SI5335A-B02062-GM

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The SI5335A-B02062-GM is a clock generator or phase-locked loop (PLL) frequency synthesizer that is designed for use in frequency-agile systems. The SI5335A-B02062-GM provides an output frequency range of 8 MHz to 420 MHz in a compact 8-pin, plastic surface-mount package. The design of the SI5335A-B02062-GM is optimized for applications where a high level of preciseness, frequency stability, and phase noise performance is required.

The SI5335A-B02062-GM clock generator offers the highest level integration in a single package. It includes multiple frequency select pins that enable the user to select any output frequency within a range of 8 MHz to 420MHz with only a 3V to 3.3V supply voltage. The device also features an integrated, low-noise voltage-controlled oscillator (VCO) with a range of 2MHz to 6GHz, which is used for multiplied output frequencies. The low power consumption makes the device suitable for use in battery-operated applications.

In the SI5335A-B02062-GM, an on-chip crystal oscillator provides a precision reference signal having a fraction of the jitter associated with a quartz crystal oscillator. The reference frequency is multiplied to generate a wide variety of user-selectable output frequencies, with programmable output drive levels, spread spectrum options, and enable/disable control available on each of the four easily accessible output pins. The device has a maximum power consumption of only 8 mW, which reduces the burden on thermal solutions, especially in cost-sensitive applications.

The SI5335A-B02062-GM clock generator uses a fractional-N frequency synthesizing technique that involves both an integer frequency divider and a programmable fractional divider. The fractional-N technique helps to minimize the spurious noise components and it is managed by a digital loop filter that uses update coefficients stored in EEPROM. These coefficients can be programmed at the factory to provide optimally designed filters tailored for specific applications.

The SI5335A-B02062-GM also features an internal clock divided for the control logic, which is used for control loop rate and digital control-loop filter update. This feature helps to ensure that the device achieves tight cycle-to-cycle jitter, which forms the base for superior reference clock jitter performance. The SI5335A-B02062-GM also features an adjustable loop bandwidth from 1MHz to 8 MHz to allow users to fine-tune the loop parameters for their specific application requirements.

The SI5335A-B02062-GM is a versatile, low-power and high-performance frequency synthesizer and has many applications in communication systems, RF instrumentation and modems that require a reliable clock source. The adjustable loop control parameters and spread spectrum enable users to further customize their systems to suit their specific application requirements. As a result, the SI5335A-B02062-GM is a suitable choice for any noise sensitive application where high levels of preciseness, frequency stability, and phase-noise performance are required.

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