Title:
【発明の名称】温度補償発振器
Document Type and Number:
Japanese Patent JP2003524305
Kind Code:
A
Abstract:
The present invention concerns an oscillator (20) intended to supply a periodic electric voltage (Vo) at a predetermined frequency (f). This oscillator includes: a reference source (23) able to provide a reference voltage (Vref), this reference source including a resistor (R) linked to said voltage; and supply means (24) able to receive the reference voltage and to supply said periodic voltage at said predetermined frequency, the supply means having a first temperature coefficient (alpha24) so this frequency can vary under the influence of the temperature. This oscillator is characterised in that the resistor is formed to give the reference source a second temperature coefficient (alpha23) equal to the first temperature coefficient, so that the temperature has the same influence on the reference voltage and on the supply means, which allows the periodic voltage to be supplied independently of the temperature.
Inventors:
Divois, Jean-Noel
Application Number:
JP2000529038A
Publication Date:
August 12, 2003
Filing Date:
January 21, 1999
Export Citation:
Assignee:
MM Microelectronic-Marine S.A.R.
International Classes:
H03K3/354; H01L27/08; H03K3/011; H03K3/03; H03L1/02; (IPC1-7): H03L1/02; H03K3/03; H03K3/354
Attorney, Agent or Firm:
Masaki Yamakawa