SI5346A-D-GMR

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The SI5346A-D-GMR is a clock generator and jitter attenuator device with programmable integrated circuits that can help reduce the amount of IEEE 1149.1 (JTAG) and IEEE 1588 (Precision Time Protocol) errors. It is used in telecommunications and computer systems to generate precise clock signals with low jitter and minimized propagation delay. This device is part of a family of silicon integrated circuit clock generators, PLLs (Phase-Locked Loops), and frequency synthesizers from Silicon Labs. The SI5346A-D-GMR device can provide four differential outputs with adjustable frequency, output swing, and output resistance, along with features such as programmable jitter attenuation, programmable slew rate control, pulse-density modulation, and spread-spectrum operation.

The SI5346A-D-GMR provides four differential outputs for use in synchronization of multiple system components. It can also be used in applications such as frequency synthesis and where clock recovery from serial data streams is required. It has programmable jitter attenuation and output skew control, which can help reduce the amount of IEEE 1149.1 and IEEE 1588 errors in applications. It also has programmable slew rate control, pulse-density modulation, and spread-spectrum operation, which can help reduce radiated and conducted EMI (electromagnetic interference).

The SI5346A-D-GMR device is a clock generator/ jitter attenuator device with four differential outputs. It\'s integrated 6-bit fractional-N PLL, coupled with three device-specific user-programmable conditions (provide the ability to precisely control the operating frequency and jitter attenuation of the output clocks. The PLL will accept an external reference signal from the on-board crystal oscillator or an external crystal or clock signal source. This signal is used to generate up to four differential clock outputs with adjustable frequency, output swing, and output resistance.

The SI5346A-D-GMR can accept up to four independent user-programmed input signals, including a spread-spectrum (SS) signal, VDD, and three external square-wave input vectors. Depending upon the specific programming of each output channel, the device can generate signals with an adjustable frequency, output amplitude, and jitter attenuation characteristics, as well as pulse-density modulation. The device\'s ability to accept a wide range of user-programmed inputs makes it ideal for applications requiring precise clock control, such as those in the telecommunications, optical communications, radar, and broadcast markets.

The SI5346A-D-GMR has all the necessary features to allow synchronous operation of multiple components in a system. It also supports a wide range of output frequencies including multiple harmonic frequencies, adjustable phase skew between all four outputs, and adjustable pulse density modulation. The device\'s jitter attenuation features, such as reducing the input jitter by about one order of magnitude, allows for improved system operation in applications where critical timing requirements are required.

The SI5346A-D-GMR is a highly configurable, low cost clock generator/jitter attenuator that can be used in a wide range of applications. It is optimized for low power consumption and is a versatile choice for those requiring reduced EMI, low output jitter, and the ability to program skew and pulse density modulation. This device can provide the optimum high-performance solution for a variety of applications requiring a combination of precision frequency and low jitter characteristics.

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