Texas Instruments unveils advanced signal conditioners

Manufactured using TI’s high-performance BiCMOS SiGe process technology, these new signal conditioners deliver the industry’s highest signal reach performance at less than 6-mW per gigabit.

“As transmission rates increase, signal integrity requirements become more stringent,” said Linley Group Senior Analyst Jag Bolaria. “Highly integrated ASIC and ASSP solutions with shrinking transistor geometries, lower voltage rails and lower output voltages further compound the problem, making systems more susceptible to random jitter and crosstalk interference. TI’s new retimer and repeater products resolve these complex signal integrity impairments while consuming low power.”

Key features and benefits of the families include: extended reach to exceed 50+ inches of FR-4 backplane or 20 meters of 26-AWG copper cable; 36-dB input EQ and 12-dB output de-emphasis (DE); a multi-tap decision feedback equalizer (DFE); clock and data recovery (CDR) with internal clock synthesis and repeaters that consume 65-mW per channel; retimers with CDR consume 150-mW per channel as well as a reduced bill of materials (BOM) cost and simplified system design.

These signal conditioners are used to drive optical and direct-attach passive copper cables in latency-sensitive, front-port line cards, while meeting SFF8431 (SFP+) specifications. They also can be used to compensate for loss and crosstalk in backplanes, and reduce gauge thickness in active copper cable assemblies. Offered as a pin-compatible IC family, system designers can choose from repeaters (EQ and DE driver), retimers (EQ, CDR and DE driver), and advanced retimers (EQ, CDR, DFE and DE driver) to achieve the desired link performance and system cost without having to redesign their board.

To support redundancy and fail-over applications, TI offers new 10.3G and 14.2G mux/buffers that support two- and four-port switching capability. Both devices support 10G-KR transmit link training.

Texas Instruments

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