MK1709AG

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The MK1709AG is a dual PLL clock generator integrated circuit used to synthesize precise clock signals from a reference input. The device consists of two independent PLLs connected to a high-precision differential amplifier and two crystal oscillators. The two PLLs can be independently programmed to generate two different clock frequencies from a single reference input. The reference input may be an external crystal, another clock, or a system oscillator. The dedicated logic functions on the device make it ideal for use in applications such as high-end ADC/DAC systems, video systems, etc.

The MK1709AG PLLs use a current-mode phase-frequency (CM/PF) locked loop architecture. This architecture allows for a more precise control of the output frequency compared to traditional PLLs. The architecture also provides high jitter suppression and low phase noise, making it suitable for low-noise clock generation applications. The device provides a frequency range of up to 400 MHz, with a maximum output frequency of 250 MHz.

The device includes a differential amplifier to accurately measure the phase difference between the input frequency and the output frequency. The amplifier can also measure the frequency difference between the two clock outputs. The amplifier also includes a high-precision reference voltage generator which is used to set the proper voltage levels for each VCO.

The MK1709AG also features two separate PLLs for maximum flexibility. The first PLL is ideal for applications where the output frequency needs to remain stable over a wide range of temperatures and process corners. The second PLL is designed for applications where the output frequency needs to be adjusted and changed frequently. The two PLLs allow the designer to generate two different frequencies from a single clock reference, making it easy to develop systems that require multiple frequencies.

The MK1709AG is designed for use in applications such as video systems, communications systems, industrial automation, and other high-end analog circuits. The device is specified for operation over the industrial temperature range of -40C to +85C. The device is available in a variety of packages, including a 8-lead Dual-Inline-Package (DIP).

The MK1709AG is a highly integrated clock generator that offers the flexibility and precision required for the most demanding applications. With its two independent PLLs, high-precision reference generator and differential amplifier, the device provides a cost-effective solution for generating multiple clock signals with high performance and accuracy.

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