Semtech’s GN3257 ROSA is a fully-integrated device with design features that ensure excellent RF stability, together with high gain. The GN3257 offers excellent performance in low-OSNR environments, coupled with low power consumption. Automatic Gain Control (AGC) is employed to maximize the dynamic range over which linearity is maintained. This enables state-of-the-art sensitivity for both stressed and unstressed data, and is capable of maintaining excellent performance for extinction ratios from infinite to 3dB.
- Linear dynamic range designed for optimal OSNR performance
- Low noise
- Single +3.3V power supply
- Power dissipation 198mW (typical)
- Integral PIN photodiode
- Mean power sensitivity (BER = 1E-12): -19dBm typical
- Mean Optical Overload +2dBm
- Optical Return Loss > 27dB
- Optical wavelength range: 1260nm to 1620nm
- Available with MSA compatible flex circuit
- Operates from 9.95Gb/s to 11.3Gb/s NRZ rates
- Typical OE bandwidth 9GHz minimum
- ITU/IEEE-based transmission systems, test equipment and modules
- 10 Gigabit Ethernet
- Low OSNR DWDM
- OC-192 fibre optic modules and line termination
- Serial data systems up to 11.3Gbps
- Long Haul WDM applications, meeting the requirements of OTU2, OTU2e and OTUFlex.
Explore a wealth of downloadable resources and datasheets to assist with prototyping and production.
Login or register for mySemtech to gain access to restricted product documentation and to add documents to your Watch List for update alerts
Distributor/Catalog Supplier Inventory
View product availability from participating distributors below. Browse all distributers here.
Semtech Unveils New Products for Next-Gen Data…Semtech also joins Mobile Optical Pluggable Alliance (MOPA) in commitment to advance 5G requirements… READ NOW
Semtech Joins Mobile Optical Pluggable Alliance to…Semtech has joined the industry leading Mobile Optical Pluggable Alliance (MOPA) along with… READ NOW
Semtech Announces Production Release of…The new FiberEdge GN1300 and GN1400 transimpedance amplifiers READ NOW
From smartphones and laptops, to ATMs and online shopping, data is constantly in flight. As consumer technology and industry innovations advance, global data creation is projected to grow to 175 zettabytes (ZB) by 2025. Nearly 53ZB of that data will be consumed in real time—the data equivalent of streaming 583 billion 4K videos at once—which will strain current network infrastructure.
Tri-Edge: Preparing for Future Wireless Networks…From smartphones and laptops, to ATMs and online shopping, data is constantly in flight.… READ NOW
Optical solutions are essential to connect and power the digital era as signal integrity forms the backbone of every digital platform. Every time someone opens a webpage or uses a connected device, data moves from point A to B—often using optical fiber. With increasing industry and consumer demand for high-quality internet and fast upload and download speeds, fiber now makes up 32% of fixed-broadband subscriptions, up 20% in the last decade. The data center and enterprise networking companies powering data usage and cloud computing need high performance optical interconnect technology to minimize cost and power consumption without sacrificing efficiency and speed.
Tri-Edge: Next-Gen Data Center and Wireless…Optical solutions are essential to connect and power the digital era as signal integrity… READ NOW
Brought on by the convergence of the Cloud and the Internet of Things, hyperscale data centers and wireless operators are pushing towards 200G and 400G. Key to this transition are optical modules, which is where Semtech’s Tri-Edge™ technology plays a core role. With increasing bandwidth demands, optical modules must evolve alongside data center equipment to deliver greater density, lower power consumption, and lower latency. We spoke more about this with Timothy Vang, Vice President, Marketing and Applications at Semtech.
Tri-Edge Technology: A Q&A With SemtechBrought on by the convergence of the Cloud and the Internet of Things, hyperscale data… READ NOW
In the coming years, data center traffic will continue to see immense growth. Cloud services, Internet of Things (IoT) and ever-increasing broadband demand are driving a massive push by hyperscale data centers and wireless operators towards 200G and 400G. Optical modules, key building blocks for connecting data center equipment, must also evolve to meet these bandwidth demands with greater density, lower power consumption and lower latency.
