DC frequency modulation circuit using two phase locked loops

Delta-sigma based dual-port modulation scheme and...

Delta-sigma modulated fractional-N PLL frequency synthesizer...

Digital FM modulator

Digital FM modulator

Digital FM modulator

Digital FM modulator using direct digital synthesizer

Digital frequency modulation system in which high and low freque

Digital frequency synthesizer having AFC and modulation applied

Digitally compensated modulation system for frequency synthesize

Diode circuit flicker-noise reduction

Direct digital synthesis of precise, stable angle modulated RF s

Direct frequency modulation system having an IQ mixer in the...

Direct modulated phase-locked loop

Direct modulation type voltage-controlled oscillator using...

Double mode modulator

Dual band amplifier

Dual port modulator

Dual port phase and magnitude balanced synthesizer modulator and