SI5338C-B02077-GMR

The Silicon Labs SI5338C-B02077-GMR is a low jitter clock generator device designed specifically for use in applications requiring high-accuracy clocking. The device is capable of generating clock frequencies up to 266 MHz with a variety of output formats and programmable jitter attenuation. It can be used to generate frequencies in the sub 1 to 10MHz range necessary for microcontroller and digital signal processor applications, as well as higher frequencies such as those used in wireless communications.

At the heart of the SI5338C-B02077-GMR is a power-efficient, differential frequency synthesizer that features an all-digital forward-converter, high-accuracy frequency multiplication and division, and an integrated output jitter attenuator. The device is highly configurable and uses a 4-wire serial interface, allowing for a wide range of frequency, power, and jitter requirements to be met. The device can also be programmed and configured externally using standard I2C commands.

The SI5338C-B02077-GMR provides flexible and cost-effective clock generation for applications where precision clocking is critical. The device is ideal for semiconductor test equipment, networking and storage systems, base station synchronization, and general clock-frequency generation. The easy programming and high flexibility of the device make it well suited for prototyping or small-quantity production.

The SI5338C-B02077-GMR operates from a single +3.3V supply and clock input frequencies up to 200 MHz. Its programmable output configurations include differential- and single-ended LVDS, LVPECL, and SSTL2 outputs. Input clock multiplication, division, and output frequency resampling are also available and can be used to generate higher frequency outputs and output frequencies that differ from the input. The device also supports programmable output-jitter attenuation, allowing clock signals to be generated with exceptionally low jitter characteristics.

In order to maintain high-levels of performance, the SI5338C-B02077-GMR uses a combination of a low noise PLL, an N-path filter, and an optional loop filter. In normal operation, the PLL is locked and the clock-synthesizer is driven by a low noise, high frequency reference clock. The PLL, N-path filter, and optional loop filter form the frequency divider chain, which is then used to derive the output frequency. The N-path filter is critical for ensuring that jitter from the reference clock does not pass through to the output clock. Additionally, the optional loop filter helps to reduce jitter further and improve stability.

The SI5338C-B02077-GMR is a low jitter clock generator that is specifically designed to suit the needs of applications requiring high-accuracy clocking. It can be used to generate multiple output frequencies up to 266 MHz and features programmable jitter attenuation and a wide range of output formats. This makes the device ideal for networking and storage systems, base station synchronization, semiconductor test equipment, and general clock-frequency generation.