7152AM-02LFT

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 7152AM-02LFT is a programmable phase-locked loop (PLL) frequency synthesizer which provides a frequency-agile local oscillator (LO) signal in the range of 40.0000MHz to 125.0000MHz. It is made up of a 32-bit phase detector and a low-noise VCO, and is housed in a compact 5mm x 5mm QFN package. Asynchronous and differential inputs are available, allowing for both local and remote control.

The 7152AM-02LFT is most useful as a frequency synthesizer or clock generator in many applications, including point-to-point wireless systems, portable communications devices, and embedded systems. The wide frequency range of the device also makes it a suitable choice for systems needing a low-power LO solution, such as short-range radio frequency (RF) applications. The device’s ability to provide noise-filtered and clean output is especially beneficial in applications where noise reduction is a critical factor.

The working principle of the 7152AM-02LFT depends on its phase-locked loop design. The device uses a phase detector and voltage-controlled oscillator (VCO) combined with a reduced phase-noise clock buffer to produce a phase-locked, low-noise output. The phase detector detects a phase difference between the input reference clock and the VCO output, and attempts to lock the phase difference by adjusting the VCO frequency. When the phase difference between the reference clock and VCO output is minimized, the PLL is said to be “locked” and the VCO output is equal in frequency to the reference clock.

The 7152AM-02LFT has an adjustable bandwidth and gain, which provides the user with flexibility in setting the PLL response time and gain, as well as the output frequency accuracy. Other features include a programmable VCO and output divider, adjustable VCO range, adjustable output slew rate and gated reference clock.

In short, the 7152AM-02LFT is a programmable PLL frequency synthesizer that offers a wide frequency range of 40.0000MHz to 125.0000MHz, making it suitable for many applications. It features a phase-locked loop structure with a 32-bit phase detector and a low-noise VCO, adjustable bandwidth and gain, as well as programmable VCO and divider. The device offers high-accuracy output and low noise, making it a great choice for many systems needing a low-power LO solution.

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