SY89833ALMG

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The SY89833ALMG is a 3.3V LVPECL/LVDS/HCSL/CML fanout buffer suitable for high-speed clock and data applications. This device features a low additive jitter of 0.2ps typical and a cycle to cycle jitter of 0.3ps typical. It features multi-topology outputs including LVPECL, LVDS, HCSL and CML, as well as an enable feature for easy power down. This device has a wide frequency range from 10MHz to 6.25GHz; and is suitable for applications including gigabit ethernet and OC-48 SONET.

Application

The SY89833ALMG is suitable for general purpose applications. It is targetted at clock/data distribution networks and can be used as a signal souce for medium to high-speed serial links, such as SATA and PCI Express. Due to its low jitter performance and wide frequency range, it is suitable for a variety of applications ranging from optical communications to backplane. It is widely used in data centers, routers/switches, storage and server systems, video and image processing systems, telecommunication multi-service access nodes,and automotive infotainment systems.

Working Principle

The SY89833ALMG is a differential fanout buffer that can drive single-ended signals such as LVDS, HCSL, CML, and LVPECL. It has a wide frequency range of 10MHz to 6.25GHz, and its low jitter performance make it suitable for a variety of applications. The device operates by using a differential input signal. A differential clock input is processed by a low-noise first-stage inversion amplifier. The differential input is then sent to an output driver which is capable of driving either single-ended or differential signals.

The SY89833ALMG features an enable pin which is used to shut off the outputs. This allows for a "power down" state which is useful when the device is not in use. The device is also capable of spread spectrum clocking (SSC), which is useful for reducing EMC emissions. The device features 8 outputs and one input, and is capable of operating over a wide-range of operating conditions including temperatures and voltages.

Conclusion

The SY89833ALMG is a 3.3V LVPECL/LVDS/HCSL/CML fanout buffer suitable for high-speed clock and data applications. It offers low additive jitter performance, an enable pin for power down, a wide frequency range of 10MHz to 6.25Ghz, and 8 outputs. It is suitable for a variety of applications ranging from optical communications to backplane, and is widely used in data centers, routers/switches, storage and server systems, video and image processing systems, telecommunications multi-service access nodes, and automotive infotainment systems.

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