SI5347C-B-GMR

The SI5347C-B-GMR is a programmable non-volatile self-contained multi-output clock generator featuring three to eight outputs and configurable frequencies ranging from as low as 33 MHz to as high as 322 MHz. These outputs can be used for various signaling scenarios. Its versatile range of frequencies and output drive strength makes it suitable for a variety of applications. This makes it ideal for a range of 3G/4G mobile radio applications, low jitter clock signal distribution, and PLL-based frequency synthesizers.

The SI5347C-B-GMR includes integrated oscillators and pre-programmed dividers. This allows users to quickly and easily configure the device according to their specific needs. The configuration can be done through an industry standard I2C serial interface. The SI5347C-B-GMR is programmed with a simple load and store command through the I2C interface. The device can also be pre-configured with a wide range of common frequencies to speed up the programming process.

The SI5347C-B-GMR also supports spread-spectrum functions to ensure electromagnetic compatibility (EMC). This allows the device to reduce EMI and RFI output levels. The integrated tracking loop feature supports both analog and spread-spectrum clock outputs, allowing the device to maintain very low jitter performance even when the output frequency is changing. The SI5347C-B-GMR is also able to produce clock signals with ultra-low jitter without needing an external PLL.

The working principle of the SI5347C-B-GMR is based on a crystal oscillator, a tracking loop, and a clock generator circuit. The crystal oscillator feeds a reference signal to the tracking loop which tunes in the desired output frequency. The clock generator circuit then creates the clock signals with the desired frequencies and drive strengths. The clock generator circuit is capable of producing multiple clock outputs of different frequencies while ensuring very low levels of jitter.

The SI5347C-B-GMR is a versatile device that is suitable for a variety of different applications. It can be used to generate multi-frequency clock signals for 3G/4G mobile radio equipment, low jitter clock signal distribution for network systems, and PLL-based frequency synthesizers for sensitive radio applications. The device offers a wide range of frequencies, configurability, and very low jitter performance.