Patent ID: 8737449
Filing Date: 2014-05-27
Classification: H03G,H04B

Abstract:
1. A frequency hopping receiver circuit, comprising: a frequency converter; and a hopping control circuit coupled to the frequency converter, and configured to control a change in frequency shift applied by the frequency converter in combination with a temporary reduction in conversion gain of the frequency converter during the change in frequency shift, wherein the hopping control circuit is configured to slope down the gain before the change in frequency shift and to slope up the gain after the change in frequency shift, wherein the frequency converter has a frequency shift control input and a conversion gain control input, the hopping control circuit comprising a hop time selection circuit coupled to the frequency shift control input and the conversion gain control input, the hopping control circuit comprising a delay circuit, coupled between the hop time selection circuit and the shift control input and configured to delay transmission of signals from the hop time selection circuit to the shift control input relative to transmission of signals to the conversion gain control input.