Electronic device comprising a frequency multiplier circuit, frequency multiplier circuit and method of multiplying signal frequencies

摘要

This electronic device comprises a periodic signal generator (12) and a frequency multiplier circuit (14) for multiplying the frequency of these periodic signals. This multiplier circuit (14) is formed on the basis of an EXCLUSIVE-OR gate (20), which receives said periodic signals, and a frequency divider circuit (22) connected between the output and an input of said gate. From this divider circuit it is possible to derive in a very simple way quadrature signals, which permits to perform a modulation of the type known by the name of “zero demodulation”. ;In an advantageous manner this multiplier circuit (14) is realized in accordance with CML technology (Current Mode Logic). Application to data transmission.