Circuit arrangement for converting high-frequency digital signal in low frequency digital signal, couples high frequency digital signal to other inputs through digital oscillator signal whose frequency is set to different value

摘要

The arrangement has an exclusive-OR gate (XOR) which switches the high frequency digital signal (S0) and the digital oscillator signal from input to an output (12) of the exclusive-OR gate, such that composite signal containing the low-frequency digital signal (Sa) is occurred. The high frequency digital signal is coupled to the other inputs (10b-10n) of exclusive-OR gate through digital oscillator signal (S1-SN), such that frequencies (F1-Fn) of the digital oscillator signal are set to different values.