Vitesse, a provider of advanced IC solutions for Carrier
and Enterprise networks, announced the VSC7224, a multi-protocol, adaptive quad
channel extender.
For use in a wide variety of network equipment targeting
support for next-generation protocols such as 10G/40G/100G Ethernet, Infiniband
FDR, and 16G Fibre Channel, the VSC7224 delivers the industry’s widest data
rate range from 155 Mbps to 14.1 Gbps and power consumption as low as 100mW per
channel.
Explosive demand for cloud computing
services, multimedia content and mobile access has placed unprecedented strain
on networking systems. Forced to rapidly upgrade network equipment, many
Carrier and Enterprise service providers choose to convert legacy systems to
accommodate the higher bandwidth.
This preserves their infrastructure investments and
reduces capital expenditures. Signal integrity impairments and higher power
become key considerations which must be managed. To improve performance and
range, higher bandwidth links require better control over signal quality, which
must also be balanced with lower power consumption requirements.
Vitesse’s VSC7224 offers a comprehensive, low power
signal integrity solution which can easily and adaptively compensate for signal
degradation in challenging network environments.
Throughout its history Vitesse has been at the forefront
of solving critical signal integrity issues,” said Kinana Hussain, product
marketing manager, Vitesse.
The VSC7224 solves the challenge of compensating for
signal degradation in difficult network environments. Its power savings,
ability to run to 14 Gbps, and suitability in multiple applications allows OEMs
to easily balance requirements for high performance and reliability with lower
system costs and lower power,” Hussain added.
Featuring Vitesse’s proprietary adaptive FlexEQ
technology, the VSC7224 delivers the industry’s broadest hardware-based
equalization suite, capable of equalizing multiple 14 Gbps signals over ranges
greater than 65 inches of FR4 board trace or 20m of 24AWG twin-ax copper cable.
Unlike competitive solutions, the VSC7224 has four
Decision Feedback Equalizer (DFE) taps to combat impairments in the signal from
crosstalk and reflections, achieving Isolation to Crosstalk Ratio (ICR) of
better than 12dB.
The hardware-enabled adaptive receiver on the VSC7224
eliminates the arduous process of manually optimizing each individual lossy
channel. With the benefit of the adaptive receiver, together with Vitesse’s
renowned VScope embedded waveform viewing technology, total system design time
can be reduced by an estimated 30 percent compared to using manually optimized
solutions.
The combination of autonomous adaptive equalization and
a Clock & Data Recovery (CDR) unit that can be used at multiple speeds to
effectively reset the jitter budget, makes this channel extender extremely
useful for next-generation systems, especially to reduce system design time and
improve yields,” said Abhi Dugar, research manager, wired communications
semiconductor research, IDC.
Capable of operating in either re-driver (without a CDR) or
re-timer modes, the VSC7224 offers maximum flexibility to its users. These
options enable the user to re-time the incoming signal with a CDR, or run it in
re-driver mode to reduce system power.
The VSC7224 can be controlled through the two-wire
interface for maximum programmability, or pin strapped to reduce system
complexity and eliminate the cost of an external microcontroller.
The device also allows a high degree of application
flexibility, with each channel’s CDR able to independently operate at any
distinct data rate between 155 Mbps and 14.1 Gbps through the inclusion of
built-in frequency synthesizers.
By Telecomlead.com Team
[email protected]
