SI5321-H-GL

The SI5321-H-GL, a clock oscillator module from Silicon Labs, is a cost-effective, yet feature-rich solution for the most challenging system clocking applications. The clock generator module offers fractional-N (f-N) and integer-N PLL technology to enable 50ps jitter performance and greatly reduce external components. The SI5321-H-GL is ideal for datacom, broadcast and consumer applications, along with optical modules, test equipment and base stations.

The SI5321-H-GL consists of an input clock source, a PLL, a voltage controlled crystal oscillator (VCXO) and a clock generator. The device comes with two clock outputs, each capable of generating any one of the device\'s 4 operating frequency ranges. Each output is synchronized to the input clock, ensuring that noise and other issues are minimized.

The SI5321-H-GL supports frequency synthesis and clock generation within the range of 12 kHz to 200 MHz with low phase noise, low jitter and wide bandwidth. The fractional-N phase-locked loop (PLL) allows the device to accurately synthesize frequencies with high accuracy and wide dynamic range. The PLL architecture also allows the device to change operating frequency incrementally with no hysteresis or noise interference.

The pulse width modulated (PWM) output can drive an external load directly, with no need for external buffering or power supply. The output frequency is based on the input reference clock, the current operating frequency, and the PLL bandwidth. The device helps designers save cost and space by reducing the amount of components needed for clocking in data communications, broadcasting, consumer electronics and other applications.

The SI5321-H-GL features dual-channel clock outputs that are independently configurable. Both outputs can support a wide range of frequencies, including standard xtal frequencies in the range of 12 kHz to 200 MHz. The outputs can be configured to support a range of applications, such as triple frequency clock, four-decker architecture, or DPLL applications. The outputs are synchronized to the input clock, and will track the phase and frequency of the input clock even in the presence of jitter.

The SI5321-H-GL clock generator module also offers a wide range of features to enhance system performance. The device comes with a low-power mode, a wide frequency range, a fast lock time, and a high-performance fractional-N synthesizer. The device also features a wide range of input reference clock sources and control options, along with a wide range of adaptively programmable output buffer strengths.

Due to its wide range of features and high performance clock generation capabilities, the SI5321-H-GL is an ideal solution for network/data communications, broadcast, consumer electronics and other applications. The device reduces the amount of components needed for clocking, saving both cost and space. The PLL architecture ensures high accuracy, wide dynamic range and reduced jitter, while the fractional-N technology provides superior accuracy and performance.