Title:
【発明の名称】トランスコンダクタンスを利用した遮断周波数安定化装置
Document Type and Number:
Japanese Patent JP3095137
Kind Code:
B2
Abstract:
An apparatus for stabilizing cut-off frequency using a transconductance, especially used in a high-frequency filter circuit, capable of maintaining constant frequency characteristics regardless of noise in association with a clock frequency, changes in the temperature, changes in the power supply voltage and errors in fabrication, when a filter circuit is installed in an IC (Integrated Circuit), includes a filtering unit for passing only signals having a frequency band predetermined in the IC; a transconductance setting unit, installed out of the IC, for controlling a transconductance of the filtering unit; and a controlling unit for controlling a transconductance of the transconductance setting unit.
Inventors:
Golden sky
Application Number:
JP18393597A
Publication Date:
October 03, 2000
Filing Date:
July 09, 1997
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G06G7/18; H03F1/30; H03H11/04; H03H11/06; H03H11/12; (IPC1-7): H03H11/04; H03H11/12
Domestic Patent References:
| JP5840929U |
Attorney, Agent or Firm:
Tadahiko Ito (1 outside)