LTC1436ACGN-PLL

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The LTC1436ACGN-PLL is a frequency synthesizer from Linear Technology Corporation, designed for applications such as frequency-hopping radios, digital broadcasting, clock and data communications, and other timing applications. It is a monolithic IC that provides a complete system for generating and controlling the frequency of a frequency-hopping signal. In addition, the IC can generate a frequency-hopping signal with the optimum balance between accuracy and stability and offers the ability to vary the speed of the signal over a wide range.

The LTC1436ACGN-PLL integrates a comprehensive frequency-hopping synthesizer with an integrated phase-locked loop, allowing it to act as an open-loop frequency synthesizer, while still maintaining accurate and stable frequency-hopping output. The internal PLL circuitry enables the device to track and keep the output frequency and phase within fractional degrees of accuracy. Additionally, the device offers various frequency-hopping signal types, such as sine-wave, fixed-pattern, and analog-type signals.

The integrated precision reference and temperature-compensated voltage-controlled oscillator (VCO) provides a wide frequency range to the user. The internal reference is designed for operation up to 7.4GHz, offers a temperature coefficient of variation (NCV) of ±2 parts per million over the -40 to 125°C temperature range, making it suitable for applications with demanding performance requirements. The VCO provides a tuning range from 0.007 to 7.4GHz.

The LTC1436ACGN-PLL is designed to regulate output frequencies over a wide range. It utilizes a high-speed programmable frequency divider and a low-speed phase-locked loop control circuit to provide accurate frequency control in the output signal. Additionally, the device is capable of handling complex frequency-hopping patterns. An external capacitor can be used to adjust the divider ratio to achieve the desired frequency output. The adjustable total output frequency range with externally adjusted dividers can be as wide as 0.007 to 7.4GHz.

The LTC1436ACGN-PLL is equipped with a variety of built-in voltage regulators and control logic to help achieve accurate and reliable operation. Security features include an adjustable timeout timer and a watchdog timer that monitor the frequency hopping and can be set to reset the device in the event of an error. The device also comes with an internal oscillator that supports synchronization of multiple devices.

The LTC1436ACGN-PLL is designed for use in a wide variety of applications, including frequency hopping radios, digital broadcasting, clock and data communications, and other timing applications. It is designed for use in the DC to DC switching controllers, voltage regulators, and PMIC markets. Its monolithic design, low power consumption, wide tuning range, and accuracy make it an excellent choice for frequency-hopping synthesis applications.

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