semiconductor’s PCIe repeaters address the tough signal integrity requirements of PCI-SIG receiver testing and are utilized to compensate for interconnect loss, ensuring an open eye.”
National’s PCIe repeaters passed Gen-3 interoperability testing with Intel server processors and multiple third-party PCIe controllers at the PCI-SIG Compliance Workshop, held the week of April 18, 2011. The tests included link training and data transactions in x4, x8 and x16 configurations at Gen-1, Gen-2 and Gen-3 speeds.
Powered by National’s third-generation SiGe BiCMOS process, the new PCIe repeaters solve the signal integrity challenges presented by the 8 Gbps Gen-3 data rate. The DS80PCI102, DS80PCI402 and DS80PCI800 accomplish this by providing receive equalization gain up to 36 dB and transmit de-emphasis of 12 dB to deliver 3x the signal reach and half the power (65 mW/channel) of competitive devices. The PowerWise repeaters breakthrough performance enables up to 40 inches of FR-4 backplane reach to simplify migration from Gen-2 to Gen-3 data rates, making it possible for system designers to use inexpensive, higher loss cable and board interconnects.
The DS80PCI402 enables implementation of x4 PCIe interfaces while the DS80PCI800 is ideal for higher density interfaces such as x8 and x16. The DS80PCI102’s x1 interface is well-suited for industrial and desktop applications. Each device supports seamless detection and management of the new Gen-3 transmit FIR handshake protocol and PCIe out-of-band signals (such as transmit idle/beacon and receive detect) without external system intervention. These features guarantee PCIe interoperability at both the electrical and system level, while reducing design complexity.
The DS80PCI800 includes eight channels while the DS80PCI402 features four bidirectional lanes and the DS80PCI102 one bidirectional lane. Each device delivers 65 mW per channel typical power consumption and are easy to use, supporting a selectable 3.3 V or 2.5 V single-supply voltage with no reference clock required. The repeaters extend interconnect reach by performing both receive equalization and transmit de-emphasis on each lane to compensate for channel loss. This allows for maximum flexibility in physical placement within a system. A flow-through pin-out minimizes internal device jitter and allows for easy board layout. All three repeaters allow powering down of unused channels, and apply signal conditioning settings via pin selection, SMBus (I2C compliant) or directly from an EEPROM.
Sampling now and offered in 10 mm by 5.5 mm, 54-pin leadless LLP packages, the DS80PCI800 (8-channel) repeater is priced at $7.95 each and the DS80PCI402 (4-lane) is priced at $5.95 each. The single-channel DS80PCI102 is supplied in a 24-pin LLP package and is priced at $3.95 each. All prices are in small volume quantities. Production quantities will be available in the third quarter of 2011.
More information on the PCIe Gen-3 repeaters at
Step aside MEMS. Here comes NEMS
December 10, 2013
Automotive industry sees innovation in products, not business models
Big moves in chip vendor top 20 ranking
Extendible processors go head to head backed by EDA giants
Koch Industries acquires Molex for USD7.2 billion
EnOcean joins the OSGi Alliance to define universal open interface for energy harvesting wireless
December 10, 2013
Energy harvesting wireless solutions specialist, EnOcean, has joined the OSGi Alliance and will now actively contribute to ...
GaN-on-silicon LEDs to grow market share to 40 percent by 2020
Pebble CEO turns back clock
Tyndall National Institute captures snapshots of moving atoms under bursts of light
- 3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies
- UltraCMOS® Semiconductor Technology Platforms: A Rapid Advancement of Process & Manufacturing
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
- Isolated 4-Channel, Thermocouple/RTD Temperature Measurement System with 0.5°C Accuracy
InterviewPerformance monitoring solution helps provide intelligent control of high power systems
A performance monitoring solution designed to enable companies to monitor high power IGBT module systems in locomotive, wind turbine, High Voltage DC and industrial drive applications was unveiled this ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.