DS2178SN

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The MAX2178SN is a highly integrated, single-chip clock generator with an internal frequency synthesizer and PLL. It combines a low-noise and ultra-low-jitter oscillator, dual, low-noise voltage-controlled oscillators (VCOs), and a dual low-noise, fast-lock PLL. It also features two outputs: 1 fixed-frequency clock and 1 programmable frequency clock. The programmable output frequency is easily configured by programming a series of internal registers.

The MAX2178SN supports a wide range of applications including mobile and consumer devices, datacom and telecom, and medical and industrial applications. Specifically, the device can be used in a variety of applications including communications networks, digital monitors, set-top boxes, digital video recorders, computers, routers, and switches.

The MAX2178SN generates two low-jitter clock outputs and is designed to minimize system noise and interference by operating at a minimum VCO integer divide ratio. It also features a fully integrated synthesizer and PLL, enabling the user to program a wide range of outputs, from low-jitter clocks to high-precision reference clocks. The device features integrated PLLs with a maximum frequency resolution of 0.02 MHz. In addition, the device can be programmed via a serial interface that supports parallel and serial bus operations, enabling easy and flexible implementation in embedded design.

The MAX2178SN implements an internal low-jitter frequency synthesizer and PLL. Its architecture integrates each active component into the same package with a single power supply, reducing PCB complexity, size, and cost. The PLL and the synthesizer support a wide range of common frequencies from the standard crystal and from external clock sources.

The PLL is designed to provide low-noise, low-jitter, and low-power performance. The integrated PLL provides superior phase noise performance without the need for external components. The device also supports programmable output frequencies up to 3.2 GHz and Phase-Locked Loops (PLLs) with an ultra-wide range of ratios. It also features outputs with a maximum frequency accuracy of 1 ppm and minimum jitter of 0.3 UI.

The MAX2178SN also features two additional low-noise voltages-controlled oscillators (VCOs) with outputs up to 1.8 GHz in both single ended and differential mode. Each of these VCOs allows low-noise, low-jitter generation of output clock frequencies. This is due to the integration of a dedicated, fast-locking PLL architecture, providing precise PLL programming with low-noise and low-jitter outputs. In addition, the internal storage capacitors of the MAX2178SN keep the device stable over time and temperature, improving the long-term stability of the device.

The MAX2178SN is designed to provide designers with low-noise and low-jitter output. It also offers an enhanced noise rejection without the need for additional external components. This, in turn, simplifies board design and reduces cost. Furthermore, it is an ideal solution for applications that demand high precision in multiple clocks.

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