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Communication Dans Un Congrès Année : 2023

Special Session: A high-frequency sinusoidal signal generation using harmonic cancellation

Résumé

An on-chip high-frequency sinusoidal signal generator with a calibration circuit based on a coarse-fine delay cell is presented in this work. The harmonic cancellation principle is used for signal generation by adding scaled and time-shifted versions of a periodic signal. However, as the output frequency increases in the GHz range, the harmonic cancellation can be severely affected by non-idealities such as mismatch and variations on timing parameters (phase difference, duty cycle) of the time-shifted signals. This degrades the spectral purity of the output signal. To counter this, a calibration circuit based on a coarse-fine delay cell is integrated into the system to correct the timing parameters of the signal. Simulation results show a THD better than −60dB in the frequency range from 500MHz to 2GHz.
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Dates et versions

hal-04253276 , version 1 (22-10-2023)

Identifiants

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Ankush Mamgain, Salvador Mir, Jai Narayan Tripathi, Manuel Barragan. Special Session: A high-frequency sinusoidal signal generation using harmonic cancellation. 2023 IEEE 24th Latin American Test Symposium (LATS), Mar 2023, Veracruz, Mexico. pp.1-2, ⟨10.1109/LATS58125.2023.10154502⟩. ⟨hal-04253276⟩

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