| 摘要 |
A signal processing system having different power domains is provided. The signal processing system has a first amplifier circuit operating under a first power domain; a second amplifier circuit operating under a second power domain and having a feedback configuration; a first impedance unit, coupled between an output node of the first amplifier circuit and a first input node of the second amplifier circuit; and a bias current generating circuit, coupled to the first input node of the second amplifier circuit, for providing a bias current to thereby reduce a DC current flowing through a feedback path of the second amplifier unit.
|
