DS91M124TMAX

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The DS91M124TMAX is a high-speed, low-power, dual-channel retiming buffer designed for short-reach serial links operating up to a 25 Gbps data rate. As a member of an interface subcategory called signal buffers, repeaters, splitters, it is used to solve critical interface problems.

It offers equalization, retiming, level-shifting, and line-termination functions. It is designed for a variety of EEPROM, NAND Flash, and CRAM applications where clocking accuracy, signal integrity, and data transfer rates are critical to achieving desired performance.

The DS91M124TMAX is a two-channel, non-inverting retiming buffer intended to extend the reach of high speed links in multiple lane, half-duplex applications with data rates ranging from 800 Mbps to 25 Gbps. With a total eye-width of up to 70ps, this device is able to extend serial link lengths by eliminating timing errors due to interlane delays and overvoltage conditions.

The DS91M124TMAX features two separate input pairs, each associated with a respective channel of retimed output. Each channel has a set of eight input signals (four differential data pairs) used for retiming and line termination. Also, the DS91M124TMAX provides equalization, level-shifting and line-termination on each of the two channels.

Each of the differential input pairs are amplified through equalization gain blocks to enable a link to continue until eye crossover occurs. This equalization feature is implemented to enable the device to match varying line impedances, especially in high speed multi-drop systems.

The retiming capability of the device allows the output of the equalized signal to be retimed to a reference clock input. This retiming function is controlled by a single-pole double-throw (SPDT) pin. The retiming block helps to reduce errors due to timing jitter or data transitions.

Additionally, the DS91M124TMAX features level-shifting capabilities on each of the two channels. This level-shift function allows the device to convert a voltage level (from 0.8 V to 3.3 V) without sacrificing performance or link integrity.

The DS91M124TMAX also provides line-termination on each of the two channels. This line-termination feature is used in order to reduce signal reflections and help the link achieve its desired signal integrity.

Overall, the DS91M124TMAX is designed to allow an engineer to build a system that is highly reliable, cost effective, and which can meet tight time-to-market demands. With its extended reach, equalization, retiming, level-shifting, and line-termination functions, it is the perfect choice for building robust serial link systems.

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