Description
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The PLLXplore 1 board brings an entire world of PLL experimentation into a single, convenient PMOD module. Built around fully digital PLL concepts, it allows you to implement everything from a basic integer‑N PLL to advanced fractional‑N architectures with Delta‑Sigma frequency synthesis.
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Start with our introductory HDL example to build a synchronous phase‑frequency detector, then expand and customize it however you like—even all the way to an asynchronous time‑to‑digital‑converter‑based fractional‑N PLL. You’re free to design your own control structures, explore new architectures, and push the boundaries of what a digital PLL can do.
- Delta Sigma DAC capable of 1.5Vpp output at 1MHz and 55db SFDR.
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PLLXplore 1 is great for absolute beginners all the way to experimenting professionals. With PLLXplore 1, your only limit is your imagination.
Features
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1 to 40MHz VCO 1-10 or 4-40 MHz pin selectable
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1MHz output 5th order Delta Sigma DAC
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130pS RMS Jitter
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<0.1% RMS Jitter at 5Mhz
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<0.8% RMS Jitter at 40MHz
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3.3V Single Supply from PMOD
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ADC loop filter 20KHz selectable
- Exploratory Bandgap Circuit W/ test signal generator
Applications
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All digital PLL
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Fractional N PLL/Delta Sigma/MASH
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Up to 1MHz Delta Sigma Signal Generator
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LF MF and HF band HAM frequency synthesizer
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Dither techniques
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PLL control loop development
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