Patent ID: 8416124
Filing Date: 2013-04-09
Classification: G06F,H03B

Abstract:
1. Frequency synthesizer for a time base generator of a level measuring device which works according to the radar principle, comprising: a reference oscillator for producing a reference frequency signal, a direct digital synthesizer, at least one first output, and at least one second output, wherein the reference oscillator is arranged to interact with the direct digital synthesizer to produce at least one first frequency signal at the at least one first output, wherein the reference oscillator is arranged to produce a second frequency signal at said at least one second output without interconnection of the direct digital synthesizer, the second frequency signal being only slightly different from the first frequency signal, wherein the direct digital synthesizer is adapted to produce only an at least partially minimized noise spectrum, and wherein the direct digital synthesizer is adapted to operate with phase shifts which do not produce noise lines as a result of phase truncation.