Synthesizer and phase frequency detector
AssigneeSony Corporation
InventorsArndt Thomas Ott, Mathias Krempig
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Abstract
A synthesizer comprises a two-point modulation phase locked tow, TPM PLL, circuit configured to receive a frequency tuning signal and to generate a stepped chirp signal in an intermediate frequency range by applying a two-point modulation PLL on the frequency tuning signal, and a subsampling PLL circuit configured to receive the stepped chirp signal in a mm-wave frequency range and to generate a smoothened chirp signal in a mm-wave frequency range by applying a subsampling PLL on the stepped chirp signal.
Claims17
A synthesizer comprising
- a two-point modulation phase locked loop, TPM PLL, circuit configured to receive a frequency tuning signal and to generate a stepped chirp signal in an intermediate frequency range by applying a two-point modulation PLL on the frequency tuning signal, and
- a subsamplinq PLL circuit configured to receive the stepped chirp signal in a mm-wave frequency range and to generate a smoothened chirp signal in a mm-wave frequency range by applying a subsampling PLL on the stepped chirp signal.
A dead zone phase frequency detector configured comprising circuitry configured to generate a phase detection signal, wherein the circuitry is configured to generate a predetermined time interval in which the dead zone phase frequency detector does not generate a phase detection signal.
Dependencies are inferred from the claim text.