SI5334A-B07288-GMR

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The SI5334A-B07288-GMR is a clock with an optimized design for GPS-Disciplined Clock (GPSDC) applications. It is an oscillator specifically designed for use in satellite or Global Navigation Satellite Systems (GNSS) receivers as well as other applications where high accuracy timing is required. The SI5334A-B07288-GMR consists of a crystal oscillator, a precision oscillator amplifier with adjustable gain, a phase-locked loop (PLL) and an FET-based reference or source buffer amplifier. The clock’s frequency accuracy and stability are excellent, designed for applications that require superb performance, accuracy, and reliability.

To take advantage of its exceptional timing accuracy, the SI5334A-B07288-GMR includes an integrated temperature compensation circuit, which allows the oscillator to compensate for temperature variations to maintain its accuracy. The temperature compensation is managed by an external temperature sensor such as an NTC, providing accuracy up to ±0.05 ppm. The PLL in the SI5334A-B07288-GMR allows it to synthesize a wide range of output frequencies and enables low jitter outputs.

The SI5334A-B07288-GMR is optimally designed for serial applications, including MIL-STD-1553 and various SPI-based connections. It features selectable PLL input frequencies with frequency ranges from 21.4 kHz to 266 kHz and selectable output range from 500 kHz to 1 MHz. The SI5334A-B07288-GMR supports CMOS, LVPECL, CML, and LVCMOS outputs, and is available in a 14-lead manufacturer- mounted version. It also provides low power consumption, operating with currents of up to 300 µA, allowing it to be an economical choice for GPSDC systems.

The working principle of the SI5334A-B07288-GMR is based on its phase-locked loop and buffer amplifier design. The clock has an oscillator consisting of a quartz crystal for generating the reference signal. This signal is then amplified by the oscillator amplifier and sent to the phase-locked loop (PLL). The PLL takes the reference signal and compares it to a feedback signal, and it adjusts the reference signal accordingly to ensure that it remains in phase with the feedback signal. The output of the PLL is then sent to the buffer amplifier before being sent to the outputs.

The SI5334A-B07288-GMR is ideally suited for use in satellite or GNSS receivers, as well as other applications that require precise timing. Its high accuracy and excellent stability make it the perfect choice for applications such as industrial control, telecommunications, GPS tracking, and timing in distributed multi-hack systems. This clock is also optimally designed for serial applications and can be used in low power applications as it has very low current consumption.

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