AD9542BCPZ-REEL7

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Clock/Timing - Clock Generators, PLLs and Frequency Synthesizers are responsible for providing essential oscillatory frequencies to clocks, systems and applications across a wide range of industries. Such devices must prove to be reliable, precise and highly accurate, capable of responding well to high frequency electrical waveforms and any discrepancies in the clock signal.

The AD9542BCPZ-REEL7, manufactured by Analog Devices, operates as a complete clock generator with an integrated high-resolution PLL, a low power oscillator and a precision temperature-compensated crystal oscillator (TCXO). Specifically designed for high accuracy communications and industrial applications, the device is a key component in ensuring that clocks, nominally locked onto an input reference frequency, remain highly precise over the lifetime application operation.

The AD9542BCPZ-REEL7 operates on a wide frequency range of 33.33 MHz to 38.88 MHz, an enabling feature for applications in a variety of industrial and communications fields. With a PLL loop bandwidth of 37 kHz and a jitter peaking of 12.4 ps, its accuracy and stability in high frequency applications is clear to see. Frequency synthesizing is implemented using a fast-lock, low-spur 32-bit programmable divider, which is set using an in-system programming (ISP) protocol. This enables the chip to use the exact frequency and phase memory of the PLL in order to lock onto a nominal input reference clock.

The AD9542BCPZ-REEL7 is versatile in terms of its output capabilities, with up to 8 independent clocks that can work on separate timebases and also at different frequencies, offering both differential and single-ended clock outputs. Output frequencies are configured using a digitally programmable divider, with phase alignment and phase shifting settings, selectable between 0 and 705 degrees. Remote digital temperature monitoring of the TCXO is also available via an integral temperature logger, providing an important measure of oscillator frequency accuracy.

In summary, the AD9542BCPZ-REEL7 is an effective and highly accurate frequency source, capable of passing on key clock signals to a variety of applications in industrial and communications fields. Its wide frequency range, exceptional PLL bandwidth, low-spur frequency synthesizing and accurate temperature logging capabilities make it an ideal choice for reliable, precise clock frequencies over longer periods of time.

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