SI32261-C-GM

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The SI32261-C-GM is an integrated circuit for use in communication applications. The circuit is an integrated single-chip clock generator and phase-locked loop (PLL) system providing phase-coherent frequency multiplication, phase alignment and frequency control. It is part of the Synchronous Communications System (SCS) used in synchronous optical networks (SONET) and Synchronous Digital Hierarchy (SDH) systems.

The SI32261-C-GM is specifically designed for use in optical networking devices. It enables the precise synchronization of several optical networks by converting external reference clocks into synchronized PLL outputs. It is capable of supplying two pairs of synchronized clocks at a frequency of up to 8 GHz to multiple networked devices, allowing for precise control of clocks in both hardware and software.

The SI32261-C-GM has an integrated programmable PLL and a self-timed clock multiplier that allows for precise synchronization of several optical networks. The circuit features a selectable input frequency range of 10 MHz - 2.5 GHz, covering a broad range of input signals. It can also provide an adjustable output frequency of 4 MHz to 8 GHz with excellent phase-noise performance and low total harmonic distortion (THD).

The SI32261-C-GM features a built-in temperature-stabilized crystal oscillator, allowing for excellent frequency accuracy and stability over wide temperature ranges. The integrated PLL device includes a voltage-controlled oscillator (VCO) for easy frequency control, and a phase-locked loop (PLL) for phase locking and synchronization of the output clock signals. Additionally, the SI32261-C-GM includes programmable filters for further customization and optimization of system performance.

The SI32261-C-GM provides several features that make it suitable for use in telecom and telecom-related applications. The synchronization capabilities help ensure consistent communications between multiple devices. The integrated frequency doubling and temperature-stabilized crystal oscillator allow for precise frequency control. Additionally, the programmable filters help reduce phase noise, enabling reliable transmission of signals over long distances.

The SI32261-C-GM is a versatile integrated circuit that offers a wide range of features and capabilities. It is suitable for use in a variety of telecom and telecom-related applications, including SONET/SDH systems, optical networking devices, and more. The integrated PLL and filters allow for precise synchronization and frequency control, while the temperature-stabilized crystal oscillator ensures accurate and reliable signal transmission over long distances.

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