Title:
OSCILLATOR AND VOLTAGE GENERATION CIRCUIT
Document Type and Number:
Japanese Patent JP2015095849
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To increase an input impedance of a terminal for inputting a frequency control signal.SOLUTION: An oscillator includes: an oscillation section 1 for outputting a variable frequency oscillation signal; an input section 20 having a source follower circuit for generating a control voltage depending on a voltage of an input control signal; a voltage conversion section 30 for converting the control voltage to a frequency control voltage to be input into the oscillation section 1; and a control section 3 for inputting into the voltage conversion section 30 a conversion rate control signal to control a conversion rate that is a variation in the frequency control voltage relative to a variation in the control voltage.
More Like This:
Inventors:
KUNITOMO DAISUKE
Application Number:
JP2013235613A
Publication Date:
May 18, 2015
Filing Date:
November 14, 2013
Export Citation:
Assignee:
NIHON DEMPA KOGYO CO
International Classes:
H03B5/32; H03L7/099
Domestic Patent References:
| JP2000188527A | 2000-07-04 | |||
| JP2007060588A | 2007-03-08 |
Attorney, Agent or Firm:
Izumidori