Title:
AUTOMATIC GAIN CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JPS58108812
Kind Code:
A
Abstract:
An automatic gain control circuit is disclosed which is direct coupled to phase opposed outputs of an IF amplifier and provides a DC control voltage for controlling the gain of the amplifier. The AGC circuit includes a peak-to-peak threshold detector and an integrating capacitor. The quiescent voltage across the capacitor is accurately established by a voltage divider network and a feedback network. Separate current sources are provided to establish dual time constants in the circuit so that distortion is minimized while accommodating a stop on station feature.
Inventors:
FUREDERITSUKU EE ARUDORITSUJI
BAATORON DEE SUKERUTSU
BAATORON DEE SUKERUTSU
Application Number:
JP21852282A
Publication Date:
June 29, 1983
Filing Date:
December 15, 1982
Export Citation:
Assignee:
GEN MOTORS CORP
International Classes:
H03G3/30; H03G3/20; (IPC1-7): H03G3/20
Attorney, Agent or Firm:
Masao Okabe