New company unveils optical interface ICs

April 9, 2002--SiGe Semiconductor today entered the optoelectronics market, unveiling the first three products in its LightCharger portfolio of optical interface ICs. The SE1030 and SE1031 transimpedance amplifiers (TIAs) and the SE1230 automatic gain control (AGC) amplifier are designed to improve sensitivity and noise performance of fiber optic modules used in cross connects, routers, and modems that support OC-48 and STM-16 transmission rates.

Apr 9th, 2002

April 9, 2002--SiGe Semiconductor (www.sige.com) today entered the optoelectronics market, unveiling the first three products in its LightCharger portfolio of optical interface ICs. The SE1030 and SE1031 transimpedance amplifiers (TIAs) and the SE1230 automatic gain control (AGC) amplifier are designed to improve sensitivity and noise performance of fiber optic modules used in cross connects, routers, and modems that support OC-48 and STM-16 transmission rates.

The 2.5-Gbit/sec components are the first products to sample from a portfolio of TIAs, laser drivers, and post amplifiers provided to SiGe Semiconductor under an exclusive license agreement with a major telecommunications manufacturer. The complete portfolio includes 11 devices in various stages of design and production, which will enhance reliability, flexibility and speed of network equipment operating from 155 Mbits/sec to 10 Gbits/sec, according to the startup.

SiGe Semiconductor will also take ownership of design and test equipment, which, when combined with the company's volume manufacturing capabilities and synergistic sales channels, will allow rapid delivery of products to market. All 11 devices will be sampling under the LightCharger brand by the end of 2002.

"We are entering the optical market with several advantages over our competitors that will ensure our position among market leaders," said Jim Derbyshire, president and CEO, SiGe Semiconductor. "Since we are not vertically integrated, customers can align closely with our design teams without competitive threat. Also, the optical ICs fit within our existing skills, infrastructure and supply chains, allowing us to quickly deliver 2.5-Gbit/sec products to customers. The 2.5-Gbit/sec devices will produce revenue this year, while we leverage our expertise to deliver 10-Gbit/sec components for next- generation equipment."

SiGe's SE1030 and SE1031 are fully integrated TIAs designed for low-noise front-end receiver systems up to 2.5-Gbit/sec. The devices incorporate an AGC architecture that ensures the output from the front-end does not saturate the output driver stage that follows. This enables sensitivity for input signals up to 2.6 mA peak, as well as optimized noise performance with a sensitivity of -26 dBm for 10(-10) bit error rate. The SE1030 has a power dissipation of 170 mW, while the SE1031 typically operates at 110 mW.

The AGC amplifier follows the TIA in the receive chain, providing the amplification required to boost input signals for the serializer-deserializer. With small signal gain of 23.5 dB, and a noise figure of less than 12 dB, the SE1230 optimizes signal control in telecom and datacom applications. No additional components are required for the AGC function, thereby reducing the BOM, board space, and production costs. The device is also optimized for low power consumption, with 230-mW power dissipation.

All three devices can be configured for single-ended or differential operation, enhancing flexibility to accommodate application-specific wire bond options. Each operates using a single 3.3-V supply.

The SE1030 and SE1031 are provided in bare die form, priced at US $4.85 in 10,000 quantities. The SE1230 is packaged in a standard 32-pin LFQP that measures 5 sq. mm, priced at US $14.50 in 10,000 quantities. All three devices are available now in production volumes.

An evaluation kit is available, and all devices are supplied with full documentation including data sheets and schematics.

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