SI5335A-B07262-GMR

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The SI5335A-B07262-GMR is a high-performance clock generator and jitter attenuator with a digital phase-locked loop (PLL) providing multiple clock outputs to drive communication and multimedia systems. This clock generator can meet most requirements of synchronous clocks for high-speed communication applications. Offering excellent jitter performance, low phase noise, and low output power, the SI5335A-B07262-GMR is a clock generator ideally suited for supporting applications needing an extremely low-power clock generator.

Application Field

The SI5335A-B07262-GMR is well suited for applications in Ethernet, radio frequency (RF), wide area network (WAN), and wireless local area network (WLAN) chipsets. Its wide range of operating voltages and low output power make it a preferred choice for designers looking to reduce power consumption in their systems. The SI5335A-B07262-GMR also offers outstanding features such as integrated skew compensation, adjustable output frequency and voltage, as well as excellent jitter performance. These features make the SI5335A-B07262-GMR a preferred choice for applications requiring low-power clock generation.

In addition to these features, the SI5335A-B07262-GMR offers an integrated PLL designed for fast and easy installation in communication, networking, and multimedia systems. The PLL provides a single reference clock that can be multiplied or divided to generate the desired output frequencies. The PLL is also designed to adjust the output frequency and voltage based on the input frequency. This feature allows for improved jitter performance and power efficiency because it eliminates the need for external components. The PLL also supports input frequencies up to 250 MHz and can generate output frequencies ranging from 1 MHz to 1GHz.

Working Principle

The SI5335A-B07262-GMR is a monolithic clock generator with an integrated PLL. The PLL integrates an advanced differential charge-pump architecture that provides superior jitter rejection and output accuracy. The PLL also uses an adjustable proportional-integral (PI) loop filter, a feed-forward reference clock shaping filter, and a variable-gain amplifier (VGA) to meet the stringent requirements of many applications. The VGA provides programmable gain for wide-band jitter attenuation and can be set for wide-band or narrow-band operation.

The SI5335A-B07262-GMR operates best when it is supplied with a high frequency reference clock. Typically, this reference clock is provided by a crystal oscillator, an external clock source, or an external PLL. The clock source is connected to the PLL’s reference clock input and the desired output frequencies are programmed into the PLL via a serial port or through a set of programming registers. The SI5335A-B07262-GMR then uses a phase-locked loop (PLL) to generate the desired clock outputs at the programmed frequencies.

The SI5335A-B07262-GMR also provides programmable skew compensation to minimize the skew between the output clocks. Skew compensation can be set up to match the desired system requirements, such as data rate, system system timing, and clocking accuracy. The programmable skew compensation allows the output clocks to remain within the same phase while still offering a wide output frequency range.

In summary, the SI5335A-B07262-GMR is a clock generator and jitter attenuator with a built-in digital phase-locked loop (PLL). It is designed for various communication and multimedia applications requiring low-power, low-jitter clocks. The integrated PLL allows users to adjust the output frequency and voltage based on input frequency, while the adjustible skew compensation allows precise control of the output frequencies. By offering excellent jitter performance, low phase noise, and low output power, the SI5335A-B07262-GMR is an ideal clock generator for all types of systems that require high performance and low power consumption.

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