An automotive radar apparatus , comprising: a bit stream modulation circuit configured to generate a bit stream signal at an output thereof; a driver circuit having an input coupled to the output of said bit stream modulation circuit and having an output, said driver circuit configured to receive the bit stream signal at the input of the driver circuit and configured to generate a corresponding driver bit stream signal , wherein the driver circuit having an operational characteristic that supports a substantially lower bit stream rate than the bit stream rate of the bit stream signal provided to the driver circuit such that the driver circuit producing the driver bit stream signal having edge transition times that are greater than edge transition times associated with the bit stream signal provided to the input of the driver circuit , wherein the driver bit stream signal having an output swing at the driver circuit output which is reduced in comparison with an output swing of the bit stream signal provided to the driver circuit ; a filter circuit having an input coupled to the output of said driver circuit and having an output, said filter circuit configured to receive the driver bit stream signal at the input of the filter circuit and configured to generate a filtered bit stream signal at the filter circuit output; and a voltage controlled oscillator having an input coupled to the output of said filter circuit and having an output, said voltage controlled oscillator configured to receive the filtered bit stream signal at the input of the voltage controlled oscillator and configured to generate an RF output signal at the voltage controlled oscillator output. a bit stream modulation circuit configured to generate a bit stream signal at an output thereof; a driver circuit having an input coupled to the output of said bit stream modulation circuit and having an output, said driver circuit configured to receive the bit stream signal at the input of the driver circuit and configured to generate a corresponding driver bit stream signal , wherein the driver circuit having an operational characteristic that supports a substantially lower bit stream rate than the bit stream rate of the bit stream signal provided to the driver circuit such that the driver circuit producing the driver bit stream signal having edge transition times that are greater than edge transition times associated with the bit stream signal provided to the input of the driver circuit , wherein the driver bit stream signal having an output swing at the driver circuit output which is reduced in comparison with an output swing of the bit stream signal provided to the driver circuit ; a filter circuit having an input coupled to the output of said driver circuit and having an output, said filter circuit configured to receive the driver bit stream signal at the input of the filter circuit and configured to generate a filtered bit stream signal at the filter circuit output; and a voltage controlled oscillator having an input coupled to the output of said filter circuit and having an output, said voltage controlled oscillator configured to receive the filtered bit stream signal at the input of the voltage controlled oscillator and configured to generate an RF output signal at the voltage controlled oscillator output. <EOS>