SI5335B-B01595-GMR

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The SI5335B-B01595-GMR from Silicon Labs is a low-jitter, wide frequency range Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers with a broad range of applications. The device operates up to 2GHz, suitable for a variety of communication protocols including WiFi, Fiber, Ethernet and Ethernet-like applications. The SI5335B-B01595-GMR is the most cost effective and reliable choice for those seeking an efficient clock generating solution with excellent noise rejection, low jitter and high durability.

This device consists of an integrated Phase-Locked Loop (PLL) that multiplies a reference clock, in this case a crystal oscillator, up to the output frequency range specified by Silicon Labs. This process, called a “frequency multiplier”, is how the SI5335B-B01595-GMR is able to support a wide range of frequencies, from 12KHz up to 2GHz. This performance is achieved with extremely low noise levels and close to no jitter at the output, which makes the device suitable for applications requiring high precision.

The SI5335B-B01595-GMR can be configured for various output frequencies, slew rates and output voltage levels. The device is equipped with several programmable interface pins (pins 2, 3, 6, 7, 8 and 10) to allow the user to customize it according to the requirements of the application. Multiple banks of pre-programmed output frequencies are provided by Silicon Labs, as well as multiple programming options using the built-in I2C bus. A choice of crystal oscillator or external reference clock is also supported.

The SI5335B-B01595-GMR supports output frequencies up to 1.2GHz without external components, and up to 2GHz with the use of external components, such as a driver and an isolation transformer. The external components allows the user to fine-tune the device for use at even higher frequencies. When an external reference is used as the input reference, it must be connected through a coaxial cable with an impedance of 50Ω. The device supports a typical voltage controlled oscillator (VCO) range of 0.2V to 2.3V.

The PLL inside the SI5335B-B01595-GMR consists of a voltage-controlled oscillator (VCO) and a phase/frequency detector (PFD). The PFD receives a signal from the reference clock and compares it to the frequency produced by the VCO. If a mismatch is detected, the PFD signals the VCO to adjust its frequency until the reference signal and the VCO’s output match. This process continues dynamically, monitoring and adjusting the two frequencies over time, which enables the device to maintain a low jitter output.

In addition to its low-jitter operation, the SI5335B-B01595-GMR also features an integrated low-jitter buffer for improved signal integrity and output noise margin. This buffer isolates the device’s output signal from other sources of noise, making it ideal for applications in high noise environments, such as clock signals in automotive, industrial and medical applications. The buffer also provides drive strength adjustment, allowing the user to optimize the output signal for their application.

The SI5335B-B01595-GMR is an excellent choice for any application that requires a low jitter, wide frequency range Clock/Timing - Clock Generators, PLLs and Frequency Synthesizers. With its wide operating frequency range, robust design and excellent performance, the SI5335B-B01595-GMR from Silicon Labs is a reliable and cost-effective solution for all clock generation needs.

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