SI5323-C-GMR

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The Silicon Laboratories SI5326-C-GMR is a single-chip, frequency-selective clock generator and programmable fan-out buffer. It integrates advanced integrated circuit technology in a compact package to provide basic clock generator, PLL, and frequency synthesizer functions. It can be used to provide frequency-stable, low-jitter output of any arbitrary frequency within the range of 1 Hz to 65.5 MHz.

The SI5326-C-GMR is based on a low power, low noise architecture that eliminates the need for active components such as oscillators and divider chains. It uses a programmable and highly flexible digital-controlled oscillator (DCXO) and integrated logic to generate a wide range of frequencies with excellent frequency stability and accuracy. The SI5326-C-GMR can be programmed to generate 8 differential or 16 single-ended outputs and each output can be programmed to a different frequency.

The SI5326-C-GMR uses a programmable set of parameters to generate the output frequencies. These parameters, including an input frequency, an output frequency select table and a frequency tolerance, are programmed into the device via a standard Serial Peripheral Interface (SPI) or I2C interface. The SPI or I2C interface can also be used to enable or disable the outputs, monitor system status, and configure device settings such as output enable or power down modes.

The SI5326-C-GMR supports both a single frequency mode and a multi-frequency mode. In single frequency mode, a single output frequency can be specified by programming the DCXO. In multi-frequency mode, multiple output frequencies can be specified and generated from the same input frequency. The user has the flexibility to program up to 8 different frequencies into the device, each of which can be further divided into divisions of up to 1/256. The SI5326-C-GMR also supports frequency shifting to adjust the output frequency as needed. Frequency shifting allows the output frequency to be shifted up or down in frequency in small increments, allowing the user to access frequencies that cannot be generated with a traditional programmable clock generator.

The SI5326-C-GMR includes integrated spread spectrum capabilities that offer improved performance in noisy environments. Spread spectrum technology works by rapidly phase shifting the output frequency around the center frequency that is programmed into the device. This phase shifting reduces EMI/RFI interference and reduces the chance of interfering with nearby systems.

The SI5326-C-GMR also includes integrated power management capabilities. This allows the device to be placed in a power down mode and wakes up again when enabled. There are also programmable output power levels that can be used to save power when the device is not used.

The SI5326-C-GMR has been designed for use in a variety of applications including frequency-selective clocks for wireless communications and digital systems, time synchronzation, embedded control systems, and synthetic test instruments. The device also provides a low power and low jitter solution for use in automotive and industrial applications.

In conclusion, the Silicon Laboratories SI5326-C-GMR is an ideal choice for generating frequency-stable, low-jitter output of any arbitrary frequency up to 65.5 MHz. It offers advanced integrated circuit technology and integrated power management, spread spectrum, and other features that make it a versatile and highly configurable frequency synthesizer or programmable clock generator for many different types of applications.

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