| 摘要 |
The circuit has a first mixer (MI1) with two inputs and an output, a filter (FI) with a filter input connected to the mixer output, a second mixer (MI2) receiving the filter output, a first frequency generator (PLL1) that receives a signal representing the filter frequency error (deltaF) w.r.t. a desired characteristic and drives a second input of the first mixer and a second frequency generator (PLL2) that receives the signal representing the filter frequency error w.r.t. a desired characteristic and drives a second input of the second mixer. |
