SI5344H-C05139-GM

The SI5344H-C05139-GM is a cost-sensitive, low jitter clock generator targeted at high-performance networking, telecommunications and broadcast applications. This clock generator IC provides four different outputs, each of which is programmable for different frequencies and phases, making it ideal for systems requiring multiple clocks of different frequencies. One of its greatest features is the support for Wide Input Frequency Range, which allows it to generate output clocks from internal or external sources with frequencies ranging from 25 MHz to 800 MHz.

The SI5344H-C05139-GM features an integrated Frequency Synthesizer which enables it to be optimized for different applications. The integrated PLL can be used to generate clocks ranging from 25 MHz up to 800 MHz with extremely low jitter. This makes it ideal for multimedia applications such as HDTV, where low jitter is required for high picture quality. In addition, it has a patented Adaptive Loop Bandwidth (ALB) technology which helps reduce overall system power consumption by automatically adapting the loop bandwidth over a wide range of operational frequencies.

The clock generator also has an integrated low power standby mode, allowing it to switch between a low power, low jitter clock to a higher power, high jitter clock, eliminating the need for power-down and power-up cycles. This feature makes the SI5344H-C05139-GM more reliable and greatly reduces the cost of power management in applications where frequent power cycling is required.

At the heart of the clock generator is an oscillator which is programmable in a range between 25 MHz and 800 MHz. The oscillator outputs one clock, the primary clock which is then fed into a phase locked loop (PLL) and multiplied up to the desired output frequency. The PLL has two inputs, one from the oscillator and the other from an external clock source, allowing the clock generator to operate in either free-run or frequency-locked mode. In frequency-locked mode, the clock generator locks to an external reference frequency and follows it, eliminating the need for downstream synchronization.

The SI5344H-C05139-GM also supports an adaptive loop bandwidth feature, which allows it to reduce system power consumption by adapting the loop bandwidth depending on the input frequency. This helps reduce overall system power consumption without sacrificing performance. Finally, the clock generator has an integrated jitter attenuator which helps reduce the jitter of the output clocks, further enhancing system performance and ensuring high quality results.

In conclusion, the SI5344H-C05139-GM is a cost-effective, low jitter clock generator targeted at high-performance networking, telecommunications and broadcast applications. Its support for wide input frequency range, integrated frequency synthesizer, and adaptive loop bandwidth make it ideal for applications requiring multiple clocks of different frequencies, while its low power standby mode helps reduce system power consumption without sacrificing performance. In addition, its integrated jitter attenuator ensures high quality, reliable results.