Patent ID: 11933919
Assignee: MIXED-SIGNAL DEVICES INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A direct frequency synthesizer comprising:
a high speed bulk acoustic wave (BAW) resonator configured to generate a frequency signal;
a BAW oscillator capable of receiving the frequency signal, where the BAW oscillator is configured to generate an output BAW clock signal (BAW CLK);
a frequency and phase estimation circuit capable of receiving a reference clock signal from a reference clock (REF CLK) and the BAW CLK, where the frequency and phase estimation circuit is configured to generate a frequency error signal and a phase error signal;
a code-modulated continuous wave (CMCW) generator capable of receiving CM parameters and a sync signal, where the CMCW generator is configured to generate a codeword;
a variable interpolator/decimator (VID) capable of receiving the codeword from the CMCW generator, the phase error signal and the frequency error signal from the frequency and phase estimation circuit and the BAW CLK signal from the BAW oscillator, where the VID is configured to generate a corrected codeword; and
a high speed digital to analog converter (HS DAC) capable of receiving the BAW CLK and the corrected codeword, where the HS DAC is configured to output an analog signal.