April 2020

PRIMITIVE OF THE MONTH

freq_to_clk

This variable-domain translator primitive converts a frequency input to a clock output, which is useful when modeling oscillators.

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MODEL OF THE MONTH

Charge-pump phase-locked loop (PLL)

This basic charge-pump PLL model demonstrates how different categories of XMODEL primitives can be put together to describe a circuit that contains analog, digital, and timing circuits.

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TIP OF THE MONTH

How to measure the phase-domain transfer function of a phase-locked loop

Learn how to use the 'probe_ac' primitive along with variable domain translator (VDT) primitives to perform AC analyses in various variable domains such as phase, frequency, duty-cycle, etc.

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