| 摘要 |
A circuit and method for automatically adjusting a common mode rejection ratio. The circuit includes a mixing circuit for mixing two input signals received via first and second channel input terminals, eliminating noise from the input signals, and supplying a corresponding output signal; and a controller for simultaneously supplying a DC voltage having a predetermined level to the two channel input terminals when a main power source is initially applied, detecting the level of a voltage fed back from an output terminal of the mixing circuit, and controlling an output voltage level of the mixing circuit based on the detected voltage level.
|
