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AMCC SiGe chipsets target VSR, backplane apps

Posted: 06 May 2002 ?? ?Print Version ?Bookmark and Share

Keywords:s7032? s7035? s7023? s7026? vcesl driver?

Applied Micro circuits Corp. has announced the availability of the S7032 quad 10.7Gbps VCESL driver and S7035 quad 10.7Gbps transimpedance amplifier (TIA) that enable a total bandwidth of 43Gbps and are designed for VSR OC-768, quad OC-192 and 10GbE, and optical backplane applications.

The company is also offering the S7023 second-generation quad 3.6Gbps VCSEL driver and S7026 quad 3.6Gbps TIA with post amplifier chipset, offering >14Gbps of total bandwidth. Both devices are also XAUI-compliant, enabling optical backplanes for next-generation IP routers.

The SiGe chipsets provide connectivity between networking equipment for links up to 300m COs and data centers, as well as backplane connectivity. They also feature an ACJTAG interface, enabling the chipsets to verify module connectivity for better system level testability and lower integration costs for OEMs.

"These latest 3.6Gbps and 10.7Gbps introductions enable the deployment of larger, next-generation switch fabrics and provide higher optical backplane speeds for greater bandwidth density between data cards," said Paul Duran, AMCC's product marketing manager.

The S7032 and S7035 are designed to seamlessly interface with the company's OC-768 solution offerings, while the S7023 and S7026 chipsets can be used with AMCC's switch fabric solutions to provide flexible optical backplane connectivity in applications ranging from 155Mbps to 3.6Gbps data rates.

Both driver devices feature four parallel channels that utilize the company's VCSEL-Trac technology to produce individual shape-controlled drive current waveforms, thus, enhancing high-speed performance and flexibility to drive VCSELs with varying optical characteristics.

The modulation current, bias current, boost current, eye crossing, and power down features of the S7032 and S7023 are individually-programmable through a microcontroller serial interface.

Both TIAs operate from a single 3.3V supply and provide a 205A to 1.8mA (S7035) or 85A to 1mA (S7026) peak-to-peak input current range with minimal duty cycle distortion for improved input signal detection. They also feature individual loss of signal detection circuitry with squelch to prevent a false lock on the clock and data recovery unit.

The devices also offer programmable differential CML outputs for optimization of power dissipation when driving long and short board traces.





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