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Micrel rolls out additional backplane management solutions

Posted: 14 Jul 2005 ?? ?Print Version ?Bookmark and Share

Keywords:micrel? sy58620l? sy58621l? transceiver? receiver?

Micrel Inc. expanded its lineup of backplane management solutions. The new products include the SY58620L and SY58621L, which are DC-to-4.25Gbps integrated transceivers (receiver and transmitter), and the SY58626L and SY58627L, which are a DC-to-6.4Gbps dedicated transmitter and receiver, respectively, with equalization and pre-emphasis.

"Our new transceiver (SY58620/21L) backplane and cable management solutions provide a new level of integration for serial applications with the inclusion of a receiver, a transmitter, internal termination and loopback capability in a small, 4-by-4mm footprint,&quot said Thomas S. Wong, VP for Micrel's high bandwidth products. "Additionally, the SY58626L is the industry's first transmitter to provide individual control of pre-emphasis magnitude and duration to optimize pre-emphasis levels for a given application."

The SY58620/1L transceivers guarantee AC-performance up to 4.25Gbps over the full industrial temperature range and 3.3V 10 percent supply voltage range, while saving board space and component count by offering an integrated loopback mode for system diagnostics. The SY58620L transmitter features a programmable, differential CML compatible output with a programmable swing range between 100mV and 400mV with 50ohm internal source termination to minimize round trip reflections. The SY58621L transmitter output is differential LVPECL-compatible with a programmable swing range from 100mV to 800mV. The receiver for both devices accept any differential, AC-coupled input signal down to10mV (20mVp-p), and provides a Loss of Signal (LOS) alarm when the input signal is invalid. Both parts are offered in a 4-by-4mm footprint, 24-pin MLF (QFN) package.

The SY58626L transmitter and SY58627L receiver feature a distinctive input stage that accepts AC- or DC-coupled input signals. Both products offer guaranteed throughput from DC-to-6.4Gbps. The SY58626L transmitter includes a new programmable pre-emphasis feature, while the SY58627L receiver accepts a degraded, differential input signal as low as 10mV and recovers the signal with an equalizer front-end. The equalizer is programmed in four discrete levels that correspond to typical FR4 transmission lengths between 9- and 36-inches. Both parts come in a 5-by-5mm footprint, 32-pin MLF (QFN) package.

All products will be available for sampling this month (July 2005), with volume production scheduled in August 2005. Pricing starts at $5.76 for the SY58620L and SY58621L transceivers, and $7.40 for the SY58626L transmitter and SY58627L receiver. All prices are quoted in 1,000-unit orders.




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