| 摘要 |
The invention provides a mixer comprising a multiplier circuit (10) having a first and a second mixer, a generator (30) for generating two first (21, 22) and two second (23, 24) control signals for controlling the first and second mixers, wherein the first and second control signals are in each balanced signals and the first control signals (21, 22) have a frequency f1 and the second control signals (23, 24) have a different frequency f2. |
