SI5335D-B08368-GMR

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The SI5335D-B08368-GMR is a low-power, low-skew, small-footprint clock generator capable of generating up to four clock outputs—two independent high-precision PECL (Positive ECL) clocks and two differential LVCMOS (LVTTL-compatible) clocks. This clock generator is a key component in clock management applications.

The SI5335D-B08368-GMR is a frequency synthesizer, and its main function is to generate precise frequency and signal outputs from an input clock or crystal oscillator. It can also be set to “spread spectrum” mode, where it varies the signal slightly to reduce EMI in the system. In addition, the clock generator can be used in environments where signal jitter must be minimized, such as high-speed communication (SERDES) systems.

The SI5335D-B08368-GMR has a wide range of applications in cable systems, communication infrastructure, and embedded computing applications. In cable systems, the SI5335D-B08368-GMR can be used to generate the IF reference clock required in QAM applications. In embedded computing applications, the SI5335D-B08368-GMR can be used to generate the PCIe and memory clock signals, as well as the reference clocks for high-speed serial data transmission. In communication infrastructure applications, the SI5335D-B08368-GMR can be used to generate the reference clock for high-speed networking.

The SI5335D-B08368-GMR is powered by the Si53xx family of clock synthesizers, which feature a programmable or fixed link between the on-chip voltage-controlled oscillator (VCO) and the output dividers. This allows for a wide range of frequencies to be generated, with programmable spread spectrum for improved EMI performance.

The SI5335D-B08368-GMR supports up to four PECL oscillators and variable duty cycle outputs. It also has “pulse swallow” feature for automatic synchronizing of the oscillators, ensuring reliable clock signal integrity even in noisy environments. The clock outputs can be divided by up to 4,096 (2^12), allowing for a wide range of output frequencies. Additionally, the SI5335D-B08368-GMR uses digital phase lock loop (PLL) technology, which offers excellent phase noise immunity.

In addition, the SI5335D-B08368-GMR features automatic gain control and a fully integrated power-on reset circuit to ensure reliable power-up and immediate startup. This allows the device to remain stable even in harsh environments. The device is also provided with an integrated I2C interface for easy monitoring and control.

In summary, the SI5335D-B08368-GMR is an ideal choice for clock management applications requiring low power consumption, low jitter and high phase noise immunity. The device is used in applications from cable systems, communication infrastructure, embedded computing and many other industries. It can be used to generate accurate and stable frequency outputs from an input clock, crystal oscillator or from its own VCO, and it also supports spread spectrum for improved EMI performance. Its integrated I2C interface makes it easy to configure, monitor and control.

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