digital-pll

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fangzheshen / stm32f407-lissajous-pll

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基于STM32F407与AD9833实现的李萨如图形控制装置，支持双ADC同步采样、FFT频相估计、数字锁相及频率—相位双闭环控制。

signal-processing embedded-systems fft ad9833 lissajous-figures stm32f407vgt6 direct-digital-synthesis digital-pll

Updated Aug 27, 2026
C

SriKondapaturi / tt-um-govardhana-adpll

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Two-tile all-digital PLL taped out on TinyTapeout SKY26c (SkyWater 130nm). Ring-oscillator DCO, counter-based TDC, PI loop filter. Locks 10 MHz reference to programmable output frequency up to 63x.

asic rtl verilog pll ring-oscillator physical-design tape-out adpll skywater openlane sky130 chip-design tinytapeout opensiliconhub digital-pll

Updated Sep 9, 2026
Verilog

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