Title:
VARIABLE GAIN AMPLIFIER, AND AUTOMATIC LEVEL CONTROLLER
Document Type and Number:
Japanese Patent JP2003168939
Kind Code:
A
Abstract:
To provide an automatic level controller which has a wide level variation and operates at high speed.
This automatic level controller, which keeps its level fixed by detecting the level of an output signal and controlling it, is equipped with a saturation amplifier and a variable gain amplifier consisting of a PIN diode and a variable gain element, and this secures a wide level variation and high- speed operability by suppressing the change of sensitivity caused by the PIN diode.
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Inventors:
SEKINE YOJI
YAGI TOSHIYUKI
YAGI TOSHIYUKI
Application Number:
JP2001367103A
Publication Date:
June 13, 2003
Filing Date:
November 30, 2001
Export Citation:
Assignee:
AGILENT TECHNOLOGIES JAPAN LTD
International Classes:
H03G3/30; (IPC1-7): H03G3/30
Attorney, Agent or Firm:
Kimohisa Kato
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