AMCC enhances chipset for backplane applications

Feb. 21, 2001
Feb. 21, 2001--Applied Micro Circuits Corp., a provider of high-bandwidth silicon connectivity solutions for optical networks, announced the enhancement of the S7022 and S7025 chipset for 3.2 Gbps optical backplane applications.

Applied Micro Circuits Corp. (AMCC) [NASDAQ:AMCC], a provider of high-bandwidth silicon connectivity solutions for optical networks, announced the enhancement of the S7022 and S7025 chipset for 3.2 Gbps optical backplane applications. The S7022 is a 3.2 Gbps Quad Vertical Cavity Surface Emitting Laser (VCSEL) driver and the S7025 is a 3.2 Gbps Quad transimpedance amplifier (TIA), with integrated limiting amplifier and Loss of Signal (LOS) detection circuitry. The chipset can be used in optical backplane links up to 300 meters for rack-to-rack, chassis-to-chassis, and board-to-board connectivity. These products were developed to address low power, low cost and small form-factor requirements, provide exceptional performance for parallel fiber and WDM modules, and were designed for compliance with IEEE�s 802.3z specifications. Moreover, this chipset can be used with other AMCC devices to provide flexible optical backplane solutions in applications ranging from OC-3 (155 Mbps) to XAUI (3.2 Gbps, eXtended Attachment Unit Interface for 10-gig Ethernet Standard from IEEE) rates.

AMCC has partnered with major optical module manufacturers in order to provide these complete solutions to end customers. This low cost module technology will be deployed in next generation high-density systems that require the transfer of many gigabits between port cards.

The S7022�s level of integration reduces the number of external components needed, thus saving board space and power for high-density small form-factor designs. Offering a unique low EMI output design, the S7022�s four parallel channels utilize AMCC�s VCSEL-Trac technology, producing shape-controlled drive current waveforms to a VCSEL array, thus enhancing high-speed performance and flexibility to drive VCSELs with varying optical characteristics. Further, the microcontroller interface provides production automation allowing for easy and re-workable module configuration, thereby reducing module cost due to VCSEL scrap.

The S7025 also operates from a single+3.3V supply and provides increased input sensitivity with a high 10K volts per amp transimpedance for direct drive to external SERDES and a 6 to 500 µA peak-to-peak input current range with minimal duty-cycle distortion for improved input signal detection. The device also offers differential CML outputs for enhanced drive performance.

Both 3.2 Gbps devices are scheduled for production in March. The S7022 is priced at $30 and the S7025 at $39, in quantities of 10,000 in die form.

About AMCC:

AMCC designs, develops, manufactures, and markets high-performance, high-bandwidth silicon solutions for optical networks. For more information, visit www.amcc.com.

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