SI5335B-B05728-GM

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The SI5335B-B05728-GM is a clock generator and PLL (Phase Locked Loop) device that utilizes Silicon Labs’ cutting-edge high-performance CMOS process technology to deliver a low-jitter, precision clock signal. This particular device has an input frequency range from 8.192MHz to 170MHz, whilst capable of generating 16-pin synthesized output frequencies to cover a range of 160 MHz to 658 MHz. The SI5335B-B05728-GM can also be used to generate clock signals with differential outputs.

Application field

The SI5335B-B05728-GM is widely used in the communications, telecommunications, and military/aerospace industries, and is primarily employed as a clock generator or jitter attenuating device in applications such as network routers and switches, base station controllers, communications ASICs, transmission line tester systems, and high performance clock distribution units. Besides, the SI5335B-B05728-GM is often used to generate clock signals for networking protocols such as Ripple Clock, Serial Rapid IO, XAUI and pluggable transceivers for optical communications.

Working principle

The SI5335B-B05728-GM utilizes a variable precision PLL that is based on a digital frequency synthesizer architecture. This enables the device to generate output clocks up to 658MHz. The internal PLL includes a highly-configurable charge pump with low-noise reference oscillators, a programmable fractional-N/integer-N frequency synthesizer and a dual modulus prescaler. The device also has an output clock multiplexer, an input loop filter, and a configurable delay line. Furthermore, it includes an on-chip LDO, an analog period and transition monitor with level detection and general-purpose digital control/status pins.

The SI5335B-B05728-GM has an ultra-low jitter and provides a clock synthesis capability of a programmable modulus, allowing for a wide range of synthesized frequencies. Additionally, it features fast settling times, minimized reference clock and input frequency spread, and improved jitter performance. The SI5335B-B05728-GM also features better than 6ps RMS jitter from 167MHz down to 27 apiece frequency bins, offering excellent jitter performance for demanding applications.

Conclusion

The SI5335B-B05728-GM is an advanced clock generator and PLL device ideal for applications such as high-performance clock distribution units, communications ASICs, and base station controllers. Utilizing Silicon Labs’ cutting-edge high-performance CMOS process technology, the SI5335B-B05728-GM can generate 16-pin synthesized output frequencies up to 658MHz with ultra-low jitter. The device also includes a highly-configurable charge pump, a fractional-N/integer-N frequency synthesizer, a dual modulus prescaler, and an output clock multiplexer. Finally, the SI5335B-B05728-GM is particularly suitable for the communications, telecommunications, and military/aerospace industries.

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