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

Claim 11:
12. 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 from the BAW oscillator, where the frequency and phase estimation circuit is configured to generate a frequency error signal and a phase error signal;
an orthogonal frequency-division multiplexing (OFDM) generator that is capable of receiving OFDM modulation parameters and a sync signal, where the OFDM generator is configured to generate a codeword;
a variable interpolator/decimator (VID) that is capable of receiving the codeword from the OFDM generator, the phase error signal and the frequency error signal from the frequency and phase estimation circuit, and the BAW CLK from the BAW oscillator, where the VID is configured to generate a corrected codeword; and
a high speed digital to analog converter (HS DAC) that is capable of receiving the BAW CLK from the BAW oscillator and the corrected codeword from the VID, where the HS DAC is configured to output an analog signal.