MK2746GLF

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The MK2746GLF is a clock generator, phase locked loop (PLL), frequency synthesizer from Freescale Semiconductor. It is designed for use in applications such as electronic test and measurements, audio/video synthesis and processing, digital multicast radio, networking, and communications. The device is an all-in-one, low noise clock and data solution, providing low-jitter clock sources and programmable frequency.

The device features an output selectable, PECL/LVPECL clock, driven by a programmable oscillator. Internal, programmable dividers allow for input frequencies within the range of 1-500 MHz. An on-chip voltage-controlled oscillator (VCO) also provides a low-noise source for clock generation. The internal VCO can be programmed to generate two possible clock frequencies, selected via the output selectable, PECL/LVPECL clock pin.

The device includes a wide variety of features including dual-channel PLL, spread spectrum capability, wideband clock buffer output, and an extremely low phase noise of -200dBc/Hz maximum. In addition, the device offers an operating temperature range of -40℃ to 85℃.

The device operates on a low-power supply, typically requiring only 1.2V or 2.5V, depending on the desired output voltage. The power consumption of the device is also low, typically 0.25mA or less. This makes it suitable for use in applications that require energy efficiency. Additionally, it offers a wide dynamic range of ±50%.

The device also provides a comprehensive set of features for programmability, such as autocalibration, dynamic bypassing of the PLL, and output disable. These features enable the user to customize the device for applications requiring variable clock frequencies and programmable clock accuracy. Additionally, the device offers an advanced integration of other functions, such as clock mixing, clock multiplexing, and dynamic frequency control.

The device also offers advanced clock security, providing a reduced EMI by avoiding spurious clock sources. In addition, the device supports wideband differential outputs, reducing external linear distortion. This makes the device suitable for applications where stringent EMI requirements are in place.

Overall, the MK2746GLF offers a complete clock and data solution for a wide variety of applications. Its wide range of features, low noise performance, and low power consumption make it an ideal choice for applications requiring low-jitter, high-precision clock sources. Its integrated features, such as autocalibration, dynamic bypassing of the PLL, and output disable, allow for greater control and customization of clock frequency and accuracy. Its wide dynamic range and reduced EMI capabilities make it suitable for applications with stringent EMI requirements.

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