SI5395M-A-GM

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The SI5395M-A-GM Clock Generator is a versatile clock-signal integrated circuit designed as a high-performance, low-cost clock solution. It is a multi-phase, all-purpose clock generator that can be used for applications such as clock signal reception and distribution, electrical clocks, and frequency synthesizers. The SI5395M-A-GM is a highly flexible and accurate clock generator device, capable of producing clock signals up to 14.2MHz. It provides a wide range of features, such as programmable output frequencies, both integer and fractional, adjustable output signal power, and operation in both low- to medium-power and high-efficiency modes.

The SI5395M-A-GM is specifically designed as a clock generator for networking/communications applications, such as Ethernet/WiFi/Cell, in which the clock signal frequency is one of the main factors in determining the precision and speed of communications. The SI5395M-A-GM is also commonly used in industrial automation and machine control applications, where it provides reliable and accurate timing signals, as well as in consumer electronics and embedded systems.

The SI5395M-A-GM is based on a Phase Lock Loop (PLL) architecture and includes a programmable digital phase-frequency detector (PFD), a programmable loop filter, a programmable voltage-controlled oscillator (VCO) and an output buffer. The PLL consists of a phase-frequency detector and a VCO. The phase-frequency detector compares the phase of the input signal with the phase of the output signal and outputs a voltage proportional to the phase difference. This voltage is amplified by the loop filter and applied to the VCO, which adjusts its output frequency accordingly. The output buffer amplifies the voltage and converts it into a clock signal.

The SI5395M-A-GM can operate in both slave and master mode. In slave mode, the clock generator is locked to an external reference clock signal. In master mode, the SI5395M-A-GM generates an output clock signal of its own, without an external reference clock. The PFD of the SI5395M-A-GM can be programmed to select any one of several different reference types, including sine wave, square wave, and differential inputs. The PFD also supports a wide range of reference frequencies, from 6.25MHz to 199.99MHz.

The SI5395M-A-GM also includes a built-in programmable power-saving feature that reduces power consumption by lowering the VCO output frequency when the device is idle. This feature can be programmed to enable or disable based on the application needs.

Overall, the SI5395M-A-GM is a highly integrated and economical clock generator device designed to be versatile, low-cost, and reliable. With its extensive range of features, it is suitable for a wide variety of applications, making it the ideal clock generator solution for a variety of networks and communications applications.

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