Title:
OSCILLATION CIRCUIT AND SCHMIDT TRIGGER CIRCUIT
Document Type and Number:
Japanese Patent JPS6471212
Kind Code:
A
Abstract:
PURPOSE: To reduce power consumption and to eliminate difficulty in usability by forming a circuit as a single integrated circuit based on compound semiconductor technique and almost fixing its oscillation frequency in spite of fluctuation in a power supply voltage. CONSTITUTION: An oscillator 221 is composed of a Schmitt trigger 202, inverters 204, 206 and 208, resistor 212 and capacitor 218. The output of the inverter 204 is supplied through an inverter 230 and the output of the inverter 206 is supplied through an inverter 238 to capacitors 234 and 242 respectively. The capacitors 234 and 242 are biased by diodes 224, 226 and 228. The output of a charge pump 200 is provided from the diode 224 onto a terminal 201.
Inventors:
MAAKU II FUITSUTSUPATORITSUKU
ANDORIYU SHII GURAHAMU
ANDORIYU SHII GURAHAMU
Application Number:
JP12296188A
Publication Date:
March 16, 1989
Filing Date:
May 19, 1988
Export Citation:
Assignee:
GAZELLE MICROCIRCUITS INC
International Classes:
H03K3/02; H03K3/011; H03K3/0231; H03K3/03; H03K3/353; H03K3/354; H03K3/3565; H03K19/0175; H03K19/0952; H03L1/00; (IPC1-7): H03K3/02; H03K3/03; H03K3/353; H03K3/354; H03K19/00; H03K19/094
Attorney, Agent or Firm:
Yoichi Oshima
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