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.