Gennum's Latest Transimpedance Amplifiers Enable Next Generation 10Gb/s Optical Interfaces

    Delivers High Sensitivity TIA for SFP+ Implementations

    BURLINGTON, ONTARIO, September 24 /CNW/ - Further broadening its
portfolio of high-performance data communications solutions, Gennum
Corporation (TSX:GND) unveiled two new additions to its successful lineup of
wideband, low-noise transimpedance amplifiers (TIAs) for next-generation SFP+
optical modules. Achieving one of the industry's best sensitivity capability
over a wide range of operating conditions, the new devices provide module
vendors with increased performance margins. This ensures that Gennum-enabled
modules meet industry-required performance specifications, which results in
dramatic manufacturing test cost savings and delivers a significant
time-to-market advantage.

    "Gennum's expertise in high-performance data communications has enabled
the development of these new TIAs, adding to our growing portfolio of data
communications products," said Imran Sherazi, Director of Marketing, Optical
Products Division for Gennum Corporation. "Increasingly, customers are forced
to choose between performance and design-robustness. Leveraging our
technology, customers are able to design optical modules without the need for
extensive testing across operating conditions, part binning or device tuning.
The added benefits of low power consumption, increased sensitivity and high
bandwidth capability will enable our customers to deploy our TIAs in
next-generation optical modules for SONET and 10GE applications."

    TIAs play an important role in data communications by converting current,
generated by an optical receiver's PIN or avalanche photodetector (APD), into
a voltage signal for other high speed ICs in the receive-chain. Signal
integrity is key during this conversion and TIAs must convert the smallest
current signals into a substantial voltage swing with minimum addition of
noise. This highly optimized conversion must occur across a wide range of
operating conditions, such as temperature and supply voltages. Gennum's unique
TIA architecture provides world-class sensitivity for both long and short
range applications, increasing performance margin and reducing manufacturing
and test costs. Additionally, Gennum's innovative architecture provides the
highest bandwidth, up to 12Gb/s, ensuring signal integrity in a wide range of
cost-optimized optical packages.

    Delivering World-Class Signal Integrity

    The GN1057 is an automatic gain control (AGC) TIA targeting long reach
multimode (LRM) applications. The GN1057 can achieve high linearity and total
harmonic distortion (THD) without compromising the best-in-class sensitivity
that customers have come to expect from Gennum TIAs. Targeting PIN and APD
applications for 10GE and SONET interfaces in SFP+ and other module form
factors, the GN1055 and GN1057 TIAs represent Gennum's follow up to its
industry-leading 10Gb/s TIA, the GN1052.

    Technical specifications for the GN1055/1057 include:

    --  Data rate: 10 to 11.3Gb/s 3.3V Transimpedance Amplifier

    --  Operating voltage range from 2.97 to 3.63V

    --  Operating temperature range from -40 to 125(degree)C temperature

    --  -21dBm sensitivity

    --  +4dBm overload

    --  Power consumption: 145mW


    The GN1055 and GN1057 are sampling now with volume production expected by
January 2008. Anticipated pricing is $12 in quantities of 1K.

    About Gennum

    Gennum Corporation (TSX:GND) is a leading designer and manufacturer of
semiconductor solutions for the global video and data communication markets. A
winner of a Technical Emmy(R) award for advances in high definition (HD)
broadcasting, Gennum's broad portfolio of products and technologies include
image processors, video timing and transport products, ICs for optical
transceivers and backplane interconnects. Gennum is headquartered in
Burlington, Canada, and has global design, research and development and sales
offices in Canada, Japan, Korea, Taiwan and the United Kingdom.

    Gennum, the Gennum logo are registered trademarks of Gennum Corporation.
All other product or service names are the property of their respective
owners. Gennum Corporation, 2007.

For further information:

For further information: Gennum Corporation Robin Vaitonis, 905-632-2999
ext. 2110 E-mail:

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