SI4123-BM

SI4123-BM is a programmable product within the family of Silicon Labs clock generators, PLLs and frequency synthesizers. It offers a broad range of features and is designed to cover various application areas.The SI4123-BM is a low noise, 3-output clock generator for low-power applications. With its powerful PLL, multiple output frequencies can be generated from a single input frequency. The product is designed for clock calibration, synchronous data transmission, and frequency-dependent signal transport from one piece of equipment to another.

The SI4123-BM provides a fully programmable clock generator. It has three outputs with a wide range of output frequency options, each with its own clocking, calibration, and divisor settings. This allows the device to generate more than one hundred output frequencies, making clock selection and synchronization tasks easy. The on-chip PLL provides clock up-conversion, down-conversion, and frequency synthesis.

The SI4123-BM also provides wide output range, low jitter and excellent accuracy and stability. The output signals are configurable in terms of frequency, duty cycle, and rise/fall times. All outputs are low-skew and synchronized, allowing them to be used together in accurately timing applications.

The working principle of the SI4123-BM is based on the interaction between the input frequency and the internal reference oscillator. The internal reference oscillator is used as the basis for all frequency and timing operations, such as multiplication, division, and phase lock looping. The clock generator takes the input frequency, multiplies it by a factor, and then divides it to produce the desired output frequency. The phase-locked loop (PLL) is used to regulate the frequency and phase of the output signals.

By using the on-chip calibration mode and programming Calibration Control Register(CCR), the SI4123-BM can adjust the phase and frequency of the output signals to reduce jitter, improve timing accuracy, and improve frequency stability. With the multiple output feature, the device can also be used for synchronization purposes.

The SI4123-BM is an advanced clock generator solution that is suitable for many applications, such as mixed-signal systems, USB devices, embedded systems, low-profile systems, and high-speed digital video projects. It provides a cost-effective solution to solving clock and timing challenges in a variety of applications.