Semtech’s Tri-Edge Enhances Alibaba Data CentersIn the coming years, data center traffic will continue to see immense growth. Cloud… READ NOW
Semtech’s Tri-Edge™ GN2255 is the industry’s first analog IC solution enabling ultra-low latency, less than 1.5W module power, and performance for up to 10km reach for 50Gbps PAM4 SFP56 optical modules. Based on the proven Tri-Edge CDR platform qualified in data center applications, the new solution delivers the cost effectiveness, small footprint, low power, ultra-low latency, and performance demanded by 5G front haul applications. The new Tri-Edge GN2255 enables 50Gbps PAM4 links that will double the bandwidth of currently deployed 25Gbps NRZ front haul links. Semtech’s introduction of the Tri-Edge 5G wireless IC will help support new 5G applications, including edge computing, enhanced mobile broadband and device streaming, and fixed wireless access (i.e., home Internet). Learn more about the product announcement here.
Earlier this year, Evaluation Engineering (EE) spoke with Raza Khan, senior marketing manager in Semtech’s Signal Integrity Products Group to discuss industry trends and the new Tri-Edge 5G wireless product.
Integrating 5G Into Wireless InfrastructureSemtech’s Tri-Edge™ GN2255 is the industry’s first analog IC solution enabling… READ NOW
Semtech has recently returned from ECOC, one of the optical industry’s most anticipated and widely attended events of the year. The event hosts more than 6,500 scientists, researchers and industry experts from the field of high performance optical communication. Semtech’s booth was once again a hub for interested visitors eager to learn more about Semtech’s leading optical platform, and discuss current trends.
Semtech and Open Eye MSA Redefine Optical…Semtech has recently returned from ECOC, one of the optical industry’s most anticipated… READ NOW
The dual-density version of the Quad Small Form-factor Pluggable (QFSP) Multi-Source Agreement (MSA) module standard looks set to be the rule for new line-cards, following a raft of demonstrations and alpha module tests in 2018. The hidden message of the QSFP-DD craze is not the physical characteristics of the module itself, but what it says about the turn to advanced signaling methods. Half a decade ago, QSFP28’s arrival heralded the coming dominance of 25Gbps electrical channels using NRZ signaling. Now, QSFP-DD, and its larger cousin, the octal SFP or OSFP, use PAM4 signaling. This most often uses 50Gbps channels, but QSFP-DD is flexible enough to use eight-channel interfaces in a variety of implementations: 25G x 8 for 200Gbit Ethernet, 50G x 8 for 400Gbit Ethernet, and perhaps some early 100G x 8 for a pre-standard 800Gbit Ethernet.
Optics MSA: QSFP-DD Puts PAM4 Signaling in…The dual-density version of the Quad Small Form-factor Pluggable (QFSP) Multi-Source… READ NOW
Slow but steady advances were made in 2018 in on-board optical links for chip-to-chip and chip-to-module interfaces. The integrated-optics revolution, anticipated three years ago when the Consortium for On-Board Optics (COBO), of which Semtech is an associate member, was launched, has been replaced by a realization that only slow migration from traditional pluggable modules will serve the data center, whether within a single line card or server blade, or between cards and racks. Even as recent as a year ago, COBO members began rethinking and changing their tune to stress coexistence of pluggable MSA modules and the embedded on-board modules chosen by COBO as a de facto standard.
A Revolution in Embedded Optics, or a Partner to…Slow but steady advances were made in 2018 in on-board optical links for chip-to-chip and… READ NOW
The 44th installment of the European Conference on Optical Communication (ECOC) Exhibition recently concluded in Rome, Italy. At the conference, Semtech featured several products for the critical hyper-scale data center and 5G wireless markets. The technologies demonstrated by Semtech from its diverse portfolio of Optical solutions include the ClearEdge® CDR platform for low-cost 25G SFP28 modules that will be an essential component of the 5G infrastructure build out. Additionally, Semtech demonstrated its new line of Tri-Edge CDRs and FiberEdge™ linear Physical Media Dependent (PMD) devices that will help drive current Cloud data center build outs.
5G and Data Centers: Signal Integrity TrendsThe 44th installment of the European Conference on Optical Communication (ECOC)… READ NOW