LTC6948IUFD-4

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The LTC6948IUFD-4 is a Linear Technology low-power, pin programmable, spread spectrum clock generator with an integrated Micro-Power PLL. It provides an ideal solution for replacing multiple discrete components in clock design and provides a significant improvement in product performance and flexibility. This device is used in applications ranging from consumer goods to industrial and medical products.

The LTC6948IUFD-4 features Spread Spectrum clock frequency modulation technology with a wide frequency range from 200kHz to 300MHz. It supports single-wire or differential outputs with both enabled and 3-state outputs to provide the user with a flexible and cost-effective solution. The integrated PLL allows the user to modify the clock frequency on-the-fly using simple pin programming. In addition, the device has an active filter to help minimize power consumption.

Working principle: The LTC6948IUFD-4 works by modulating an input clock with Spread Spectrum Frequency Modulation (SSFM). When an input clock is applied to the device, the PLL generates a signal whose frequency is related to the input frequency. This signal is then passed through a digital filter to generate a digital spread spectrum clock signal with a frequency range of 200kHz to 300MHz. The filtered signal is then fed to the output stages, where it is converted from a digital signal to an analog signal.

The LTC6948IUFD-4 is designed for a wide range of applications including consumer goods, industrial, and medical products. When used in consumer electronic products, it can provide a low-power, energy efficient solution for clock generation. In industrial and medical products, the LTC6948IUFD-4 can provide a low-jitter, high-accuracy clock source. Additionally, it can provide a wide spectrum of frequencies to accommodate specific functions such as data acquisition, digital signal processing, and high speed communications.

The LTC6948IUFD-4 is a highly reliable, low cost, and low power device for clock generation. Its features, such as integrated PLL, wide frequency range, active filter, and low-jitter output, make it an ideal solution for a wide range of applications. Additionally, it provides a cost-effective alternative to traditional discrete components for clock design.

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