상세정보
등록 가변 이득 증폭기
- 출원번호
- 10732720 (2003.12.09)
- 공개번호
- 20040119536 (2004.06.24)
- 등록번호
- 6989716 (2006.01.24)
- 출원국
- 미국
- 협약과제
- 02MM1300, 4세대 이동통신 기술개발, 한기철
- 초록
- Disclosed is a variable gain amplifier having low voltage, low distortion, high linearity and wideband operating characteristics. The variable gain amplifier comprises an input signal provision and variable gain controller for receiving first and second input signals via a differential pair of a cascode shape and amplifying a difference signal of the first and second input signals to output first and second differential signals, wherein the controller controls a variable voltage gain of the difference signal according to a gain control voltage signal, and a current/voltage converter for receiving the first and second differential signals outputted from the input signal provision and variable gain controller and converting the first and second differential signals into first and second output voltages of a voltage inputted type depending on first and second bias voltages, wherein the input signal provision and variable gain controller has a construction of a current inputted type or a voltage inputted type along with negative feedback connection.
- KSP 제안 키워드
- Difference signal, Gain Control, Input signal, Negative feedback, Operating characteristics, Variable Gain, Variable Gain Amplifier(VGA), Variable voltage, Voltage Gain, Voltage converter, bias voltage, control voltage, differential pair, high linearity, low voltage, low-distortion, variable gain controller